diff options
| author | Brian Paul <[email protected]> | 2015-02-26 10:19:37 -0700 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2015-02-26 12:21:30 -0700 |
| commit | 688d7656c58ea4775dbd55fe56193a27f4799c00 (patch) | |
| tree | 38507588b89f73abbc5f3fc407ab26ed2716f89e /include | |
| parent | fb2ddef15793bf75bdc13c9de997100b4f1d7927 (diff) | |
c99: in c99_math.h check that _USE_MATH_DEFINES is defined with MSVC
Reviewed-by: Jose Fonseca <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/c99_math.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/c99_math.h b/include/c99_math.h index 5d4f5359db4..0a359ebb762 100644 --- a/include/c99_math.h +++ b/include/c99_math.h @@ -40,6 +40,11 @@ #if defined(_MSC_VER) +/* This is to ensure that we get M_PI, etc. definitions */ +#if !defined(_USE_MATH_DEFINES) +#error _USE_MATH_DEFINES define required when building with MSVC +#endif + #if _MSC_VER < 1800 #define isfinite(x) _finite((double)(x)) #define isnan(x) _isnan((double)(x)) |