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| author | JeanHeyd Meneide <phdofthehouse@gmail.com> | 2020-12-01 14:39:47 -0700 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 2020-12-01 14:46:51 -0700 |
| commit | eccec8684142e05f2f92f0f5bd5b47dda3ba1529 (patch) | |
| tree | fe7097d15b7f8eaa5cfa1635f0783e1824908083 /gcc/doc/cpp.texi | |
| parent | 39836f8324d819459cb21198e95b993588c6a2b1 (diff) | |
| download | gcc-eccec8684142e05f2f92f0f5bd5b47dda3ba1529.zip gcc-eccec8684142e05f2f92f0f5bd5b47dda3ba1529.tar.gz gcc-eccec8684142e05f2f92f0f5bd5b47dda3ba1529.tar.bz2 | |
Feature: Macros for identifying the wide and narrow execution string literal encoding
gcc/c-family
* c-cppbuiltin.c (c_cpp_builtins): Add predefined
{__GNUC_EXECUTION_CHARSET_NAME} and
_WIDE_EXECUTION_CHARSET_NAME} macros.
gcc/
* doc/cpp.texi: Document new macros.
gcc/testsuite/
* c-c++-common/cpp/wide-narrow-predef-macros.c: New test.
libcpp/
* charset.c (init_iconv_desc): Initialize "to" and "from" fields.
* directives.c (cpp_get_narrow_charset_name): New function.
(cpp_get_wide_charset_name): Likewise.
* include/cpplib.h (cpp_get_narrow_charset_name): Prototype.
(cpp_get_wide_charset_name): Likewise.
* internal.h (cset_converter): Add "to" and "from" fields.
Diffstat (limited to 'gcc/doc/cpp.texi')
| -rw-r--r-- | gcc/doc/cpp.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/doc/cpp.texi b/gcc/doc/cpp.texi index 291e146..5dcd672 100644 --- a/gcc/doc/cpp.texi +++ b/gcc/doc/cpp.texi @@ -2451,6 +2451,15 @@ features are supported by GCC. @item __NO_MATH_ERRNO__ This macro is defined if @option{-fno-math-errno} is used, or enabled by another option such as @option{-ffast-math} or by default. + +@item __GNUC_EXECUTION_CHARSET_NAME +@itemx __GNUC_WIDE_EXECUTION_CHARSET_NAME +These macros are defined to expand to a narrow string literal of +the name of the narrow and wide compile-time execution character +set used. It directly reflects the name passed to the options +@option{-fexec-charset} and @option{-fwide-exec-charset}, or the defaults +documented for those options (that is, it can expand to something like +@code{"UTF-8"}). @xref{Invocation}. @end table @node System-specific Predefined Macros |