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| author | Martin Liska <mliska@suse.cz> | 2022-10-13 15:54:17 +0200 |
|---|---|---|
| committer | Martin Liska <mliska@suse.cz> | 2022-10-13 15:54:17 +0200 |
| commit | bd21c04269deded2c7476ceca1100a26f28ea526 (patch) | |
| tree | 197bf75eedac69362078a4ccc0afe5615c45c327 /libstdc++-v3 | |
| parent | d9e7934d25da4a78ffef1f738206aa1d897911df (diff) | |
| parent | 786e4c024f941671a233f5779d73a5d22f4e9588 (diff) | |
| download | gcc-bd21c04269deded2c7476ceca1100a26f28ea526.zip gcc-bd21c04269deded2c7476ceca1100a26f28ea526.tar.gz gcc-bd21c04269deded2c7476ceca1100a26f28ea526.tar.bz2 | |
Merge branch 'master' into devel/sphinx
Diffstat (limited to 'libstdc++-v3')
52 files changed, 1047 insertions, 177 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 68f9a1d..a78e198 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,121 @@ +2022-10-12 François Dumont <fdumont@gcc.gnu.org> + + * include/debug/string: Add using _Base::compare. + (__gnu_debug::basic_string<>::compare(const basic_string<>&)): Remove. + (__gnu_debug::basic_string<>::compare(size_type, size_type, const basic_string<>&)): + Remove. + (__gnu_debug::basic_string<>::compare(size_type, size_type, const basic_string<>&, + size_type, size_type)): Remove. + * testsuite/util/testsuite_string.h [_GLIBCXX_TEST_DEBUG_STRING]: Include <debug/string>. + * testsuite/21_strings/basic_string/operations/compare/char/1.cc: Include testsuite_string.h + and use __gnu_test::string. + * testsuite/21_strings/basic_string/operations/compare/char/13650.cc: Likewise. + * testsuite/21_strings/basic_string/operations/compare/char/2.cc: Likewise. + * testsuite/21_strings/basic_string/operations/rfind/char/1.cc: Likewise. + * testsuite/21_strings/basic_string/operations/rfind/char/2.cc: Likewise. + * testsuite/21_strings/basic_string/operations/rfind/char/3.cc: Likewise. + * testsuite/21_strings/basic_string/operations/compare/wchar_t/1.cc: + Include testsuite_string.h + and use __gnu_test::wstring. + * testsuite/21_strings/basic_string/operations/compare/wchar_t/13650.cc: Likewise. + * testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc: Likewise. + +2022-10-12 Patrick Palka <ppalka@redhat.com> + + * include/std/ranges (repeat_view): Define. + (repeat_view::_Iterator): Define. + (views::__detail::__can_repeat_view): Define. + (views::__detail::__can_bounded_repeat_view): Define. + (views::_Repeat, views::repeat): Define. + * testsuite/std/ranges/repeat/1.cc: New test. + +2022-10-12 Martin Liska <mliska@suse.cz> + + * configure: Regenerate. + +2022-10-11 Jonathan Wakely <jwakely@redhat.com> + + PR bootstrap/107221 + * libsupc++/eh_alloc.cc (pool): Change preprocessor condition + for using __mutex from __GTHREADS to _GLIBCXX_HOSTED. + (pool::allocate): Remove namespace qualification to use + pool::__scoped_lock instead of __gnu_cxx::__scoped_lock. + +2022-10-11 Jonathan Wakely <jwakely@redhat.com> + + PR libstdc++/68606 + * Makefile.in: Regenerate. + * acinclude.m4 (GLIBCXX_EMERGENCY_EH_ALLOC): New macro. + * configure: Regenerate. + * configure.ac: Use GLIBCXX_EMERGENCY_EH_ALLOC. + * crossconfig.m4: Check for secure_getenv. + * doc/Makefile.in: Regenerate. + * doc/xml/manual/configure.xml: Document new configure options. + * doc/xml/manual/evolution.xml: Document addition of tunables. + * doc/xml/manual/using_exceptions.xml: Document emergency + buffer and tunables. + * doc/html/*: Regenerate. + * include/Makefile.in: Regenerate. + * libsupc++/Makefile.am: Use EH_POOL_FLAGS. + * libsupc++/Makefile.in: Regenerate. + * libsupc++/eh_alloc.cc (EMERGENCY_OBJ_SIZE): Define in units + of sizeof(void*) not including the ABI's exception header. + (EMERGENCY_OBJ_COUNT): Define as target-independent calculation + based on word size. + (MAX_OBJ_COUNT): Define macro for upper limit on pool size. + (pool) [_GLIBCXX_EH_POOL_STATIC]: Use fixed-size buffer. + (pool::buffer_size_in_bytes): New static member function. + (pool::pool): Parse GLIBCXX_TUNABLES environment variable to set + pool size at runtime. + (pool::in_pool): Use std::less<void*> for total order. + (__freeres) [_GLIBCXX_EH_POOL_STATIC]: Do nothing. + (__cxa_free_exception, __cxa_free_dependent_exception): Add + [[unlikely]] attributes. + * po/Makefile.in: Regenerate. + * python/Makefile.in: Regenerate. + * src/Makefile.in: Regenerate. + * src/c++11/Makefile.in: Regenerate. + * src/c++17/Makefile.in: Regenerate. + * src/c++20/Makefile.in: Regenerate. + * src/c++98/Makefile.in: Regenerate. + * src/filesystem/Makefile.in: Regenerate. + * src/libbacktrace/Makefile.in: Regenerate. + * testsuite/Makefile.in: Regenerate. + +2022-10-11 Olivier Hainque <hainque@adacore.com> + Olivier Hainque <hainque@adacore.com> + + * configure: Regenerate. + +2022-10-10 Jonathan Wakely <jwakely@redhat.com> + + * include/std/type_traits (make_signed, make_unsigned): Remove + constraints on primary template. + * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: + Undo changes to expected error in C++20 mode. + * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: + Likewise. + * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc: + Likewise. + * testsuite/20_util/make_signed/requirements/uninstantiated.cc: + New test. + * testsuite/20_util/make_unsigned/requirements/uninstantiated.cc: + New test. + +2022-10-10 Jonathan Wakely <jwakely@redhat.com> + + * include/std/type_traits (make_signed, make_unsigned): Add + specializations for cv bool. Add requires-clause for C++20 to + improve diagnostics for non-integral, non-enum cases. + * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: + Check cv bool. + * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: + Likewise. + * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc: + Adjust expected errors for C++20 and later. + * testsuite/lib/prune.exp: Prune "in requirements [with ...]" + lines from diagnostics. + 2022-10-07 Jonathan Wakely <jwakely@redhat.com> * acinclude.m4 (GLIBCXX_ENABLE_HOSTED): Add libstdcxx-hosted diff --git a/libstdc++-v3/Makefile.in b/libstdc++-v3/Makefile.in index 58a0acd..a7c2b60 100644 --- a/libstdc++-v3/Makefile.in +++ b/libstdc++-v3/Makefile.in @@ -240,6 +240,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index 719eab1..6523ba9 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -5092,6 +5092,51 @@ BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize" GLIBCXX_CONDITIONAL(ENABLE_BACKTRACE, [test "$enable_libstdcxx_backtrace" = yes]) ]) +dnl +dnl Allow the emergency EH pool to be configured. +dnl +dnl --enable-libstdcxx-static-eh-pool will cause a fixed-size static buffer +dnl to be used for allocating exceptions after malloc fails. The default is +dnl to allocate a buffer using malloc +dnl +dnl --with-libstdcxx-eh-pool-obj-count=N will set the default size for the +dnl buffer. For a static buffer that size is fixed permanently. For a dynamic +dnl buffer it's the default, but it can be overridden from the environment. +dnl +dnl To set the default to approximately the same values as GCC 12, +dnl use --with-libstdcxx-eh-pool-obj-count=94 for 32-bit targets, +dnl and --with-libstdcxx-eh-pool-obj-count=252 for 64-bit targets. +dnl +dnl Defines: +dnl _GLIBCXX_EH_POOL_STATIC if a fixed-size static buffer should be used +dnl instead of allocating a buffer on startup. +dnl _GLIBCXX_EH_POOL_NOBJS to override the default EMERGENCY_OBJ_COUNT value. +dnl +AC_DEFUN([GLIBCXX_EMERGENCY_EH_ALLOC], [ + eh_pool_static= + eh_pool_nobjs= + AC_ARG_ENABLE([libstdcxx-static-eh-pool], + AC_HELP_STRING([--enable-libstdcxx-static-eh-pool], + [use a fixed-size static buffer for allocating exceptions if malloc fails]), + [if test "${enableval}" = yes; then + eh_pool_static="-D_GLIBCXX_EH_POOL_STATIC" + AC_MSG_NOTICE([EH pool using static buffer]) + fi],) + + AC_ARG_WITH([libstdcxx-eh-pool-obj-count], + AC_HELP_STRING([--with-libstdcxx-eh-pool-obj-count], + [the number of exceptions that can be allocated from the pool if malloc fails]), + [if test "${withval}" -ge 0 2>/dev/null; then + eh_pool_obj_count="-D_GLIBCXX_EH_POOL_NOBJS=${withval}" + AC_MSG_NOTICE([EH pool object count: ${withval}]) + else + AC_MSG_ERROR([EH pool obj count must be a non-negative integer: $withval]) + fi],) + + EH_POOL_FLAGS="$eh_pool_static $eh_pool_obj_count" + AC_SUBST(EH_POOL_FLAGS) +]) + # Macros from the top-level gcc directory. m4_include([../config/gc++filt.m4]) m4_include([../config/tls.m4]) diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure index 7ead77a..6077e69 100755 --- a/libstdc++-v3/configure +++ b/libstdc++-v3/configure @@ -675,6 +675,7 @@ DOT DOXYGEN BUILD_INFO_FALSE BUILD_INFO_TRUE +EH_POOL_FLAGS ENABLE_BACKTRACE_FALSE ENABLE_BACKTRACE_TRUE BACKTRACE_SUPPORTS_THREADS @@ -958,6 +959,8 @@ with_default_libstdcxx_abi enable_libstdcxx_threads enable_libstdcxx_filesystem_ts enable_libstdcxx_backtrace +enable_libstdcxx_static_eh_pool +with_libstdcxx_eh_pool_obj_count enable_cet with_gxx_include_dir enable_version_specific_runtime_libs @@ -1668,6 +1671,9 @@ Optional Features: turns on ISO/IEC TS 18822 support [default=auto] --enable-libstdcxx-backtrace turns on libbacktrace support [default=auto] + --enable-libstdcxx-static-eh-pool + use a fixed-size static buffer for allocating + exceptions if malloc fails --enable-cet enable Intel CET in target libraries [default=auto] --enable-version-specific-runtime-libs Specify that runtime libraries should be installed @@ -1695,6 +1701,9 @@ Optional Packages: --with-system-libunwind use installed libunwind --with-default-libstdcxx-abi set the std::string ABI to use by default + --with-libstdcxx-eh-pool-obj-count + the number of exceptions that can be allocated from + the pool if malloc fails --with-gxx-include-dir=DIR installation directory for include files --with-toolexeclibdir=DIR @@ -7089,6 +7098,11 @@ sysv4 | sysv4.3*) tpf*) lt_cv_deplibs_check_method=pass_all ;; +vxworks*) + # Assume VxWorks cross toolchains are built on Linux, possibly + # as canadian for Windows hosts. + lt_cv_deplibs_check_method=pass_all + ;; esac fi @@ -11747,6 +11761,25 @@ uts4*) shlibpath_var=LD_LIBRARY_PATH ;; +# Shared libraries for VwWorks, >= 7 only at this stage +# and (fpic) still incompatible with "large" code models +# in a few configurations. Only for RTP mode in any case, +# and upon explicit request at configure time. +vxworks7*) + dynamic_linker=no + case ${with_multisubdir}-${enable_shared} in + *large*) + ;; + *mrtp*-yes) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker="$host_os module_loader" + ;; + esac + ;; *) dynamic_linker=no ;; @@ -12203,7 +12236,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 12206 "configure" +#line 12239 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -12309,7 +12342,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 12312 "configure" +#line 12345 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -13874,8 +13907,9 @@ if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi ;; vxworks*) - # FIXME: insert proper C++ library support - ld_shlibs_CXX=no + # For VxWorks ports, we assume the use of a GNU linker with + # standard elf conventions. + ld_shlibs_CXX=yes ;; *) @@ -15426,6 +15460,25 @@ uts4*) shlibpath_var=LD_LIBRARY_PATH ;; +# Shared libraries for VwWorks, >= 7 only at this stage +# and (fpic) still incompatible with "large" code models +# in a few configurations. Only for RTP mode in any case, +# and upon explicit request at configure time. +vxworks7*) + dynamic_linker=no + case ${with_multisubdir}-${enable_shared} in + *large*) + ;; + *mrtp*-yes) + version_type=linux + need_lib_prefix=no + need_version=no + library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major $libname${shared_ext}' + soname_spec='${libname}${release}${shared_ext}$major' + dynamic_linker="$host_os module_loader" + ;; + esac + ;; *) dynamic_linker=no ;; @@ -16009,7 +16062,7 @@ $as_echo "$glibcxx_cv_atomic_long_long" >&6; } # Fake what AC_TRY_COMPILE does. cat > conftest.$ac_ext << EOF -#line 16012 "configure" +#line 16065 "configure" int main() { typedef bool atomic_type; @@ -16044,7 +16097,7 @@ $as_echo "$glibcxx_cv_atomic_bool" >&6; } rm -f conftest* cat > conftest.$ac_ext << EOF -#line 16047 "configure" +#line 16100 "configure" int main() { typedef short atomic_type; @@ -16079,7 +16132,7 @@ $as_echo "$glibcxx_cv_atomic_short" >&6; } rm -f conftest* cat > conftest.$ac_ext << EOF -#line 16082 "configure" +#line 16135 "configure" int main() { // NB: _Atomic_word not necessarily int. @@ -16115,7 +16168,7 @@ $as_echo "$glibcxx_cv_atomic_int" >&6; } rm -f conftest* cat > conftest.$ac_ext << EOF -#line 16118 "configure" +#line 16171 "configure" int main() { typedef long long atomic_type; @@ -16271,7 +16324,7 @@ $as_echo "mutex" >&6; } # unnecessary for this test. cat > conftest.$ac_ext << EOF -#line 16274 "configure" +#line 16327 "configure" int main() { _Decimal32 d1; @@ -16313,7 +16366,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu # unnecessary for this test. cat > conftest.$ac_ext << EOF -#line 16316 "configure" +#line 16369 "configure" template<typename T1, typename T2> struct same { typedef T2 type; }; @@ -54224,6 +54277,17 @@ _ACEOF fi done + for ac_func in secure_getenv +do : + ac_fn_c_check_func "$LINENO" "secure_getenv" "ac_cv_func_secure_getenv" +if test "x$ac_cv_func_secure_getenv" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_SECURE_GETENV 1 +_ACEOF + +fi +done + @@ -71872,6 +71936,37 @@ $as_echo "7.1.0" >&6; } fi +# For libsupc++/eh_alloc.cc defaults. + + eh_pool_static= + eh_pool_nobjs= + # Check whether --enable-libstdcxx-static-eh-pool was given. +if test "${enable_libstdcxx_static_eh_pool+set}" = set; then : + enableval=$enable_libstdcxx_static_eh_pool; if test "${enableval}" = yes; then + eh_pool_static="-D_GLIBCXX_EH_POOL_STATIC" + { $as_echo "$as_me:${as_lineno-$LINENO}: EH pool using static buffer" >&5 +$as_echo "$as_me: EH pool using static buffer" >&6;} + fi +fi + + + +# Check whether --with-libstdcxx-eh-pool-obj-count was given. +if test "${with_libstdcxx_eh_pool_obj_count+set}" = set; then : + withval=$with_libstdcxx_eh_pool_obj_count; if test "${withval}" -ge 0 2>/dev/null; then + eh_pool_obj_count="-D_GLIBCXX_EH_POOL_NOBJS=${withval}" + { $as_echo "$as_me:${as_lineno-$LINENO}: EH pool object count: ${withval}" >&5 +$as_echo "$as_me: EH pool object count: ${withval}" >&6;} + else + as_fn_error $? "EH pool obj count must be a non-negative integer: $withval" "$LINENO" 5 + fi +fi + + + EH_POOL_FLAGS="$eh_pool_static $eh_pool_obj_count" + + + # Define documentation rules conditionally. # See if makeinfo has been installed and is modern enough diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac index c05fcdd..42c4530 100644 --- a/libstdc++-v3/configure.ac +++ b/libstdc++-v3/configure.ac @@ -538,6 +538,9 @@ GLIBCXX_CHECK_SIZE_T_MANGLING # Check which release added std::exception_ptr for the target GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER +# For libsupc++/eh_alloc.cc defaults. +GLIBCXX_EMERGENCY_EH_ALLOC + # Define documentation rules conditionally. # See if makeinfo has been installed and is modern enough diff --git a/libstdc++-v3/crossconfig.m4 b/libstdc++-v3/crossconfig.m4 index 130f47f..b3269cb 100644 --- a/libstdc++-v3/crossconfig.m4 +++ b/libstdc++-v3/crossconfig.m4 @@ -187,6 +187,7 @@ case "${host}" in AC_CHECK_FUNCS(timespec_get) AC_CHECK_FUNCS(sockatmark) AC_CHECK_FUNCS(uselocale) + AC_CHECK_FUNCS(secure_getenv) AM_ICONV ;; *-mingw32*) diff --git a/libstdc++-v3/doc/Makefile.in b/libstdc++-v3/doc/Makefile.in index 6aaceea..469a608 100644 --- a/libstdc++-v3/doc/Makefile.in +++ b/libstdc++-v3/doc/Makefile.in @@ -199,6 +199,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/doc/html/index.html b/libstdc++-v3/doc/html/index.html index 1e0cecb..ce951e6 100644 --- a/libstdc++-v3/doc/html/index.html +++ b/libstdc++-v3/doc/html/index.html @@ -23,7 +23,7 @@ </p></div></div></div><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="book"><a href="manual/index.html">The GNU C++ Library Manual</a></span></dt><dd><dl><dt><span class="part"><a href="manual/intro.html">I. Introduction -</a></span></dt><dd><dl><dt><span class="chapter"><a href="manual/status.html">1. Status</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#manual.intro.status.iso">Implementation Status</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#status.iso.1998">C++ 1998/2003</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.1998.status">Implementation Status</a></span></dt><dt><span class="section"><a href="manual/status.html#iso.1998.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2011.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2014.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2014.filesystemts">Filesystem TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2017.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2017.par2ts">Parallelism 2 TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span class="section"><a href="manual/status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span class="section"><a href="manual/status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.tr1.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span class="section"><a href="manual/status.html#status.iso.specfun">C++ IS 29124</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.specfun.specific">Implementation Specific Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="manual/license.html">License</a></span></dt><dd><dl><dt><span class="section"><a href="manual/license.html#manual.intro.status.license.gpl">The Code: GPL</a></span></dt><dt><span class="section"><a href="manual/license.html#manual.intro.status.license.fdl">The Documentation: GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a href="manual/bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a href="manual/bugs.html#manual.intro.status.bugs.impl">Implementation Bugs</a></span></dt><dt><span class="section"><a href="manual/bugs.html#manual.intro.status.bugs.iso">Standard Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="manual/setup.html">2. Setup</a></span></dt><dd><dl><dt><span class="section"><a href="manual/setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="manual/configure.html">Configure</a></span></dt><dt><span class="section"><a href="manual/make.html">Make</a></span></dt></dl></dd><dt><span class="chapter"><a href="manual/using.html">3. Using</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="manual/using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="manual/using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="manual/using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="manual/using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="manual/using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="manual/using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="manual/using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="manual/debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="manual/debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a href="manual/debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT allocators</a></span></dt></dl></dd><dt><span class="section"><a href="manual/debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="part"><a href="manual/std_contents.html">II. +</a></span></dt><dd><dl><dt><span class="chapter"><a href="manual/status.html">1. Status</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#manual.intro.status.iso">Implementation Status</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#status.iso.1998">C++ 1998/2003</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.1998.status">Implementation Status</a></span></dt><dt><span class="section"><a href="manual/status.html#iso.1998.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2011.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2014.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2014.filesystemts">Filesystem TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2017.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.2017.par2ts">Parallelism 2 TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span class="section"><a href="manual/status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span class="section"><a href="manual/status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.tr1.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="manual/status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span class="section"><a href="manual/status.html#status.iso.specfun">C++ IS 29124</a></span></dt><dd><dl><dt><span class="section"><a href="manual/status.html#iso.specfun.specific">Implementation Specific Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="manual/license.html">License</a></span></dt><dd><dl><dt><span class="section"><a href="manual/license.html#manual.intro.status.license.gpl">The Code: GPL</a></span></dt><dt><span class="section"><a href="manual/license.html#manual.intro.status.license.fdl">The Documentation: GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a href="manual/bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a href="manual/bugs.html#manual.intro.status.bugs.impl">Implementation Bugs</a></span></dt><dt><span class="section"><a href="manual/bugs.html#manual.intro.status.bugs.iso">Standard Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="manual/setup.html">2. Setup</a></span></dt><dd><dl><dt><span class="section"><a href="manual/setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="manual/configure.html">Configure</a></span></dt><dt><span class="section"><a href="manual/make.html">Make</a></span></dt></dl></dd><dt><span class="chapter"><a href="manual/using.html">3. Using</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="manual/using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="manual/using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="manual/using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="manual/using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="manual/using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="manual/using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="manual/using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="manual/using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="manual/using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.alloc">Memory allocation</a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="manual/using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="manual/using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="manual/debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="manual/debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a href="manual/debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT allocators</a></span></dt></dl></dd><dt><span class="section"><a href="manual/debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="manual/debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="part"><a href="manual/std_contents.html">II. Standard Contents </a></span></dt><dd><dl><dt><span class="chapter"><a href="manual/support.html">4. Support @@ -142,7 +142,7 @@ Existing tests </a></span></dt><dt><span class="section"><a href="manual/test.html#test.exception.safety.containers"> C++11 Requirements Test Sequence Descriptions -</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="manual/abi.html">ABI Policy and Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="manual/abi.html#abi.cxx_interface">The C++ Interface</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning">Versioning</a></span></dt><dd><dl><dt><span class="section"><a href="manual/abi.html#abi.versioning.goals">Goals</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning.history">History</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning.config">Configuring</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning.active">Checking Active</a></span></dt></dl></dd><dt><span class="section"><a href="manual/abi.html#abi.changes_allowed">Allowed Changes</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.changes_no">Prohibited Changes</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.impl">Implementation</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.testing">Testing</a></span></dt><dd><dl><dt><span class="section"><a href="manual/abi.html#abi.testing.single">Single ABI Testing</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.testing.multi">Multiple ABI Testing</a></span></dt></dl></dd><dt><span class="section"><a href="manual/abi.html#abi.issues">Outstanding Issues</a></span></dt></dl></dd><dt><span class="section"><a href="manual/api.html">API Evolution and Deprecation History</a></span></dt><dd><dl><dt><span class="section"><a href="manual/api.html#api.rel_300"><code class="constant">3.0</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_310"><code class="constant">3.1</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_320"><code class="constant">3.2</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_330"><code class="constant">3.3</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_340"><code class="constant">3.4</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_400"><code class="constant">4.0</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_410"><code class="constant">4.1</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_420"><code class="constant">4.2</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_430"><code class="constant">4.3</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_440"><code class="constant">4.4</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_450"><code class="constant">4.5</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_460"><code class="constant">4.6</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_470"><code class="constant">4.7</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_480"><code class="constant">4.8</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_490"><code class="constant">4.9</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_51"><code class="constant">5</code></a></span></dt><dd><dl><dt><span class="section"><a href="manual/api.html#api.rel_53"><code class="constant">5.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="manual/api.html#api.rel_61"><code class="constant">6</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_71"><code class="constant">7</code></a></span></dt><dd><dl><dt><span class="section"><a href="manual/api.html#api.rel_72"><code class="constant">7.2</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_73"><code class="constant">7.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="manual/api.html#api.rel_81"><code class="constant">8</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_91"><code class="constant">9</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_101"><code class="constant">10</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_111"><code class="constant">11</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_121"><code class="constant">12</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_123"><code class="constant">12.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="manual/backwards.html">Backwards Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="manual/backwards.html#backwards.first">First</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second">Second</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="manual/backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>. +</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="manual/abi.html">ABI Policy and Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="manual/abi.html#abi.cxx_interface">The C++ Interface</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning">Versioning</a></span></dt><dd><dl><dt><span class="section"><a href="manual/abi.html#abi.versioning.goals">Goals</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning.history">History</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning.config">Configuring</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.versioning.active">Checking Active</a></span></dt></dl></dd><dt><span class="section"><a href="manual/abi.html#abi.changes_allowed">Allowed Changes</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.changes_no">Prohibited Changes</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.impl">Implementation</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.testing">Testing</a></span></dt><dd><dl><dt><span class="section"><a href="manual/abi.html#abi.testing.single">Single ABI Testing</a></span></dt><dt><span class="section"><a href="manual/abi.html#abi.testing.multi">Multiple ABI Testing</a></span></dt></dl></dd><dt><span class="section"><a href="manual/abi.html#abi.issues">Outstanding Issues</a></span></dt></dl></dd><dt><span class="section"><a href="manual/api.html">API Evolution and Deprecation History</a></span></dt><dd><dl><dt><span class="section"><a href="manual/api.html#api.rel_300"><code class="constant">3.0</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_310"><code class="constant">3.1</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_320"><code class="constant">3.2</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_330"><code class="constant">3.3</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_340"><code class="constant">3.4</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_400"><code class="constant">4.0</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_410"><code class="constant">4.1</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_420"><code class="constant">4.2</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_430"><code class="constant">4.3</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_440"><code class="constant">4.4</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_450"><code class="constant">4.5</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_460"><code class="constant">4.6</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_470"><code class="constant">4.7</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_480"><code class="constant">4.8</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_490"><code class="constant">4.9</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_51"><code class="constant">5</code></a></span></dt><dd><dl><dt><span class="section"><a href="manual/api.html#api.rel_53"><code class="constant">5.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="manual/api.html#api.rel_61"><code class="constant">6</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_71"><code class="constant">7</code></a></span></dt><dd><dl><dt><span class="section"><a href="manual/api.html#api.rel_72"><code class="constant">7.2</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_73"><code class="constant">7.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="manual/api.html#api.rel_81"><code class="constant">8</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_91"><code class="constant">9</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_101"><code class="constant">10</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_111"><code class="constant">11</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_121"><code class="constant">12</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_123"><code class="constant">12.3</code></a></span></dt><dt><span class="section"><a href="manual/api.html#api.rel_131"><code class="constant">13</code></a></span></dt></dl></dd><dt><span class="section"><a href="manual/backwards.html">Backwards Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="manual/backwards.html#backwards.first">First</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.second">Second</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="manual/backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>. </a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.streamattach"> No <code class="code">stream::attach(int fd)</code> </a></span></dt><dt><span class="section"><a href="manual/backwards.html#backwards.third.support_cxx98"> diff --git a/libstdc++-v3/doc/html/manual/api.html b/libstdc++-v3/doc/html/manual/api.html index 604380e..d985767 100644 --- a/libstdc++-v3/doc/html/manual/api.html +++ b/libstdc++-v3/doc/html/manual/api.html @@ -473,4 +473,7 @@ the process. </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="api.rel_123"></a><code class="constant">12.3</code></h3></div></div></div><p> Calling a <code class="code">std::bind</code> result as volatile is ill-formed for C++20 and later. +</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="api.rel_131"></a><code class="constant">13</code></h3></div></div></div><p> +Tunables <span style="color: red"><variable>glibcxx.eh_pool.obj_count</variable></span> and +<span style="color: red"><variable>glibcxx.eh_pool.obj_size</variable></span> were added. </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="abi.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="appendix_porting.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="backwards.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">ABI Policy and Guidelines </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Backwards Compatibility</td></tr></table></div></body></html>
\ No newline at end of file diff --git a/libstdc++-v3/doc/html/manual/appendix.html b/libstdc++-v3/doc/html/manual/appendix.html index c563372..3f8bac0 100644 --- a/libstdc++-v3/doc/html/manual/appendix.html +++ b/libstdc++-v3/doc/html/manual/appendix.html @@ -16,7 +16,7 @@ Existing tests </a></span></dt><dt><span class="section"><a href="test.html#test.exception.safety.containers"> C++11 Requirements Test Sequence Descriptions -</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="abi.html">ABI Policy and Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.cxx_interface">The C++ Interface</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning">Versioning</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.versioning.goals">Goals</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.history">History</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.config">Configuring</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.active">Checking Active</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.changes_allowed">Allowed Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.changes_no">Prohibited Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.impl">Implementation</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing">Testing</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.testing.single">Single ABI Testing</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing.multi">Multiple ABI Testing</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.issues">Outstanding Issues</a></span></dt></dl></dd><dt><span class="section"><a href="api.html">API Evolution and Deprecation History</a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_300"><code class="constant">3.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_310"><code class="constant">3.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_320"><code class="constant">3.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_330"><code class="constant">3.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_340"><code class="constant">3.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_400"><code class="constant">4.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_410"><code class="constant">4.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_420"><code class="constant">4.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_430"><code class="constant">4.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_440"><code class="constant">4.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_450"><code class="constant">4.5</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_460"><code class="constant">4.6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_470"><code class="constant">4.7</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_480"><code class="constant">4.8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_490"><code class="constant">4.9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_51"><code class="constant">5</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_53"><code class="constant">5.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_61"><code class="constant">6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_71"><code class="constant">7</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_72"><code class="constant">7.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_73"><code class="constant">7.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_81"><code class="constant">8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_91"><code class="constant">9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_101"><code class="constant">10</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_111"><code class="constant">11</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_121"><code class="constant">12</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_123"><code class="constant">12.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html">Backwards Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.first">First</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second">Second</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>. +</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="abi.html">ABI Policy and Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.cxx_interface">The C++ Interface</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning">Versioning</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.versioning.goals">Goals</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.history">History</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.config">Configuring</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.active">Checking Active</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.changes_allowed">Allowed Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.changes_no">Prohibited Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.impl">Implementation</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing">Testing</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.testing.single">Single ABI Testing</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing.multi">Multiple ABI Testing</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.issues">Outstanding Issues</a></span></dt></dl></dd><dt><span class="section"><a href="api.html">API Evolution and Deprecation History</a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_300"><code class="constant">3.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_310"><code class="constant">3.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_320"><code class="constant">3.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_330"><code class="constant">3.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_340"><code class="constant">3.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_400"><code class="constant">4.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_410"><code class="constant">4.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_420"><code class="constant">4.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_430"><code class="constant">4.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_440"><code class="constant">4.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_450"><code class="constant">4.5</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_460"><code class="constant">4.6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_470"><code class="constant">4.7</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_480"><code class="constant">4.8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_490"><code class="constant">4.9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_51"><code class="constant">5</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_53"><code class="constant">5.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_61"><code class="constant">6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_71"><code class="constant">7</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_72"><code class="constant">7.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_73"><code class="constant">7.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_81"><code class="constant">8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_91"><code class="constant">9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_101"><code class="constant">10</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_111"><code class="constant">11</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_121"><code class="constant">12</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_123"><code class="constant">12.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_131"><code class="constant">13</code></a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html">Backwards Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.first">First</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second">Second</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>. </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.streamattach"> No <code class="code">stream::attach(int fd)</code> </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.support_cxx98"> diff --git a/libstdc++-v3/doc/html/manual/appendix_porting.html b/libstdc++-v3/doc/html/manual/appendix_porting.html index 55d3f23..4b3f069 100644 --- a/libstdc++-v3/doc/html/manual/appendix_porting.html +++ b/libstdc++-v3/doc/html/manual/appendix_porting.html @@ -14,7 +14,7 @@ Existing tests </a></span></dt><dt><span class="section"><a href="test.html#test.exception.safety.containers"> C++11 Requirements Test Sequence Descriptions -</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="abi.html">ABI Policy and Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.cxx_interface">The C++ Interface</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning">Versioning</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.versioning.goals">Goals</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.history">History</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.config">Configuring</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.active">Checking Active</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.changes_allowed">Allowed Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.changes_no">Prohibited Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.impl">Implementation</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing">Testing</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.testing.single">Single ABI Testing</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing.multi">Multiple ABI Testing</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.issues">Outstanding Issues</a></span></dt></dl></dd><dt><span class="section"><a href="api.html">API Evolution and Deprecation History</a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_300"><code class="constant">3.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_310"><code class="constant">3.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_320"><code class="constant">3.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_330"><code class="constant">3.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_340"><code class="constant">3.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_400"><code class="constant">4.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_410"><code class="constant">4.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_420"><code class="constant">4.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_430"><code class="constant">4.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_440"><code class="constant">4.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_450"><code class="constant">4.5</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_460"><code class="constant">4.6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_470"><code class="constant">4.7</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_480"><code class="constant">4.8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_490"><code class="constant">4.9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_51"><code class="constant">5</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_53"><code class="constant">5.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_61"><code class="constant">6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_71"><code class="constant">7</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_72"><code class="constant">7.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_73"><code class="constant">7.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_81"><code class="constant">8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_91"><code class="constant">9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_101"><code class="constant">10</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_111"><code class="constant">11</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_121"><code class="constant">12</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_123"><code class="constant">12.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html">Backwards Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.first">First</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second">Second</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>. +</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="abi.html">ABI Policy and Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.cxx_interface">The C++ Interface</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning">Versioning</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.versioning.goals">Goals</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.history">History</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.config">Configuring</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.active">Checking Active</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.changes_allowed">Allowed Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.changes_no">Prohibited Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.impl">Implementation</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing">Testing</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.testing.single">Single ABI Testing</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing.multi">Multiple ABI Testing</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.issues">Outstanding Issues</a></span></dt></dl></dd><dt><span class="section"><a href="api.html">API Evolution and Deprecation History</a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_300"><code class="constant">3.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_310"><code class="constant">3.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_320"><code class="constant">3.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_330"><code class="constant">3.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_340"><code class="constant">3.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_400"><code class="constant">4.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_410"><code class="constant">4.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_420"><code class="constant">4.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_430"><code class="constant">4.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_440"><code class="constant">4.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_450"><code class="constant">4.5</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_460"><code class="constant">4.6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_470"><code class="constant">4.7</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_480"><code class="constant">4.8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_490"><code class="constant">4.9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_51"><code class="constant">5</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_53"><code class="constant">5.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_61"><code class="constant">6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_71"><code class="constant">7</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_72"><code class="constant">7.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_73"><code class="constant">7.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_81"><code class="constant">8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_91"><code class="constant">9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_101"><code class="constant">10</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_111"><code class="constant">11</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_121"><code class="constant">12</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_123"><code class="constant">12.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_131"><code class="constant">13</code></a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html">Backwards Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.first">First</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second">Second</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>. </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.streamattach"> No <code class="code">stream::attach(int fd)</code> </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.support_cxx98"> diff --git a/libstdc++-v3/doc/html/manual/configure.html b/libstdc++-v3/doc/html/manual/configure.html index 31c4da8..66adc7d 100644 --- a/libstdc++-v3/doc/html/manual/configure.html +++ b/libstdc++-v3/doc/html/manual/configure.html @@ -220,7 +220,7 @@ <span class="emphasis"><em>freestanding</em></span> environment, in which only a minimal set of headers are provided. This option builds such an environment. - </p></dd><dt><span class="term"><code class="code">--disable-libstdcxx-verbose</code></span></dt><dd><p> + </p></dd><dt><span class="term"><code class="code">--disable-libstdcxx-hosted</code></span></dt><dd><p>This is an alias for <code class="code">--disable-hosted-libstdcxx</code>.</p></dd><dt><span class="term"><code class="code">--disable-libstdcxx-verbose</code></span></dt><dd><p> By default, the library is configured to write descriptive messages to standard error for certain events such as calling a pure virtual function or the invocation of the standard terminate handler. Those @@ -271,4 +271,12 @@ as the usual libstdc++ and libsupc++ libraries. This is enabled by default on select POSIX targets where it is known to work and disabled otherwise. + </p></dd><dt><span class="term"><code class="code">--enable-libstdcxx-static-eh-pool</code></span></dt><dd><p>Use a fixed-size static buffer for the emergency exception handling + pool (see <a class="xref" href="using_exceptions.html#intro.using.exception.alloc" title="Memory allocation">Memory allocation for exceptions</a>). The default + is to allocate the pool on program startup using <code class="code">malloc</code>. + With this option, a static buffer will be provided by libstdc++ instead. + This does not change the library ABI. + </p></dd><dt><span class="term"><code class="code">--with-libstdcxx-eh-pool-obj-count=NUM</code></span></dt><dd><p>Set the size of the emergency exception handling pool. NUM is the + number of simultaneous allocated exceptions to support. + This does not change the library ABI. </p></dd></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="setup.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="setup.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="make.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 2. Setup </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Make</td></tr></table></div></body></html>
\ No newline at end of file diff --git a/libstdc++-v3/doc/html/manual/index.html b/libstdc++-v3/doc/html/manual/index.html index 2949509..292afde 100644 --- a/libstdc++-v3/doc/html/manual/index.html +++ b/libstdc++-v3/doc/html/manual/index.html @@ -4,7 +4,7 @@ </p></div></div><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="part"><a href="intro.html">I. Introduction -</a></span></dt><dd><dl><dt><span class="chapter"><a href="status.html">1. Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#manual.intro.status.iso">Implementation Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#status.iso.1998">C++ 1998/2003</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.1998.status">Implementation Status</a></span></dt><dt><span class="section"><a href="status.html#iso.1998.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2011.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2014.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2014.filesystemts">Filesystem TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2017.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2017.par2ts">Parallelism 2 TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span class="section"><a href="status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span class="section"><a href="status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.tr1.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span class="section"><a href="status.html#status.iso.specfun">C++ IS 29124</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.specfun.specific">Implementation Specific Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a href="license.html#manual.intro.status.license.gpl">The Code: GPL</a></span></dt><dt><span class="section"><a href="license.html#manual.intro.status.license.fdl">The Documentation: GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.impl">Implementation Bugs</a></span></dt><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.iso">Standard Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="setup.html">2. Setup</a></span></dt><dd><dl><dt><span class="section"><a href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="configure.html">Configure</a></span></dt><dt><span class="section"><a href="make.html">Make</a></span></dt></dl></dd><dt><span class="chapter"><a href="using.html">3. Using</a></span></dt><dd><dl><dt><span class="section"><a href="using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT allocators</a></span></dt></dl></dd><dt><span class="section"><a href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="part"><a href="std_contents.html">II. +</a></span></dt><dd><dl><dt><span class="chapter"><a href="status.html">1. Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#manual.intro.status.iso">Implementation Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#status.iso.1998">C++ 1998/2003</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.1998.status">Implementation Status</a></span></dt><dt><span class="section"><a href="status.html#iso.1998.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2011.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2014.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2014.filesystemts">Filesystem TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2017.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2017.par2ts">Parallelism 2 TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span class="section"><a href="status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span class="section"><a href="status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.tr1.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span class="section"><a href="status.html#status.iso.specfun">C++ IS 29124</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.specfun.specific">Implementation Specific Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a href="license.html#manual.intro.status.license.gpl">The Code: GPL</a></span></dt><dt><span class="section"><a href="license.html#manual.intro.status.license.fdl">The Documentation: GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.impl">Implementation Bugs</a></span></dt><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.iso">Standard Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="setup.html">2. Setup</a></span></dt><dd><dl><dt><span class="section"><a href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="configure.html">Configure</a></span></dt><dt><span class="section"><a href="make.html">Make</a></span></dt></dl></dd><dt><span class="chapter"><a href="using.html">3. Using</a></span></dt><dd><dl><dt><span class="section"><a href="using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.alloc">Memory allocation</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT allocators</a></span></dt></dl></dd><dt><span class="section"><a href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="part"><a href="std_contents.html">II. Standard Contents </a></span></dt><dd><dl><dt><span class="chapter"><a href="support.html">4. Support @@ -123,7 +123,7 @@ Existing tests </a></span></dt><dt><span class="section"><a href="test.html#test.exception.safety.containers"> C++11 Requirements Test Sequence Descriptions -</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="abi.html">ABI Policy and Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.cxx_interface">The C++ Interface</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning">Versioning</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.versioning.goals">Goals</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.history">History</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.config">Configuring</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.active">Checking Active</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.changes_allowed">Allowed Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.changes_no">Prohibited Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.impl">Implementation</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing">Testing</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.testing.single">Single ABI Testing</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing.multi">Multiple ABI Testing</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.issues">Outstanding Issues</a></span></dt></dl></dd><dt><span class="section"><a href="api.html">API Evolution and Deprecation History</a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_300"><code class="constant">3.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_310"><code class="constant">3.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_320"><code class="constant">3.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_330"><code class="constant">3.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_340"><code class="constant">3.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_400"><code class="constant">4.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_410"><code class="constant">4.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_420"><code class="constant">4.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_430"><code class="constant">4.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_440"><code class="constant">4.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_450"><code class="constant">4.5</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_460"><code class="constant">4.6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_470"><code class="constant">4.7</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_480"><code class="constant">4.8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_490"><code class="constant">4.9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_51"><code class="constant">5</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_53"><code class="constant">5.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_61"><code class="constant">6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_71"><code class="constant">7</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_72"><code class="constant">7.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_73"><code class="constant">7.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_81"><code class="constant">8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_91"><code class="constant">9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_101"><code class="constant">10</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_111"><code class="constant">11</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_121"><code class="constant">12</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_123"><code class="constant">12.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html">Backwards Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.first">First</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second">Second</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>. +</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="abi.html">ABI Policy and Guidelines</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.cxx_interface">The C++ Interface</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning">Versioning</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.versioning.goals">Goals</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.history">History</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.config">Configuring</a></span></dt><dt><span class="section"><a href="abi.html#abi.versioning.active">Checking Active</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.changes_allowed">Allowed Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.changes_no">Prohibited Changes</a></span></dt><dt><span class="section"><a href="abi.html#abi.impl">Implementation</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing">Testing</a></span></dt><dd><dl><dt><span class="section"><a href="abi.html#abi.testing.single">Single ABI Testing</a></span></dt><dt><span class="section"><a href="abi.html#abi.testing.multi">Multiple ABI Testing</a></span></dt></dl></dd><dt><span class="section"><a href="abi.html#abi.issues">Outstanding Issues</a></span></dt></dl></dd><dt><span class="section"><a href="api.html">API Evolution and Deprecation History</a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_300"><code class="constant">3.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_310"><code class="constant">3.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_320"><code class="constant">3.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_330"><code class="constant">3.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_340"><code class="constant">3.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_400"><code class="constant">4.0</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_410"><code class="constant">4.1</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_420"><code class="constant">4.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_430"><code class="constant">4.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_440"><code class="constant">4.4</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_450"><code class="constant">4.5</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_460"><code class="constant">4.6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_470"><code class="constant">4.7</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_480"><code class="constant">4.8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_490"><code class="constant">4.9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_51"><code class="constant">5</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_53"><code class="constant">5.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_61"><code class="constant">6</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_71"><code class="constant">7</code></a></span></dt><dd><dl><dt><span class="section"><a href="api.html#api.rel_72"><code class="constant">7.2</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_73"><code class="constant">7.3</code></a></span></dt></dl></dd><dt><span class="section"><a href="api.html#api.rel_81"><code class="constant">8</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_91"><code class="constant">9</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_101"><code class="constant">10</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_111"><code class="constant">11</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_121"><code class="constant">12</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_123"><code class="constant">12.3</code></a></span></dt><dt><span class="section"><a href="api.html#api.rel_131"><code class="constant">13</code></a></span></dt></dl></dd><dt><span class="section"><a href="backwards.html">Backwards Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.first">First</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.second">Second</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third">Third</a></span></dt><dd><dl><dt><span class="section"><a href="backwards.html#backwards.third.headers">Pre-ISO headers removed</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.hash">Extension headers hash_map, hash_set moved to ext or backwards</a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.nocreate_noreplace">No <code class="code">ios::nocreate/ios::noreplace</code>. </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.streamattach"> No <code class="code">stream::attach(int fd)</code> </a></span></dt><dt><span class="section"><a href="backwards.html#backwards.third.support_cxx98"> diff --git a/libstdc++-v3/doc/html/manual/intro.html b/libstdc++-v3/doc/html/manual/intro.html index 1a82344..3027cb6 100644 --- a/libstdc++-v3/doc/html/manual/intro.html +++ b/libstdc++-v3/doc/html/manual/intro.html @@ -5,4 +5,4 @@ </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><th width="60%" align="center">The GNU C++ Library Manual</th><td width="20%" align="right"> <a accesskey="n" href="status.html">Next</a></td></tr></table><hr /></div><div class="part"><div class="titlepage"><div><div><h1 class="title"><a id="manual.intro"></a>Part I. Introduction <a id="id-1.3.3.1.1.1" class="indexterm"></a> -</h1></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="chapter"><a href="status.html">1. Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#manual.intro.status.iso">Implementation Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#status.iso.1998">C++ 1998/2003</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.1998.status">Implementation Status</a></span></dt><dt><span class="section"><a href="status.html#iso.1998.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2011.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2014.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2014.filesystemts">Filesystem TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2017.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2017.par2ts">Parallelism 2 TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span class="section"><a href="status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span class="section"><a href="status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.tr1.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span class="section"><a href="status.html#status.iso.specfun">C++ IS 29124</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.specfun.specific">Implementation Specific Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a href="license.html#manual.intro.status.license.gpl">The Code: GPL</a></span></dt><dt><span class="section"><a href="license.html#manual.intro.status.license.fdl">The Documentation: GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.impl">Implementation Bugs</a></span></dt><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.iso">Standard Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="setup.html">2. Setup</a></span></dt><dd><dl><dt><span class="section"><a href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="configure.html">Configure</a></span></dt><dt><span class="section"><a href="make.html">Make</a></span></dt></dl></dd><dt><span class="chapter"><a href="using.html">3. Using</a></span></dt><dd><dl><dt><span class="section"><a href="using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT allocators</a></span></dt></dl></dd><dt><span class="section"><a href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt></dl></dd></dl></dd></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="status.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">The GNU C++ Library Manual </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 1. Status</td></tr></table></div></body></html>
\ No newline at end of file +</h1></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="chapter"><a href="status.html">1. Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#manual.intro.status.iso">Implementation Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#status.iso.1998">C++ 1998/2003</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.1998.status">Implementation Status</a></span></dt><dt><span class="section"><a href="status.html#iso.1998.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2011.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2014.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2014.filesystemts">Filesystem TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2017.specific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2017.par2ts">Parallelism 2 TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span class="section"><a href="status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span class="section"><a href="status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.tr1.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span class="section"><a href="status.html#status.iso.specfun">C++ IS 29124</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.specfun.specific">Implementation Specific Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a href="license.html#manual.intro.status.license.gpl">The Code: GPL</a></span></dt><dt><span class="section"><a href="license.html#manual.intro.status.license.fdl">The Documentation: GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.impl">Implementation Bugs</a></span></dt><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.iso">Standard Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="setup.html">2. Setup</a></span></dt><dd><dl><dt><span class="section"><a href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="configure.html">Configure</a></span></dt><dt><span class="section"><a href="make.html">Make</a></span></dt></dl></dd><dt><span class="chapter"><a href="using.html">3. Using</a></span></dt><dd><dl><dt><span class="section"><a href="using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.alloc">Memory allocation</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT allocators</a></span></dt></dl></dd><dt><span class="section"><a href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt></dl></dd></dl></dd></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="status.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">The GNU C++ Library Manual </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 1. 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\ No newline at end of file diff --git a/libstdc++-v3/doc/html/manual/using.html b/libstdc++-v3/doc/html/manual/using.html index 08facff..f2dc207 100644 --- a/libstdc++-v3/doc/html/manual/using.html +++ b/libstdc++-v3/doc/html/manual/using.html @@ -2,7 +2,7 @@ <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 3. Using</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="intro.html" title="Part I. Introduction" /><link rel="prev" href="make.html" title="Make" /><link rel="next" href="using_headers.html" title="Headers" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 3. Using</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="make.html">Prev</a> </td><th width="60%" align="center">Part I. Introduction -</th><td width="20%" align="right"> <a accesskey="n" href="using_headers.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.intro.using"></a>Chapter 3. Using</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT allocators</a></span></dt></dl></dd><dt><span class="section"><a href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt></dl></dd></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.flags"></a>Command Options</h2></div></div></div><p> +</th><td width="20%" align="right"> <a accesskey="n" href="using_headers.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.intro.using"></a>Chapter 3. Using</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.alloc">Memory allocation</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT allocators</a></span></dt></dl></dd><dt><span class="section"><a href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt></dl></dd></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.flags"></a>Command Options</h2></div></div></div><p> The set of features available in the GNU C++ library is shaped by several <a class="link" href="http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Invoking-GCC.html" target="_top">GCC Command Options</a>. Options that impact libstdc++ are diff --git a/libstdc++-v3/doc/html/manual/using_exceptions.html b/libstdc++-v3/doc/html/manual/using_exceptions.html index 3ae0bea..88bc05d 100644 --- a/libstdc++-v3/doc/html/manual/using_exceptions.html +++ b/libstdc++-v3/doc/html/manual/using_exceptions.html @@ -100,7 +100,62 @@ exception neutrality and exception safety. The constructors of <code class="classname">thread</code> that take a callable function argument swallow all exceptions resulting from executing the function argument. - </p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="intro.using.exception.no"></a>Doing without</h3></div></div></div><p> + </p></li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="intro.using.exception.alloc"></a>Memory allocation</h3></div></div></div><p> + When the program throws an exception the runtime will obtain storage for + a <code class="code">__cxa_exception</code> header and the thrown object itself. + Libstdc++ will try to use <code class="code">malloc</code> to obtain storage, + but provides an emergency buffer to be used if malloc fails, + as described by the <a class="link" href="https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html#imp-emergency" target="_top">Itanium + exception handling ABI</a>. + </p><p> + Contrary to the ABI, the libstdc++ emergency buffer is not always 64kB, + and does not always allocate 1kB chunks. The buffer is used as a pool for + variable-sized allocations, so that it doesn't waste space for smaller + exception objects such as <code class="code">std::bad_alloc</code>. + The total size of the buffer is scaled appropriately for the target. + Specifically it depends on <code class="code">sizeof(void*)</code>, so that a 64-bit + system uses a larger pool than a 32-bit system. This is done because for + 32-bit systems the exception objects (and the exception header) require + less space, and core counts and thread counts are typically lower as well. + </p><p> + By default, libstdc++ will use <code class="code">malloc</code> to allocate the buffer + on program startup. + <a class="xref" href="configure.html" title="Configure">Configuring</a> libstdc++ with the + <code class="code">--enable-libstdcxx-static-eh-pool</code> option will make it + use a static buffer instead of using <code class="code">malloc</code>. + </p><p> + The buffer size is chosen automatically, but can be overridden + by configuring with <code class="code">--with-libstdcxx-eh-pool-obj-count=NUM</code>, + where <code class="code">NUM</code> is the number of simultaneous allocations that + should be supported. The size of the pool will be sufficient for + <code class="code">NUM</code> exceptions of <code class="code">6 * sizeof(void*)</code> bytes, + plus another <code class="code">NUM</code> exceptions captured in + <code class="classname">std::exception_ptr</code> and rethrown using + <code class="code">std::rethrow_exception</code>. The buffer size determined by the + obj-count value applies whether the buffer is reserved as static storage + or is allocated dynamically. + Setting obj-count to zero will disable the pool, so that no emergency + buffer is present. + </p><p> + For a dynamic buffer, the default size can also be changed at runtime, + per-process, via the <code class="literal">GLIBCXX_TUNABLES</code> environment + variable. + The <code class="literal">GLIBCXX_TUNABLES</code> environment variable should be + a string of colon-separated <span class="emphasis"><em>name=value</em></span> pairs. The + following names will be recognized, with the specified semantics: + </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="code">glibcxx.eh_pool.obj_count</code></span></dt><dd> + The number of exception objects to provide space for in the pool. + The value must be a non-negative integer and has the same meaning as the + <code class="code">--with-libstdcxx-eh-pool-obj-count</code> option for + <code class="filename">configure</code>. + </dd><dt><span class="term"><code class="code">glibcxx.eh_pool.obj_size</code></span></dt><dd> + The expected size of exception objects that the pool might get used for. + The value must be a positive integer, and is measured in units of + <code class="code">sizeof(void*)</code>. The default value is <code class="literal">6</code> + which is large enough to store any exception type thrown by libstdc++. + Exceptions larger than this can still be allocated from the pool, + but larger exceptions will exhaust the pool more rapidly. + </dd></dl></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="intro.using.exception.no"></a>Doing without</h3></div></div></div><p> C++ is a language that strives to be as efficient as is possible in delivering features. As such, considerable care is used by both language implementer and designers to make sure unused features @@ -265,7 +320,7 @@ is called. } catch(...) { this->_M_setstate(ios_base::badbit); } -</pre></div></div><div class="bibliography"><div class="titlepage"><div><div><h3 class="title"><a id="using.exceptions.biblio"></a>Bibliography</h3></div></div></div><div class="biblioentry"><a id="id-1.3.3.4.9.9.2"></a><p><span class="title"><em> +</pre></div></div><div class="bibliography"><div class="titlepage"><div><div><h3 class="title"><a id="using.exceptions.biblio"></a>Bibliography</h3></div></div></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.2"></a><p><span class="title"><em> <a class="link" href="http://www.opengroup.org/austin/" target="_top"> System Interface Definitions, Issue 7 (IEEE Std. 1003.1-2008) </a> @@ -274,40 +329,44 @@ is called. . </span><span class="copyright">Copyright © 2008 The Open Group/The Institute of Electrical and Electronics Engineers, Inc. - . </span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.9.3"></a><p><span class="title"><em> + . </span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.3"></a><p><span class="title"><em> <a class="link" href="https://www.boost.org/community/error_handling.html" target="_top"> Error and Exception Handling </a> </em>. </span><span class="author"><span class="firstname">David</span> <span class="surname">Abrahams </span>. </span><span class="publisher"><span class="publishername"> Boost - . </span></span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.9.4"></a><p><span class="title"><em> + . </span></span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.4"></a><p><span class="title"><em> <a class="link" href="https://www.boost.org/community/exception_safety.html" target="_top"> Exception-Safety in Generic Components </a> </em>. </span><span class="author"><span class="firstname">David</span> <span class="surname">Abrahams</span>. </span><span class="publisher"><span class="publishername"> Boost - . </span></span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.9.5"></a><p><span class="title"><em> + . </span></span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.5"></a><p><span class="title"><em> <a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/1997/N1077.pdf" target="_top"> Standard Library Exception Policy </a> </em>. </span><span class="author"><span class="firstname">Matt</span> <span class="surname">Austern</span>. </span><span class="publisher"><span class="publishername"> WG21 N1077 - . </span></span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.9.6"></a><p><span class="title"><em> + . </span></span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.6"></a><p><span class="title"><em> <a class="link" href="http://gcc.gnu.org/ml/gcc-patches/2001-03/msg00661.html" target="_top"> ia64 c++ abi exception handling </a> </em>. </span><span class="author"><span class="firstname">Richard</span> <span class="surname">Henderson</span>. </span><span class="publisher"><span class="publishername"> GNU - . </span></span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.9.7"></a><p><span class="title"><em> + . </span></span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.7"></a><p><span class="title"><em> <a class="link" href="https://www.stroustrup.com/3rd_safe.pdf" target="_top"> Appendix E: Standard-Library Exception Safety </a> - </em>. </span><span class="author"><span class="firstname">Bjarne</span> <span class="surname">Stroustrup</span>. </span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.9.8"></a><p><span class="citetitle"><em class="citetitle"> + </em>. </span><span class="author"><span class="firstname">Bjarne</span> <span class="surname">Stroustrup</span>. </span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.8"></a><p><span class="citetitle"><em class="citetitle"> Exceptional C++ </em>. </span><span class="pagenums"> Exception-Safety Issues and Techniques - . </span><span class="author"><span class="firstname">Herb</span> <span class="surname">Sutter</span>. </span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.9.9"></a><p><span class="title"><em> + . </span><span class="author"><span class="firstname">Herb</span> <span class="surname">Sutter</span>. </span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.9"></a><p><span class="title"><em> <a class="link" href="http://gcc.gnu.org/PR25191" target="_top"> GCC Bug 25191: exception_defines.h #defines try/catch </a> + </em>. </span></p></div><div class="biblioentry"><a id="id-1.3.3.4.9.10.10"></a><p><span class="title"><em> + <a class="link" href="https://www.gnu.org/software/libc/manual/html_node/Tunables.html" target="_top"> + Tunables, The GNU C Library + </a> </em>. </span></p></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="using_concurrency.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="using.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="debug.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Concurrency </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Debugging Support</td></tr></table></div></body></html>
\ No newline at end of file diff --git a/libstdc++-v3/doc/xml/manual/configure.xml b/libstdc++-v3/doc/xml/manual/configure.xml index 8c26acc..c6c5981 100644 --- a/libstdc++-v3/doc/xml/manual/configure.xml +++ b/libstdc++-v3/doc/xml/manual/configure.xml @@ -366,6 +366,11 @@ </para> </listitem></varlistentry> + <varlistentry><term><code>--disable-libstdcxx-hosted</code></term> + <listitem> + <para>This is an alias for <code>--disable-hosted-libstdcxx</code>.</para> + </listitem></varlistentry> + <varlistentry><term><code>--disable-libstdcxx-verbose</code></term> <listitem> <para> @@ -446,6 +451,24 @@ </para> </listitem></varlistentry> + <varlistentry><term><code>--enable-libstdcxx-static-eh-pool</code></term> + <listitem> + <para>Use a fixed-size static buffer for the emergency exception handling + pool (see <xref linkend="intro.using.exception.alloc"/>). The default + is to allocate the pool on program startup using <code>malloc</code>. + With this option, a static buffer will be provided by libstdc++ instead. + This does not change the library ABI. + </para> + </listitem></varlistentry> + + <varlistentry><term><code>--with-libstdcxx-eh-pool-obj-count=NUM</code></term> + <listitem> + <para>Set the size of the emergency exception handling pool. NUM is the + number of simultaneous allocated exceptions to support. + This does not change the library ABI. + </para> + </listitem></varlistentry> + </variablelist> </section> diff --git a/libstdc++-v3/doc/xml/manual/evolution.xml b/libstdc++-v3/doc/xml/manual/evolution.xml index 8293618..a29e4df 100644 --- a/libstdc++-v3/doc/xml/manual/evolution.xml +++ b/libstdc++-v3/doc/xml/manual/evolution.xml @@ -1080,4 +1080,13 @@ and later. </section> +<section xml:id="api.rel_131"><info><title><constant>13</constant></title></info> + +<para> +Tunables <variable>glibcxx.eh_pool.obj_count</variable> and +<variable>glibcxx.eh_pool.obj_size</variable> were added. +</para> + +</section> + </section> diff --git a/libstdc++-v3/doc/xml/manual/using_exceptions.xml b/libstdc++-v3/doc/xml/manual/using_exceptions.xml index 32bff85..47dedc1 100644 --- a/libstdc++-v3/doc/xml/manual/using_exceptions.xml +++ b/libstdc++-v3/doc/xml/manual/using_exceptions.xml @@ -188,6 +188,87 @@ exception neutrality and exception safety. </section> +<section xml:id="intro.using.exception.alloc" xreflabel="Memory allocation for exceptions"><info><title>Memory allocation</title></info> + + <para> + When the program throws an exception the runtime will obtain storage for + a <code>__cxa_exception</code> header and the thrown object itself. + Libstdc++ will try to use <code>malloc</code> to obtain storage, + but provides an emergency buffer to be used if malloc fails, + as described by the <link xmlns:xlink="http://www.w3.org/1999/xlink" + xlink:href="https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html#imp-emergency">Itanium + exception handling ABI</link>. + </para> + + <para> + Contrary to the ABI, the libstdc++ emergency buffer is not always 64kB, + and does not always allocate 1kB chunks. The buffer is used as a pool for + variable-sized allocations, so that it doesn't waste space for smaller + exception objects such as <code>std::bad_alloc</code>. + The total size of the buffer is scaled appropriately for the target. + Specifically it depends on <code>sizeof(void*)</code>, so that a 64-bit + system uses a larger pool than a 32-bit system. This is done because for + 32-bit systems the exception objects (and the exception header) require + less space, and core counts and thread counts are typically lower as well. + </para> + + <para> + By default, libstdc++ will use <code>malloc</code> to allocate the buffer + on program startup. + <xref linkend="manual.intro.setup.configure"/> libstdc++ with the + <code>--enable-libstdcxx-static-eh-pool</code> option will make it + use a static buffer instead of using <code>malloc</code>. + </para> + + <para> + The buffer size is chosen automatically, but can be overridden + by configuring with <code>--with-libstdcxx-eh-pool-obj-count=NUM</code>, + where <code>NUM</code> is the number of simultaneous allocations that + should be supported. The size of the pool will be sufficient for + <code>NUM</code> exceptions of <code>6 * sizeof(void*)</code> bytes, + plus another <code>NUM</code> exceptions captured in + <classname>std::exception_ptr</classname> and rethrown using + <code>std::rethrow_exception</code>. The buffer size determined by the + obj-count value applies whether the buffer is reserved as static storage + or is allocated dynamically. + Setting obj-count to zero will disable the pool, so that no emergency + buffer is present. + </para> + + <para> + For a dynamic buffer, the default size can also be changed at runtime, + per-process, via the <literal>GLIBCXX_TUNABLES</literal> environment + variable. + The <literal>GLIBCXX_TUNABLES</literal> environment variable should be + a string of colon-separated <emphasis>name=value</emphasis> pairs. The + following names will be recognized, with the specified semantics: + </para> + + <variablelist> + <varlistentry> + <term><code>glibcxx.eh_pool.obj_count</code></term> + <listitem> + The number of exception objects to provide space for in the pool. + The value must be a non-negative integer and has the same meaning as the + <code>--with-libstdcxx-eh-pool-obj-count</code> option for + <filename>configure</filename>. + </listitem> + </varlistentry> + <varlistentry> + <term><code>glibcxx.eh_pool.obj_size</code></term> + <listitem> + The expected size of exception objects that the pool might get used for. + The value must be a positive integer, and is measured in units of + <code>sizeof(void*)</code>. The default value is <literal>6</literal> + which is large enough to store any exception type thrown by libstdc++. + Exceptions larger than this can still be allocated from the pool, + but larger exceptions will exhaust the pool more rapidly. + </listitem> + </varlistentry> + </variablelist> + +</section> + <section xml:id="intro.using.exception.no" xreflabel="-fno-exceptions"><info><title>Doing without</title></info> <para> @@ -538,6 +619,15 @@ is called. </title> </biblioentry> + <biblioentry> + <title> + <link xmlns:xlink="http://www.w3.org/1999/xlink" + xlink:href="https://www.gnu.org/software/libc/manual/html_node/Tunables.html"> + Tunables, The GNU C Library + </link> + </title> + </biblioentry> + </bibliography> </section> diff --git a/libstdc++-v3/include/Makefile.in b/libstdc++-v3/include/Makefile.in index 9d60755..0a3a1e3 100644 --- a/libstdc++-v3/include/Makefile.in +++ b/libstdc++-v3/include/Makefile.in @@ -199,6 +199,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/include/debug/string b/libstdc++-v3/include/debug/string index c16751c..574a78e 100644 --- a/libstdc++-v3/include/debug/string +++ b/libstdc++-v3/include/debug/string @@ -1023,22 +1023,11 @@ namespace __gnu_debug substr(size_type __pos = 0, size_type __n = _Base::npos) const { return basic_string(_Base::substr(__pos, __n)); } - int - compare(const basic_string& __str) const - { return _Base::compare(__str); } - - int - compare(size_type __pos1, size_type __n1, - const basic_string& __str) const - { return _Base::compare(__pos1, __n1, __str); } - - int - compare(size_type __pos1, size_type __n1, const basic_string& __str, - size_type __pos2, size_type __n2) const - { return _Base::compare(__pos1, __n1, __str, __pos2, __n2); } + using _Base::compare; + _GLIBCXX20_CONSTEXPR int - compare(const _CharT* __s) const + compare(const _CharT* __s) const _GLIBCXX_NOEXCEPT { __glibcxx_check_string(__s); return _Base::compare(__s); @@ -1046,6 +1035,7 @@ namespace __gnu_debug // _GLIBCXX_RESOLVE_LIB_DEFECTS // 5. string::compare specification questionable + _GLIBCXX20_CONSTEXPR int compare(size_type __pos1, size_type __n1, const _CharT* __s) const { @@ -1055,6 +1045,7 @@ namespace __gnu_debug // _GLIBCXX_RESOLVE_LIB_DEFECTS // 5. string::compare specification questionable + _GLIBCXX20_CONSTEXPR int compare(size_type __pos1, size_type __n1,const _CharT* __s, size_type __n2) const diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges index 1f82112..5857d42 100644 --- a/libstdc++-v3/include/std/ranges +++ b/libstdc++-v3/include/std/ranges @@ -7356,6 +7356,216 @@ namespace views::__adaptor inline constexpr _JoinWith join_with; } // namespace views + + template<copy_constructible _Tp, semiregular _Bound = unreachable_sentinel_t> + requires (is_object_v<_Tp> && same_as<_Tp, remove_cv_t<_Tp>> + && (__detail::__is_integer_like<_Bound> || same_as<_Bound, unreachable_sentinel_t>)) + class repeat_view : public view_interface<repeat_view<_Tp, _Bound>> + { + __detail::__box<_Tp> _M_value = _Tp(); + [[no_unique_address]] _Bound _M_bound = _Bound(); + + struct _Iterator; + + public: + repeat_view() requires default_initializable<_Tp> = default; + + constexpr explicit + repeat_view(const _Tp& __value, _Bound __bound = _Bound()) + : _M_value(__value), _M_bound(__bound) + { + if constexpr (!same_as<_Bound, unreachable_sentinel_t>) + __glibcxx_assert(__bound >= 0); + } + + constexpr explicit + repeat_view(_Tp&& __value, _Bound __bound = _Bound()) + : _M_value(std::move(__value)), _M_bound(__bound) + { } + + template<typename... _Args, typename... _BoundArgs> + requires constructible_from<_Tp, _Args...> + && constructible_from<_Bound, _BoundArgs...> + constexpr explicit + repeat_view(piecewise_construct_t, + tuple<_Args...> __args, + tuple<_BoundArgs...> __bound_args = tuple<>{}) + : _M_value(std::make_from_tuple<_Tp>(std::move(__args))), + _M_bound(std::make_from_tuple<_Bound>(std::move(__bound_args))) + { } + + constexpr _Iterator + begin() const + { return _Iterator(std::__addressof(*_M_value)); } + + constexpr _Iterator + end() const requires (!same_as<_Bound, unreachable_sentinel_t>) + { return _Iterator(std::__addressof(*_M_value), _M_bound); } + + constexpr unreachable_sentinel_t + end() const noexcept + { return unreachable_sentinel; } + + constexpr auto + size() const requires (!same_as<_Bound, unreachable_sentinel_t>) + { return __detail::__to_unsigned_like(_M_bound); } + }; + + template<typename _Tp, typename _Bound> + repeat_view(_Tp, _Bound) -> repeat_view<_Tp, _Bound>; + + template<copy_constructible _Tp, semiregular _Bound> + requires __detail::__is_integer_like<_Bound> || same_as<_Bound, unreachable_sentinel_t> + class repeat_view<_Tp, _Bound>::_Iterator + { + using __index_type + = __conditional_t<same_as<_Bound, unreachable_sentinel_t>, ptrdiff_t, _Bound>; + + const _Tp* _M_value = nullptr; + __index_type _M_current = __index_type(); + + constexpr explicit + _Iterator(const _Tp* __value, __index_type __bound = __index_type()) + : _M_value(__value), _M_current(__bound) + { + if constexpr (!same_as<_Bound, unreachable_sentinel_t>) + __glibcxx_assert(__bound >= 0); + } + + friend repeat_view; + + public: + using iterator_concept = random_access_iterator_tag; + using iterator_category = random_access_iterator_tag; + using value_type = _Tp; + using difference_type = __conditional_t<__detail::__is_signed_integer_like<__index_type>, + __index_type, + __detail::__iota_diff_t<__index_type>>; + + _Iterator() = default; + + constexpr const _Tp& + operator*() const noexcept + { return *_M_value; } + + constexpr _Iterator& + operator++() + { + ++_M_current; + return *this; + } + + constexpr _Iterator + operator++(int) + { + auto __tmp = *this; + ++*this; + return __tmp; + } + + constexpr _Iterator& + operator--() + { + if constexpr (!same_as<_Bound, unreachable_sentinel_t>) + __glibcxx_assert(_M_current > 0); + --_M_current; + return *this; + } + + constexpr _Iterator + operator--(int) + { + auto __tmp = *this; + --*this; + return __tmp; + } + + constexpr _Iterator& + operator+=(difference_type __n) + { + if constexpr (!same_as<_Bound, unreachable_sentinel_t>) + __glibcxx_assert(_M_current + __n >= 0); + _M_current += __n; + return *this; + } + + constexpr _Iterator& + operator-=(difference_type __n) + { + if constexpr (!same_as<_Bound, unreachable_sentinel_t>) + __glibcxx_assert(_M_current - __n >= 0); + _M_current -= __n; + return *this; + } + + constexpr const _Tp& + operator[](difference_type __n) const noexcept + { return *(*this + __n); } + + friend constexpr bool + operator==(const _Iterator& __x, const _Iterator& __y) + { return __x._M_current == __y._M_current; } + + friend constexpr auto + operator<=>(const _Iterator& __x, const _Iterator& __y) + { return __x._M_current <=> __y._M_current; } + + friend constexpr _Iterator + operator+(_Iterator __i, difference_type __n) + { + __i += __n; + return __i; + } + + friend constexpr _Iterator + operator+(difference_type __n, _Iterator __i) + { return __i + __n; } + + friend constexpr _Iterator + operator-(_Iterator __i, difference_type __n) + { + __i -= __n; + return __i; + } + + friend constexpr difference_type + operator-(const _Iterator& __x, const _Iterator& __y) + { + return (static_cast<difference_type>(__x._M_current) + - static_cast<difference_type>(__y._M_current)); + } + }; + + namespace views + { + namespace __detail + { + template<typename _Tp> + concept __can_repeat_view + = requires { repeat_view(std::declval<_Tp>()); }; + + template<typename _Tp, typename _Bound> + concept __can_bounded_repeat_view + = requires { repeat_view(std::declval<_Tp>(), std::declval<_Bound>()); }; + } + + struct _Repeat + { + template<typename _Tp> + requires __detail::__can_repeat_view<_Tp> + constexpr auto + operator() [[nodiscard]] (_Tp&& __value) const + { return repeat_view(std::forward<_Tp>(__value)); } + + template<typename _Tp, typename _Bound> + requires __detail::__can_bounded_repeat_view<_Tp, _Bound> + constexpr auto + operator() [[nodiscard]] (_Tp&& __value, _Bound __bound) const + { return repeat_view(std::forward<_Tp>(__value), __bound); } + }; + + inline constexpr _Repeat repeat; + } #endif // C++23 } // namespace ranges diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index b74565e..1d7c3b0 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -1806,8 +1806,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { typedef typename __make_unsigned_selector<_Tp>::__type type; }; // Integral, but don't define. - template<> - struct make_unsigned<bool>; + template<> struct make_unsigned<bool>; + template<> struct make_unsigned<bool const>; + template<> struct make_unsigned<bool volatile>; + template<> struct make_unsigned<bool const volatile>; /// @cond undocumented @@ -1936,8 +1938,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { typedef typename __make_signed_selector<_Tp>::__type type; }; // Integral, but don't define. - template<> - struct make_signed<bool>; + template<> struct make_signed<bool>; + template<> struct make_signed<bool const>; + template<> struct make_signed<bool volatile>; + template<> struct make_signed<bool const volatile>; #if __cplusplus > 201103L /// Alias template for make_signed diff --git a/libstdc++-v3/libsupc++/Makefile.am b/libstdc++-v3/libsupc++/Makefile.am index 65b5c1a..cde9fbd 100644 --- a/libstdc++-v3/libsupc++/Makefile.am +++ b/libstdc++-v3/libsupc++/Makefile.am @@ -139,7 +139,7 @@ atomicity.cc: ${atomicity_file} # as the occasion call for it. AM_CXXFLAGS = \ $(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \ - $(XTEMPLATE_FLAGS) $(FREESTANDING_FLAGS) \ + $(XTEMPLATE_FLAGS) $(FREESTANDING_FLAGS) $(EH_POOL_FLAGS) \ $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) AM_MAKEFLAGS = \ diff --git a/libstdc++-v3/libsupc++/Makefile.in b/libstdc++-v3/libsupc++/Makefile.in index a440200..1127095 100644 --- a/libstdc++-v3/libsupc++/Makefile.in +++ b/libstdc++-v3/libsupc++/Makefile.in @@ -308,6 +308,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ @@ -587,7 +588,7 @@ atomicity_file = ${glibcxx_srcdir}/$(ATOMICITY_SRCDIR)/atomicity.h # as the occasion call for it. AM_CXXFLAGS = \ $(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \ - $(XTEMPLATE_FLAGS) $(FREESTANDING_FLAGS) \ + $(XTEMPLATE_FLAGS) $(FREESTANDING_FLAGS) $(EH_POOL_FLAGS) \ $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) AM_MAKEFLAGS = \ diff --git a/libstdc++-v3/libsupc++/eh_alloc.cc b/libstdc++-v3/libsupc++/eh_alloc.cc index 68f3198..81b8a15 100644 --- a/libstdc++-v3/libsupc++/eh_alloc.cc +++ b/libstdc++-v3/libsupc++/eh_alloc.cc @@ -25,16 +25,45 @@ // This is derived from the C++ ABI for IA-64. Where we diverge // for cross-architecture compatibility are noted with "@@@". -#include <bits/c++config.h> -#include <cstdlib> +#include <exception> // std::exception +#include <new> // std::terminate +#include <cstdlib> // std::malloc, std::free, std::strtoul +#include <climits> // INT_MAX +#include <bits/stl_function.h> // std::less +#include "unwind-cxx.h" #if _GLIBCXX_HOSTED -#include <cstring> +# include <string_view> // std::string_view +# include <cstring> // std::strchr, std::memset +# include <ext/concurrence.h> // __gnu_cxx::__mutex, __gnu_cxx::__scoped_lock #endif -#include <climits> -#include <exception> -#include "unwind-cxx.h" -#include <ext/concurrence.h> -#include <new> + +// We use an emergency buffer used for exceptions when malloc fails. +// If _GLIBCXX_EH_POOL_STATIC is defined (e.g. by configure) then we use +// a fixed-size static buffer. Otherwise, allocate on startup using malloc. +// +// The size of the buffer is N * (S * P + R + D), where: +// N == The number of objects to reserve space for. +// Defaults to EMERGENCY_OBJ_COUNT, defined below. +// S == Estimated size of exception objects to account for. +// This size is in units of sizeof(void*) not bytes. +// Defaults to EMERGENCY_OBJ_SIZE, defined below. +// P == sizeof(void*). +// R == sizeof(__cxa_refcounted_exception). +// D == sizeof(__cxa_dependent_exception). +// +// This provides space for N thrown exceptions of S words each, and an +// additional N dependent exceptions from std::rethrow_exception. +// +// The calculation allows values of N and S to be target-independent, +// as the size will be scaled by the size of basic types on the target, +// and space for the C++ exception header (__cxa_refcounted_exception) +// is added automatically. +// +// For a dynamically allocated buffer, N and S can be set from the environment. +// Setting N=0 will disable the emergency buffer. +// The GLIBCXX_TUNABLES environment variable will be checked for the following: +// - Tunable glibcxx.eh_pool.obj_count overrides EMERGENCY_OBJ_COUNT. +// - Tunable glibcxx.eh_pool.obj_size overrides EMERGENCY_OBJ_SIZE. #if _GLIBCXX_HOSTED using std::free; @@ -50,46 +79,61 @@ extern "C" void *memset (void *, int, std::size_t); using namespace __cxxabiv1; -// ??? How to control these parameters. - -// Guess from the size of basic types how large a buffer is reasonable. -// Note that the basic c++ exception header has 13 pointers and 2 ints, -// so on a system with PSImode pointers we're talking about 56 bytes -// just for overhead. - -#if INT_MAX == 32767 -# define EMERGENCY_OBJ_SIZE 128 -# define EMERGENCY_OBJ_COUNT 16 -#elif !defined (_GLIBCXX_LLP64) && LONG_MAX == 2147483647 -# define EMERGENCY_OBJ_SIZE 512 -# define EMERGENCY_OBJ_COUNT 32 +// Assume that 6 * sizeof(void*) is a reasonable exception object size. +// Throwing very many large objects will exhaust the pool more quickly. +// N.B. sizeof(std::bad_alloc) == sizeof(void*) +// and sizeof(std::runtime_error) == 2 * sizeof(void*) +// and sizeof(std::system_error) == 4 * sizeof(void*). +#define EMERGENCY_OBJ_SIZE 6 + +#ifdef __GTHREADS +// Assume that the number of concurrent exception objects scales with the +// processor word size, i.e., 16-bit systems are not likely to have hundreds +// of threads all simultaneously throwing on OOM conditions. +# define EMERGENCY_OBJ_COUNT (4 * __SIZEOF_POINTER__ * __SIZEOF_POINTER__) +# define MAX_OBJ_COUNT (16 << __SIZEOF_POINTER__) #else -# define EMERGENCY_OBJ_SIZE 1024 -# define EMERGENCY_OBJ_COUNT 64 +# define EMERGENCY_OBJ_COUNT 4 +# define MAX_OBJ_COUNT 64 #endif -#ifndef __GTHREADS -# undef EMERGENCY_OBJ_COUNT -# define EMERGENCY_OBJ_COUNT 4 +// This can be set by configure. +#ifdef _GLIBCXX_EH_POOL_NOBJS +# if _GLIBCXX_EH_POOL_NOBJS > MAX_OBJ_COUNT +# warning "_GLIBCXX_EH_POOL_NOBJS value is too large; ignoring it" +# else +# undef EMERGENCY_OBJ_COUNT +# define EMERGENCY_OBJ_COUNT _GLIBCXX_EH_POOL_NOBJS +# endif #endif namespace __gnu_cxx { - void __freeres(); + void __freeres() noexcept; } namespace { + static constexpr std::size_t + buffer_size_in_bytes(std::size_t obj_count, std::size_t obj_size) noexcept + { + // N * (S * P + R + D) + constexpr std::size_t P = sizeof(void*); + constexpr std::size_t R = sizeof(__cxa_refcounted_exception); + constexpr std::size_t D = sizeof(__cxa_dependent_exception); + return obj_count * (obj_size * P + R + D); + } + // A fixed-size heap, variable size object allocator class pool { public: - pool(); + pool() noexcept; - _GLIBCXX_NODISCARD void *allocate (std::size_t); - void free (void *); + _GLIBCXX_NODISCARD void *allocate (std::size_t) noexcept; + void free (void *) noexcept; - bool in_pool (void *); + bool in_pool (void *) const noexcept; private: struct free_entry { @@ -101,33 +145,87 @@ namespace char data[] __attribute__((aligned)); }; +#if _GLIBCXX_HOSTED // A single mutex controlling emergency allocations. __gnu_cxx::__mutex emergency_mutex; + using __scoped_lock = __gnu_cxx::__scoped_lock; +#else + int emergency_mutex = 0; + struct __scoped_lock { explicit __scoped_lock(int) { } }; +#endif // The free-list - free_entry *first_free_entry; + free_entry *first_free_entry = nullptr; // The arena itself - we need to keep track of these only // to implement in_pool. - char *arena; - std::size_t arena_size; +#ifdef _GLIBCXX_EH_POOL_STATIC + static constexpr std::size_t arena_size + = buffer_size_in_bytes(EMERGENCY_OBJ_COUNT, EMERGENCY_OBJ_SIZE); + alignas(void*) char arena[std::max(arena_size, sizeof(free_entry))]; +#else + char *arena = nullptr; + std::size_t arena_size = 0; +#endif - friend void __gnu_cxx::__freeres(); + friend void __gnu_cxx::__freeres() noexcept; }; - pool::pool() + pool::pool() noexcept { - // Allocate the arena - we could add a GLIBCXX_EH_ARENA_SIZE environment - // to make this tunable. - arena_size = (EMERGENCY_OBJ_SIZE * EMERGENCY_OBJ_COUNT - + EMERGENCY_OBJ_COUNT * sizeof (__cxa_dependent_exception)); +#ifndef _GLIBCXX_EH_POOL_STATIC + int obj_size = EMERGENCY_OBJ_SIZE; + int obj_count = EMERGENCY_OBJ_COUNT; + +#if _GLIBCXX_HOSTED +#if _GLIBCXX_HAVE_SECURE_GETENV + const char* str = ::secure_getenv("GLIBCXX_TUNABLES"); +#else + const char* str = std::getenv("GLIBCXX_TUNABLES"); +#endif + const std::string_view ns_name = "glibcxx.eh_pool"; + std::pair<std::string_view, int> tunables[]{ + {"obj_size", 0}, {"obj_count", obj_count} + }; + while (str) + { + if (*str == ':') + ++str; + + if (!ns_name.compare(0, ns_name.size(), str, ns_name.size()) + && str[ns_name.size()] == '.') + { + str += ns_name.size() + 1; + for (auto& t : tunables) + if (!t.first.compare(0, t.first.size(), str, t.first.size()) + && str[t.first.size()] == '=') + { + str += t.first.size() + 1; + char* end; + unsigned long val = strtoul(str, &end, 0); + if ((*end == ':' || *end == '\0') && val <= INT_MAX) + t.second = val; + str = end; + break; + } + } + str = strchr(str, ':'); + } + obj_count = std::min(tunables[1].second, MAX_OBJ_COUNT); // Can be zero. + if (tunables[0].second != 0) + obj_size = tunables[0].second; +#endif // HOSTED + + arena_size = buffer_size_in_bytes(obj_count, obj_size); + if (arena_size == 0) + return; arena = (char *)malloc (arena_size); if (!arena) { // If the allocation failed go without an emergency pool. arena_size = 0; - first_free_entry = NULL; return; } +#endif // STATIC // Populate the free-list with a single entry covering the whole arena first_free_entry = reinterpret_cast <free_entry *> (arena); @@ -136,9 +234,9 @@ namespace first_free_entry->next = NULL; } - void *pool::allocate (std::size_t size) + void *pool::allocate (std::size_t size) noexcept { - __gnu_cxx::__scoped_lock sentry(emergency_mutex); + __scoped_lock sentry(emergency_mutex); // We need an additional size_t member plus the padding to // ensure proper alignment of data. size += offsetof (allocated_entry, data); @@ -188,9 +286,9 @@ namespace return &x->data; } - void pool::free (void *data) + void pool::free (void *data) noexcept { - __gnu_cxx::__scoped_lock sentry(emergency_mutex); + __scoped_lock sentry(emergency_mutex); allocated_entry *e = reinterpret_cast <allocated_entry *> (reinterpret_cast <char *> (data) - offsetof (allocated_entry, data)); std::size_t sz = e->size; @@ -252,11 +350,10 @@ namespace } } - bool pool::in_pool (void *ptr) + inline bool pool::in_pool (void *ptr) const noexcept { - char *p = reinterpret_cast <char *> (ptr); - return (p > arena - && p < arena + arena_size); + std::less<const void*> less; + return less(ptr, arena + arena_size) && less(arena, ptr); } pool emergency_pool; @@ -264,24 +361,26 @@ namespace namespace __gnu_cxx { + __attribute__((cold)) void - __freeres() + __freeres() noexcept { +#ifndef _GLIBCXX_EH_POOL_STATIC if (emergency_pool.arena) { ::free(emergency_pool.arena); emergency_pool.arena = 0; } +#endif } } extern "C" void * -__cxxabiv1::__cxa_allocate_exception(std::size_t thrown_size) _GLIBCXX_NOTHROW +__cxxabiv1::__cxa_allocate_exception(std::size_t thrown_size) noexcept { - void *ret; - thrown_size += sizeof (__cxa_refcounted_exception); - ret = malloc (thrown_size); + + void *ret = malloc (thrown_size); if (!ret) ret = emergency_pool.allocate (thrown_size); @@ -296,10 +395,10 @@ __cxxabiv1::__cxa_allocate_exception(std::size_t thrown_size) _GLIBCXX_NOTHROW extern "C" void -__cxxabiv1::__cxa_free_exception(void *vptr) _GLIBCXX_NOTHROW +__cxxabiv1::__cxa_free_exception(void *vptr) noexcept { char *ptr = (char *) vptr - sizeof (__cxa_refcounted_exception); - if (emergency_pool.in_pool (ptr)) + if (emergency_pool.in_pool (ptr)) [[__unlikely__]] emergency_pool.free (ptr); else free (ptr); @@ -307,31 +406,27 @@ __cxxabiv1::__cxa_free_exception(void *vptr) _GLIBCXX_NOTHROW extern "C" __cxa_dependent_exception* -__cxxabiv1::__cxa_allocate_dependent_exception() _GLIBCXX_NOTHROW +__cxxabiv1::__cxa_allocate_dependent_exception() noexcept { - __cxa_dependent_exception *ret; - - ret = static_cast<__cxa_dependent_exception*> - (malloc (sizeof (__cxa_dependent_exception))); + void *ret = malloc (sizeof (__cxa_dependent_exception)); if (!ret) - ret = static_cast <__cxa_dependent_exception*> - (emergency_pool.allocate (sizeof (__cxa_dependent_exception))); + ret = emergency_pool.allocate (sizeof (__cxa_dependent_exception)); if (!ret) std::terminate (); memset (ret, 0, sizeof (__cxa_dependent_exception)); - return ret; + return static_cast<__cxa_dependent_exception*>(ret); } extern "C" void __cxxabiv1::__cxa_free_dependent_exception - (__cxa_dependent_exception *vptr) _GLIBCXX_NOTHROW + (__cxa_dependent_exception *vptr) noexcept { - if (emergency_pool.in_pool (vptr)) + if (emergency_pool.in_pool (vptr)) [[__unlikely__]] emergency_pool.free (vptr); else free (vptr); diff --git a/libstdc++-v3/po/Makefile.in b/libstdc++-v3/po/Makefile.in index 243f3db..af3d4c4 100644 --- a/libstdc++-v3/po/Makefile.in +++ b/libstdc++-v3/po/Makefile.in @@ -199,6 +199,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/python/Makefile.in b/libstdc++-v3/python/Makefile.in index 9da4b31..0c600de 100644 --- a/libstdc++-v3/python/Makefile.in +++ b/libstdc++-v3/python/Makefile.in @@ -229,6 +229,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/src/Makefile.in b/libstdc++-v3/src/Makefile.in index cef290c..c54c0f6 100644 --- a/libstdc++-v3/src/Makefile.in +++ b/libstdc++-v3/src/Makefile.in @@ -301,6 +301,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/src/c++11/Makefile.in b/libstdc++-v3/src/c++11/Makefile.in index 4db28bd..013ab3c 100644 --- a/libstdc++-v3/src/c++11/Makefile.in +++ b/libstdc++-v3/src/c++11/Makefile.in @@ -266,6 +266,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/src/c++17/Makefile.in b/libstdc++-v3/src/c++17/Makefile.in index b88917e..217cbbe 100644 --- a/libstdc++-v3/src/c++17/Makefile.in +++ b/libstdc++-v3/src/c++17/Makefile.in @@ -245,6 +245,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/src/c++20/Makefile.in b/libstdc++-v3/src/c++20/Makefile.in index 197d75b..c04bb7d 100644 --- a/libstdc++-v3/src/c++20/Makefile.in +++ b/libstdc++-v3/src/c++20/Makefile.in @@ -240,6 +240,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/src/c++98/Makefile.in b/libstdc++-v3/src/c++98/Makefile.in index 90eff5d..77ec8c7 100644 --- a/libstdc++-v3/src/c++98/Makefile.in +++ b/libstdc++-v3/src/c++98/Makefile.in @@ -261,6 +261,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/src/filesystem/Makefile.in b/libstdc++-v3/src/filesystem/Makefile.in index 8986b42..010bcfc 100644 --- a/libstdc++-v3/src/filesystem/Makefile.in +++ b/libstdc++-v3/src/filesystem/Makefile.in @@ -269,6 +269,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/src/libbacktrace/Makefile.in b/libstdc++-v3/src/libbacktrace/Makefile.in index 5c6b4dd..a52f645 100644 --- a/libstdc++-v3/src/libbacktrace/Makefile.in +++ b/libstdc++-v3/src/libbacktrace/Makefile.in @@ -302,6 +302,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs_neg.cc b/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs_neg.cc index 051bb64..451eeb8 100644 --- a/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs_neg.cc +++ b/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs_neg.cc @@ -20,31 +20,27 @@ // <http://www.gnu.org/licenses/>. #include <type_traits> -#include <testsuite_character.h> -enum test_enum { first_selection }; +struct pod_class { }; void test01() { using std::make_signed; // Negative tests. - typedef make_signed<bool>::type test1_type; + using T1 = make_signed<bool>::type; // { dg-error "incomplete" } + using T2 = make_signed<const bool>::type; // { dg-error "incomplete" } + using T3 = make_signed<volatile bool>::type; // { dg-error "incomplete" } + using T4 = make_signed<const volatile bool>::type; // { dg-error "incomplete" } - typedef make_signed<__gnu_test::pod_uint>::type test2_type; + using T5 = make_signed<pod_class>::type; // { dg-error "here" } - typedef make_signed<int[4]>::type test3_type; + using T6 = make_signed<int[4]>::type; // { dg-error "here" } - typedef void (fn_type) (); - typedef make_signed<fn_type>::type test4_type; + using fn_type = void (); + using T7 = make_signed<fn_type>::type; // { dg-error "here" } - typedef make_signed<float>::type test5_type; + using T8 = make_signed<float>::type; // { dg-error "here" } } -// { dg-error "invalid use of incomplete type" "" { target *-*-* } 32 } -// { dg-error "required from here" "" { target *-*-* } 34 } -// { dg-error "required from here" "" { target *-*-* } 36 } -// { dg-error "required from here" "" { target *-*-* } 39 } -// { dg-error "required from here" "" { target *-*-* } 41 } - // { dg-error "invalid use of incomplete type" "" { target *-*-* } 0 } diff --git a/libstdc++-v3/testsuite/20_util/make_signed/requirements/uninstantiated.cc b/libstdc++-v3/testsuite/20_util/make_signed/requirements/uninstantiated.cc new file mode 100644 index 0000000..3facf0c --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/make_signed/requirements/uninstantiated.cc @@ -0,0 +1,8 @@ +// { dg-do compile { target c++11 } } +#include <type_traits> + +// Check that we can name invalid specializations, just don't instantiate them. + +using X = std::make_signed<float>; +using Y = std::make_signed<bool>; +using Z = std::make_signed<void>; diff --git a/libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc b/libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc index ff98cc4..49d5209 100644 --- a/libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc +++ b/libstdc++-v3/testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc @@ -21,7 +21,6 @@ #include <type_traits> -enum test_enum { first_selection }; struct pod_class { }; void test01() @@ -29,22 +28,19 @@ void test01() using std::make_unsigned; // Negative tests. - typedef make_unsigned<bool>::type test1_type; + using T1 = make_unsigned<bool>::type; // { dg-error "incomplete" } + using T2 = make_unsigned<const bool>::type; // { dg-error "incomplete" } + using T3 = make_unsigned<volatile bool>::type; // { dg-error "incomplete" } + using T4 = make_unsigned<const volatile bool>::type; // { dg-error "incomplete" } - typedef make_unsigned<pod_class>::type test2_type; + using T5 = make_unsigned<pod_class>::type; // { dg-error "here" } - typedef make_unsigned<int[4]>::type test3_type; + using T6 = make_unsigned<int[4]>::type; // { dg-error "here" } - typedef void (fn_type) (); - typedef make_unsigned<fn_type>::type test4_type; + using fn_type = void (); + using T7 = make_unsigned<fn_type>::type; // { dg-error "here" } - typedef make_unsigned<float>::type test5_type; + using T8 = make_unsigned<float>::type; // { dg-error "here" } } -// { dg-error "invalid use of incomplete type" "" { target *-*-* } 32 } -// { dg-error "required from here" "" { target *-*-* } 34 } -// { dg-error "required from here" "" { target *-*-* } 36 } -// { dg-error "required from here" "" { target *-*-* } 39 } -// { dg-error "required from here" "" { target *-*-* } 41 } - // { dg-error "invalid use of incomplete type" "" { target *-*-* } 0 } diff --git a/libstdc++-v3/testsuite/20_util/make_unsigned/requirements/uninstantiated.cc b/libstdc++-v3/testsuite/20_util/make_unsigned/requirements/uninstantiated.cc new file mode 100644 index 0000000..9b86096 --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/make_unsigned/requirements/uninstantiated.cc @@ -0,0 +1,8 @@ +// { dg-do compile { target c++11 } } +#include <type_traits> + +// Check that we can name invalid specializations, just don't instantiate them. + +using X = std::make_unsigned<float>; +using Y = std::make_unsigned<bool>; +using Z = std::make_unsigned<void>; diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/1.cc index 0bef0d2..c04b83c 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/1.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/1.cc @@ -29,7 +29,7 @@ // NB compare should be thought of as a lexographical compare, ie how // things would be sorted in a dictionary. -#include <string> +#include <testsuite_string.h> #include <cstring> #include <testsuite_hooks.h> @@ -67,7 +67,7 @@ test_value(int result, want_value expected) int test01() { - using namespace std; + using namespace __gnu_test; string str_0("costa rica"); string str_1("costa marbella"); diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/13650.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/13650.cc index 96fd2f1..ce95623 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/13650.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/13650.cc @@ -19,13 +19,13 @@ // 21.3.6.8 basic_string::compare [lib.string::compare] -#include <string> +#include <testsuite_string.h> #include <testsuite_hooks.h> // libstdc++/13650 void test01() { - using namespace std; + using namespace __gnu_test; const char lit_01[] = { 'w', 'e', '\0', 'r', 'd' }; const char lit_02[] = { 'w', 'e', 'i', '\0', 'd' }; diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/2.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/2.cc index 17e8752..fca1543 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/2.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/char/2.cc @@ -19,14 +19,14 @@ // [string::compare] -#include <string> +#include <testsuite_string.h> #include <testsuite_hooks.h> void test03() { std::string_view str1("foobar"); - std::string str2("foobar"); + __gnu_test::string str2("foobar"); auto x = str2.compare(str1); VERIFY (x == 0); @@ -52,7 +52,7 @@ test03() void test04() { - const std::string str("a"); + const __gnu_test::string str("a"); char c = 'a'; int res = str.compare(0, 1, &c, 1); VERIFY ( !res ); diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/1.cc index 97a873a..aa5c168 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/1.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/1.cc @@ -29,7 +29,7 @@ // NB compare should be thought of as a lexographical compare, ie how // things would be sorted in a dictionary. -#include <string> +#include <testsuite_string.h> #include <testsuite_hooks.h> enum want_value {lt=0, z=1, gt=2}; @@ -67,7 +67,7 @@ test_value(int result, want_value expected) int test01() { - using namespace std; + using namespace __gnu_test; wstring str_0(L"costa rica"); wstring str_1(L"costa marbella"); diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/13650.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/13650.cc index 1825c6b..f3dd4eb 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/13650.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/13650.cc @@ -19,13 +19,13 @@ // 21.3.6.8 basic_string::compare [lib.string::compare] -#include <string> +#include <testsuite_string.h> #include <testsuite_hooks.h> // libstdc++/13650 void test01() { - using namespace std; + using namespace __gnu_test; const wchar_t lit_01[] = { L'w', L'e', L'\0', L'r', L'd' }; const wchar_t lit_02[] = { L'w', L'e', L'i', L'\0', L'd' }; diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc index dd703c1..c6d219a 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc @@ -19,14 +19,14 @@ // [string::compare] -#include <string> +#include <testsuite_string.h> #include <testsuite_hooks.h> void test03() { std::wstring_view str1(L"foobar"); - std::wstring str2(L"foobar"); + __gnu_test::wstring str2(L"foobar"); auto x = str2.compare(str1); VERIFY (x == 0); @@ -52,7 +52,7 @@ test03() void test04() { - const std::wstring str(L"a"); + const __gnu_test::wstring str(L"a"); wchar_t c = L'a'; int res = str.compare(0, 1, &c, 1); diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/1.cc index 73843b0..76fcb07 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/1.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/1.cc @@ -17,23 +17,23 @@ // with this library; see the file COPYING3. If not see // <http://www.gnu.org/licenses/>. -#include <string> +#include <testsuite_string.h> #include <testsuite_hooks.h> // 21.3.6.2 basic_string rfind void test01(void) { - typedef std::string::size_type csize_type; - typedef std::string::const_reference cref; - typedef std::string::reference ref; - csize_type npos = std::string::npos; + typedef __gnu_test::string::size_type csize_type; + typedef __gnu_test::string::const_reference cref; + typedef __gnu_test::string::reference ref; + csize_type npos = __gnu_test::string::npos; csize_type csz01, csz02; const char str_lit01[] = "mave"; - const std::string str01("mavericks, santa cruz"); - std::string str02(str_lit01); - std::string str03("s, s"); - std::string str04; + const __gnu_test::string str01("mavericks, santa cruz"); + __gnu_test::string str02(str_lit01); + __gnu_test::string str03("s, s"); + __gnu_test::string str04; // size_type rfind(const string&, size_type pos = 0) const; csz01 = str01.rfind(str01); diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/2.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/2.cc index 5879655..9fecfcf 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/2.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/2.cc @@ -17,14 +17,14 @@ // with this library; see the file COPYING3. If not see // <http://www.gnu.org/licenses/>. -#include <string> +#include <testsuite_string.h> #include <testsuite_hooks.h> // 21.3.6.4 basic_string::find_last_of void test02() { - std::string z("ab"); - std::string::size_type pos; + __gnu_test::string z("ab"); + __gnu_test::string::size_type pos; pos = z.find_last_of("ab"); VERIFY( pos == 1 ); pos = z.find_last_of("Xa"); @@ -32,13 +32,13 @@ void test02() pos = z.find_last_of("Xb"); VERIFY( pos == 1 ); pos = z.find_last_of("XYZ"); - VERIFY( pos == std::string::npos ); + VERIFY( pos == __gnu_test::string::npos ); pos = z.find_last_of('a'); VERIFY( pos == 0 ); pos = z.find_last_of('b'); VERIFY( pos == 1 ); pos = z.find_last_of('X'); - VERIFY( pos == std::string::npos ); + VERIFY( pos == __gnu_test::string::npos ); } int main() diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/3.cc b/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/3.cc index 1ff9c94..69471e6 100644 --- a/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/3.cc +++ b/libstdc++-v3/testsuite/21_strings/basic_string/operations/rfind/char/3.cc @@ -17,23 +17,23 @@ // with this library; see the file COPYING3. If not see // <http://www.gnu.org/licenses/>. -#include <string> +#include <testsuite_string.h> #include <testsuite_hooks.h> // 21.3.6.6 basic_string::find_last_not_of void test03() { - typedef std::string::size_type csize_type; - std::string::size_type pos; - csize_type npos = std::string::npos; + typedef __gnu_test::string::size_type csize_type; + __gnu_test::string::size_type pos; + csize_type npos = __gnu_test::string::npos; - std::string x; + __gnu_test::string x; pos = x.find_last_not_of('X'); VERIFY( pos == npos ); pos = x.find_last_not_of("XYZ"); VERIFY( pos == npos ); - std::string y("a"); + __gnu_test::string y("a"); pos = y.find_last_not_of('X'); VERIFY( pos == 0 ); pos = y.find_last_not_of('a'); @@ -43,7 +43,7 @@ void test03() pos = y.find_last_not_of("a"); VERIFY( pos == npos ); - std::string z("ab"); + __gnu_test::string z("ab"); pos = z.find_last_not_of('X'); VERIFY( pos == 1 ); pos = z.find_last_not_of("XYZ"); diff --git a/libstdc++-v3/testsuite/Makefile.in b/libstdc++-v3/testsuite/Makefile.in index 1708060..328a036 100644 --- a/libstdc++-v3/testsuite/Makefile.in +++ b/libstdc++-v3/testsuite/Makefile.in @@ -199,6 +199,7 @@ ECHO_C = @ECHO_C@ ECHO_N = @ECHO_N@ ECHO_T = @ECHO_T@ EGREP = @EGREP@ +EH_POOL_FLAGS = @EH_POOL_FLAGS@ ERROR_CONSTANTS_SRCDIR = @ERROR_CONSTANTS_SRCDIR@ EXEEXT = @EXEEXT@ EXTRA_CFLAGS = @EXTRA_CFLAGS@ diff --git a/libstdc++-v3/testsuite/lib/prune.exp b/libstdc++-v3/testsuite/lib/prune.exp index d457e97..6d0b77a 100644 --- a/libstdc++-v3/testsuite/lib/prune.exp +++ b/libstdc++-v3/testsuite/lib/prune.exp @@ -51,6 +51,7 @@ proc libstdc++-dg-prune { system text } { regsub -all "(^|\n)\[^\n\]*: (recursively )?required \[^\n\]*" $text "" text regsub -all "(^|\n)\[^\n\]*: . skipping \[0-9\]* instantiation contexts \[^\n\]*" $text "" text regsub -all "(^|\n)\[^\n\]*: in .constexpr. expansion \[^\n\]*" $text "" text + regsub -all "(^|\n)\[^\n\]*: in requirements .with\[^\n\]*" $text "" text regsub -all "(^|\n) inlined from \[^\n\]*" $text "" text # Why doesn't GCC need these to strip header context? regsub -all "(^|\n)In file included from \[^\n\]*" $text "" text diff --git a/libstdc++-v3/testsuite/std/ranges/repeat/1.cc b/libstdc++-v3/testsuite/std/ranges/repeat/1.cc new file mode 100644 index 0000000..3698ed1 --- /dev/null +++ b/libstdc++-v3/testsuite/std/ranges/repeat/1.cc @@ -0,0 +1,93 @@ +// { dg-options "-std=gnu++23" } +// { dg-do run { target c++23 } } + +#include <ranges> +#include <algorithm> +#include <testsuite_hooks.h> + +namespace ranges = std::ranges; +namespace views = std::views; + +constexpr bool +test01() +{ + auto v = views::repeat(42); + static_assert(ranges::random_access_range<decltype(v)> + && !ranges::sized_range<decltype(v)>); + auto i = ranges::begin(v); + auto s = ranges::end(v); + VERIFY( *i == 42 ); + VERIFY( i[0] == 42 ); + VERIFY( &i[0] == &i[1] ); + VERIFY( &*i == &*(i+1) ); + VERIFY( i != s ); + auto j = i + 5, k = i + 12; + VERIFY( k - i == 12 ); + VERIFY( k - j == 7 ); + VERIFY( i - j == -5 ); + VERIFY( k > j ); + VERIFY( j < k ); + VERIFY( i + 5 == j ); + VERIFY( i != j ); + VERIFY( i + 5 <= j ); + VERIFY( j - 5 >= i ); + + return true; +} + +constexpr bool +test02() +{ + constexpr int bound = 20; + auto v = views::repeat(42, bound); + static_assert(ranges::random_access_range<decltype(v)> + && ranges::sized_range<decltype(v)>); + VERIFY( ranges::equal(v, views::repeat(42) | views::take(bound)) ); + auto i = ranges::begin(v); + auto s = ranges::end(v); + VERIFY( *i == 42 ); + VERIFY( i[0] == 42 ); + VERIFY( &i[0] == &i[1] ); + VERIFY( &*i == &*(i+1) ); + VERIFY( i != s ); + auto j = i + 5, k = i + 12; + VERIFY( k - i == 12 ); + VERIFY( k - j == 7 ); + VERIFY( i - j == -5 ); + VERIFY( k > j ); + VERIFY( j < k ); + VERIFY( i + 5 == j ); + VERIFY( i != j ); + VERIFY( i + 5 <= j ); + VERIFY( j - 5 >= i ); + + VERIFY( ranges::size(v) == bound ); + VERIFY( s - i == bound ); + VERIFY( s - j == bound - (j - i) ); + VERIFY( i + bound == s ); + VERIFY( bound + i == s ); + + return true; +} + +constexpr bool +test03() +{ + struct A { int n, m; }; + auto v = ranges::repeat_view<A, unsigned>(std::piecewise_construct, + std::tuple{1, 2}, + std::tuple{3}); + VERIFY( v[0].n == 1 ); + VERIFY( v[0].m == 2 ); + VERIFY( ranges::size(v) == 3 ); + + return true; +} + +int +main() +{ + static_assert(test01()); + static_assert(test02()); + static_assert(test03()); +} diff --git a/libstdc++-v3/testsuite/util/testsuite_string.h b/libstdc++-v3/testsuite/util/testsuite_string.h index 7121ff8..7e61d98 100644 --- a/libstdc++-v3/testsuite/util/testsuite_string.h +++ b/libstdc++-v3/testsuite/util/testsuite_string.h @@ -1,7 +1,7 @@ #ifndef _GLIBCXX_TESTSUITE_STRING_H #define _GLIBCXX_TESTSUITE_STRING_H -#ifdef _GLIBCXX_DEBUG +#if defined(_GLIBCXX_DEBUG) && defined(_GLIBCXX_TEST_DEBUG_STRING) # include <debug/string> namespace __gnu_test { |