diff options
| author | kazu <kazu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-07-14 15:09:23 +0000 |
|---|---|---|
| committer | kazu <kazu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-07-14 15:09:23 +0000 |
| commit | 50ae75064639807c8620f3afebc7cc32274b1f4c (patch) | |
| tree | 6494556ece9d3f36c7356b6fcd45fee4fdbda268 /internal.h | |
| parent | 0641e1fc0e543a8ee6ee23c36c98f03659b5ba8c (diff) | |
use _Static_assert with clang
* 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
Diffstat (limited to 'internal.h')
| -rw-r--r-- | internal.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/internal.h b/internal.h index b4bd9a937e..b51b49ee77 100644 --- a/internal.h +++ b/internal.h @@ -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)] |