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use _Static_assert with clang

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* gc.c (__has_feature): move into internal.h.

* internal.h (__has_feature): ditto.

* internal.h (__has_extension): new macro.

* internal.h (STATIC_ASSERT): use _Static_assert with
  clang. [ruby-core:69931] [Bug #11343]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51242 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kazu 2015-07-14 15:09:23 +00:00
parent 0641e1fc0e
commit 50ae750646
3 changed files with 20 additions and 5 deletions
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11
ChangeLog
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@ -1,3 +1,14 @@
Wed Jul 15 00:03:36 2015 Kazuhiro NISHIYAMA <zn@mbf.nifty.com>
* gc.c (__has_feature): move into internal.h.
* internal.h (__has_feature): ditto.
* internal.h (__has_extension): new macro.
* internal.h (STATIC_ASSERT): use _Static_assert with
clang. [ruby-core:69931] [Bug #11343]
Wed Jul 15 00:00:00 2015 Kazuhiro NISHIYAMA <zn@mbf.nifty.com>
* random.c (fill_random_bytes_syscall): fix compile error with

4
gc.c
View file

@ -35,10 +35,6 @@
#undef rb_data_object_wrap
#ifndef __has_feature
# define __has_feature(x) 0
#endif
#ifndef HAVE_MALLOC_USABLE_SIZE
# ifdef _WIN32
# define HAVE_MALLOC_USABLE_SIZE

10
internal.h
View file

@ -73,7 +73,15 @@ extern "C" {
(__GNUC__ == (major) && __GNUC_MINOR__ > (minor)) || \
(__GNUC__ == (major) && __GNUC_MINOR__ == (minor) && __GNUC_PATCHLEVEL__ >= (patchlevel))))
#if GCC_VERSION_SINCE(4, 6, 0)
#ifndef __has_feature
# define __has_feature(x) 0
#endif
#ifndef __has_extension
# define __has_extension __has_feature
#endif
#if GCC_VERSION_SINCE(4, 6, 0) || __has_extension(c_static_assert)
# define STATIC_ASSERT(name, expr) _Static_assert(expr, #name ": " #expr)
#else
# define STATIC_ASSERT(name, expr) typedef int static_assert_##name##_check[1 - 2*!(expr)]