diff options
| -rw-r--r-- | src/stdafx.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/stdafx.h b/src/stdafx.h index 854282b6c..25973dea6 100644 --- a/src/stdafx.h +++ b/src/stdafx.h @@ -313,15 +313,20 @@ typedef unsigned char byte; #define PERSONAL_DIR "" #endif -/* Compile time assertions. Prefer c++0x static_assert() */ +/* Compile time assertions. Prefer c++0x static_assert(). + * Older compilers cannot evaluate some expressions at compile time, + * typically when templates are involved, try assert_tcompile() in those cases. */ #if defined(__STDCXX_VERSION__) || defined(__GXX_EXPERIMENTAL_CXX0X__) || defined(__GXX_EXPERIMENTAL_CPP0X__) || defined(static_assert) /* __STDCXX_VERSION__ is c++0x feature macro, __GXX_EXPERIMENTAL_CXX0X__ is used by gcc, __GXX_EXPERIMENTAL_CPP0X__ by icc */ #define assert_compile(expr) static_assert(expr, #expr ) + #define assert_tcompile(expr) assert_compile(expr) #elif defined(__OS2__) /* Disabled for OS/2 */ #define assert_compile(expr) + #define assert_tcompile(expr) assert_compile(expr) #else #define assert_compile(expr) typedef int __ct_assert__[1 - 2 * !(expr)] + #define assert_tcompile(expr) assert(expr) #endif /* Check if the types have the bitsizes like we are using them */ |