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| author | Rich Felker <dalias@aerifal.cx> | 2011-02-14 18:41:25 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-02-14 18:41:25 -0500 |
| commit | 74eea628cf43355ba2b227f0bb3c31697d637761 (patch) | |
| tree | 9fe300db7b7fa7f541bdfa41176d0f6333851e74 /include/math.h | |
| parent | 80695b1d1e64a026c473a33965e680444e863e34 (diff) | |
| download | musl-74eea628cf43355ba2b227f0bb3c31697d637761.tar.gz musl-74eea628cf43355ba2b227f0bb3c31697d637761.tar.xz musl-74eea628cf43355ba2b227f0bb3c31697d637761.zip | |
extensive header cleanup for standards conformance & correctness
thanks to Peter Mazinger (psm) for pointing many of these issues out and submitting a patch on which this commit is loosely based
Diffstat (limited to 'include/math.h')
| -rw-r--r-- | include/math.h | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/include/math.h b/include/math.h index cc9befb7..fffdf4f7 100644 --- a/include/math.h +++ b/include/math.h @@ -6,20 +6,6 @@ #define __NEED___uint64_t #include <bits/alltypes.h> -#define M_E 2.7182818284590452354 /* e */ -#define M_LOG2E 1.4426950408889634074 /* log_2 e */ -#define M_LOG10E 0.43429448190325182765 /* log_10 e */ -#define M_LN2 0.69314718055994530942 /* log_e 2 */ -#define M_LN10 2.30258509299404568402 /* log_e 10 */ -#define M_PI 3.14159265358979323846 /* pi */ -#define M_PI_2 1.57079632679489661923 /* pi/2 */ -#define M_PI_4 0.78539816339744830962 /* pi/4 */ -#define M_1_PI 0.31830988618379067154 /* 1/pi */ -#define M_2_PI 0.63661977236758134308 /* 2/pi */ -#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */ -#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */ -#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */ - #define __MAKE_FLOAT(i) (((union { int __i; float __f; }){ .__i = i }).__f) #define NAN __MAKE_FLOAT(0x7fc00000) @@ -286,15 +272,31 @@ double trunc(double); float truncf(float); long double truncl(long double); -/* XSI stuff */ +#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) +#define M_E 2.7182818284590452354 /* e */ +#define M_LOG2E 1.4426950408889634074 /* log_2 e */ +#define M_LOG10E 0.43429448190325182765 /* log_10 e */ +#define M_LN2 0.69314718055994530942 /* log_e 2 */ +#define M_LN10 2.30258509299404568402 /* log_e 10 */ +#define M_PI 3.14159265358979323846 /* pi */ +#define M_PI_2 1.57079632679489661923 /* pi/2 */ +#define M_PI_4 0.78539816339744830962 /* pi/4 */ +#define M_1_PI 0.31830988618379067154 /* 1/pi */ +#define M_2_PI 0.63661977236758134308 /* 2/pi */ +#define M_2_SQRTPI 1.12837916709551257390 /* 2/sqrt(pi) */ +#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */ +#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */ double j0(double); double j1(double); double jn(int, double); -double scalb(double, double); double y0(double); double y1(double); double yn(int, double); - extern int signgam; +#endif + +#ifdef _GNU_SOURCE +double scalb(double, double); +#endif #endif |