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Roll back r271012 even more aggressively.

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I've looked at the GCC sources and I now understand what's going wrong.
THe C11 keywords are simply nonexistent when using C++ mode. They are
marked as C-only in the parser. This is absolutely impractical for
multiple reasons:

- The C11 keywords do not conflict with C++ naming rules. They all start
  with _[A-Z]. There is no reason to make them C-only.

- It makes it practically impossible for people to use these keywords in
  C header files and expect them to work from within C++ sources.

As I said in my previous commit message: GCC is by far the weirdest
compiler that I've ever used.
This commit is contained in:
Ed Schouten 2014-09-05 05:36:32 +00:00
parent 7aa83a16bc
commit b58aba6b66
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=271155
2 changed files with 4 additions and 6 deletions
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2
include/tgmath.h
View File

@ -61,7 +61,7 @@
*/
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
__has_extension(c_generic_selections) || __GNUC_PREREQ__(4, 9)
__has_extension(c_generic_selections)
#define __tg_generic(x, cfnl, cfn, cfnf, fnl, fn, fnf) \
_Generic(x, \
long double _Complex: cfnl, \

8
sys/sys/cdefs.h
View File

@ -254,7 +254,7 @@
#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L
#if !__has_extension(c_alignas) && !__GNUC_PREREQ__(4, 7)
#if !__has_extension(c_alignas)
#if (defined(__cplusplus) && __cplusplus >= 201103L) || \
__has_extension(cxx_alignas)
#define _Alignas(x) alignas(x)
@ -264,13 +264,11 @@
#endif
#endif
#if !__GNUC_PREREQ__(4, 7)
#if defined(__cplusplus) && __cplusplus >= 201103L
#define _Alignof(x) alignof(x)
#else
#define _Alignof(x) __alignof(x)
#endif
#endif
#if !__has_extension(c_atomic) && !__has_extension(cxx_atomic)
/*
@ -286,7 +284,7 @@
#define _Noreturn __dead2
#endif
#if !__has_extension(c_static_assert) && !__GNUC_PREREQ__(4, 7)
#if !__has_extension(c_static_assert)
#if (defined(__cplusplus) && __cplusplus >= 201103L) || \
__has_extension(cxx_static_assert)
#define _Static_assert(x, y) static_assert(x, y)
@ -325,7 +323,7 @@
*/
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
__has_extension(c_generic_selections) || __GNUC_PREREQ__(4, 9)
__has_extension(c_generic_selections)
#define __generic(expr, t, yes, no) \
_Generic(expr, t: yes, default: no)
#elif __GNUC_PREREQ__(3, 1) && !defined(__cplusplus)