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| author | smatz <smatz@openttd.org> | 2009-09-07 21:02:10 +0000 |
|---|---|---|
| committer | smatz <smatz@openttd.org> | 2009-09-07 21:02:10 +0000 |
| commit | 2e2d00bee7291156b9ff963b71abf3b177563869 (patch) | |
| tree | 02f0e3d1973e6ce6f58ea46520a1617adc69f959 /src/stdafx.h | |
| parent | 434693b8389a5816d73f089e064819a19f76f798 (diff) | |
| download | openttd-2e2d00bee7291156b9ff963b71abf3b177563869.tar.xz | |
(svn r17465) -Codechange: use builtin static_assert() for assert_compile() if available
Diffstat (limited to 'src/stdafx.h')
| -rw-r--r-- | src/stdafx.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/stdafx.h b/src/stdafx.h index f21b28ee9..2dab7c0ae 100644 --- a/src/stdafx.h +++ b/src/stdafx.h @@ -301,12 +301,16 @@ typedef unsigned char byte; #define PERSONAL_DIR "" #endif -/* Compile time assertions, disabled for OS/2 or GCC < 3.4 (GCC < 3 isn't supported anymore) */ -#if defined(__OS2__) || (defined(__GNUC__) && __GNUC__ == 3 && __GNUC_MINOR__ < 4) +/* Compile time assertions. Prefer c++0x static_assert() */ +#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 ) +#elif defined(__OS2__) || (defined(__GNUC__) && __GNUC__ == 3 && __GNUC_MINOR__ < 4) + /* Disabled for OS/2 or GCC < 3.4 (GCC < 3 isn't supported anymore) */ #define assert_compile(expr) #else #define assert_compile(expr) extern const int __ct_assert__[1 - 2 * !(expr)] UNUSED -#endif /* __OS2__ */ +#endif /* Check if the types have the bitsizes like we are using them */ assert_compile(sizeof(uint64) == 8); |