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| author | Joseph Myers <joseph@codesourcery.com> | 2017-03-16 13:31:57 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-03-16 13:31:57 +0000 |
| commit | 2072f5c34ede81dde9e0d953d57a0690a66b0f12 (patch) | |
| tree | 0833e169e1c3e9b24ef64e9010f7bb1e862f7da8 /math/math.h | |
| parent | d6fc3f6516cd20f195758086fbbbe3f17a8a6d95 (diff) | |
| download | glibc-2072f5c34ede81dde9e0d953d57a0690a66b0f12.zip glibc-2072f5c34ede81dde9e0d953d57a0690a66b0f12.tar.gz glibc-2072f5c34ede81dde9e0d953d57a0690a66b0f12.tar.bz2 | |
Remove C++ namespace handling from glibc headers.
glibc headers include some code (not particularly consistent or
systematic) to put various declarations in C++ namespaces std and
__c99, if _GLIBCPP_USE_NAMESPACES is defined.
As noted in <https://gcc.gnu.org/ml/libstdc++/2017-03/msg00025.html>,
this macro was removed from libstdc++ in 2000. I don't expect
compilation with such old versions of libstdc++ to work with current
glibc headers anyway (whereas old *binaries* are expected to stay
working with current glibc); this patch (which should be a no-op with
any libstdc++ version postdating that removal) removes all this code
from the glibc headers.
The begin-end-check.pl test, whose comments say it is about checking
these namespace macro calls, is also removed. The code in that test
would have covered __BEGIN_DECLS / __END_DECLS as well, but if those
weren't properly matched it would show up with the
check-installed-headers-cxx tests, so I don't think there is an actual
use for keeping begin-end-check.pl with the namespace code removed.
Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).
* misc/sys/cdefs.h (__BEGIN_NAMESPACE_STD): Remove macro.
(__END_NAMESPACE_STD): Likewise.
(__USING_NAMESPACE_STD): Likewise.
(__BEGIN_NAMESPACE_C99): Likewise.
(__END_NAMESPACE_C99): Likewise.
(__USING_NAMESPACE_C99): Likewise.
* math/math.h (_Mdouble_BEGIN_NAMESPACE): Do not define and
undefine macro.
(_Mdouble_END_NAMESPACE): Likewise.
* ctype/ctype.h: Do not handle C++ namespaces.
* libio/bits/stdio-ldbl.h: Likewise.
* libio/stdio.h: Likewise.
* locale/locale.h: Likewise.
* math/bits/mathcalls.h: Likewise.
* setjmp/setjmp.h: Likewise.
* signal/signal.h: Likewise.
* stdlib/bits/stdlib-float.h: Likewise.
* stdlib/bits/stdlib-ldbl.h: Likewise.
* stdlib/stdlib.h: Likewise.
* string/string.h: Likewise.
* sysdeps/x86/fpu/bits/mathinline.h: Likewise.
* time/bits/types/clock_t.h: Likewise.
* time/bits/types/struct_tm.h: Likewise.
* time/bits/types/time_t.h: Likewise.
* time/time.h: Likewise.
* wcsmbs/bits/wchar-ldbl.h: Likewise.
* wcsmbs/uchar.h: Likewise.
* wcsmbs/wchar.h: Likewise.
[_GLIBCPP_USE_NAMESPACES] (wint_t): Remove conditional definition.
* wctype/wctype.h: Do not handle C++ namespaces.
* scripts/begin-end-check.pl: Remove.
* Makefile (installed-headers): Likewise.
(tests-special): Do not add $(objpfx)begin-end-check.out.
($(objpfx)begin-end-check.out): Remove.
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/math/math.h b/math/math.h index fde3070..c7895b7 100644 --- a/math/math.h +++ b/math/math.h @@ -208,13 +208,9 @@ enum #define _Mdouble_ double #define __MATH_PRECNAME(name,r) __CONCAT(name,r) #define __MATH_DECLARING_DOUBLE 1 -#define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD -#define _Mdouble_END_NAMESPACE __END_NAMESPACE_STD #include <bits/mathcalls-helper-functions.h> #include <bits/mathcalls.h> #undef _Mdouble_ -#undef _Mdouble_BEGIN_NAMESPACE -#undef _Mdouble_END_NAMESPACE #undef __MATH_PRECNAME #undef __MATH_DECLARING_DOUBLE @@ -230,13 +226,9 @@ enum # define _Mdouble_ _Mfloat_ # define __MATH_PRECNAME(name,r) name##f##r # define __MATH_DECLARING_DOUBLE 0 -# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_C99 -# define _Mdouble_END_NAMESPACE __END_NAMESPACE_C99 # include <bits/mathcalls-helper-functions.h> # include <bits/mathcalls.h> # undef _Mdouble_ -# undef _Mdouble_BEGIN_NAMESPACE -# undef _Mdouble_END_NAMESPACE # undef __MATH_PRECNAME # undef __MATH_DECLARING_DOUBLE @@ -277,14 +269,10 @@ extern long double __REDIRECT_NTH (nexttowardl, # define _Mdouble_ _Mlong_double_ # define __MATH_PRECNAME(name,r) name##l##r # define __MATH_DECLARING_DOUBLE 0 -# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_C99 -# define _Mdouble_END_NAMESPACE __END_NAMESPACE_C99 # define __MATH_DECLARE_LDOUBLE 1 # include <bits/mathcalls-helper-functions.h> # include <bits/mathcalls.h> # undef _Mdouble_ -# undef _Mdouble_BEGIN_NAMESPACE -# undef _Mdouble_END_NAMESPACE # undef __MATH_PRECNAME # undef __MATH_DECLARING_DOUBLE |