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| author | Etienne Jacques <etienne.rtp@gmail.com> | 2017-02-10 22:16:10 -0800 |
|---|---|---|
| committer | Etienne Jacques <etienne.rtp@gmail.com> | 2017-02-10 22:16:10 -0800 |
| commit | 130c559e83c6dedc94b820411a9e9d0995c6bcc0 (patch) | |
| tree | 4ce40ff7e7d5bde8c5da3f99e59b470b666b062e /src | |
| parent | 442f439a6d3a8752834c365e0c195d3c9e5a042f (diff) | |
| download | PROJ-130c559e83c6dedc94b820411a9e9d0995c6bcc0.tar.gz PROJ-130c559e83c6dedc94b820411a9e9d0995c6bcc0.zip | |
Fix compilation with gcc with -std=c11 option.
Diffstat (limited to 'src')
| -rw-r--r-- | src/projects.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/projects.h b/src/projects.h index 33af9ca7..f64d1a4f 100644 --- a/src/projects.h +++ b/src/projects.h @@ -105,6 +105,12 @@ extern double hypot(double, double); #define M_PI 3.14159265358979310 #define M_PI_2 1.57079632679489660 #define M_PI_4 0.78539816339744828 +#define M_2_PI 0.63661977236758134308 +#endif + +/* M_SQRT2 might be missing */ +#ifndef M_SQRT2 +#define M_SQRT2 1.41421356237309504880 #endif /* some more useful math constants and aliases */ |