diff options
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/math/math.h b/math/math.h index 7bd56c9648..27963ef6dc 100644 --- a/math/math.h +++ b/math/math.h @@ -1158,6 +1158,23 @@ iszero (__T __val) # define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */ #endif +/* GNU extension to provide float constants with similar names. */ +#ifdef __USE_GNU +# define M_Ef 2.7182818284590452354f /* e */ +# define M_LOG2Ef 1.4426950408889634074f /* log_2 e */ +# define M_LOG10Ef 0.43429448190325182765f /* log_10 e */ +# define M_LN2f 0.69314718055994530942f /* log_e 2 */ +# define M_LN10f 2.30258509299404568402f /* log_e 10 */ +# define M_PIf 3.14159265358979323846f /* pi */ +# define M_PI_2f 1.57079632679489661923f /* pi/2 */ +# define M_PI_4f 0.78539816339744830962f /* pi/4 */ +# define M_1_PIf 0.31830988618379067154f /* 1/pi */ +# define M_2_PIf 0.63661977236758134308f /* 2/pi */ +# define M_2_SQRTPIf 1.12837916709551257390f /* 2/sqrt(pi) */ +# define M_SQRT2f 1.41421356237309504880f /* sqrt(2) */ +# define M_SQRT1_2f 0.70710678118654752440f /* 1/sqrt(2) */ +#endif + /* The above constants are not adequate for computation using `long double's. Therefore we provide as an extension constants with similar names as a GNU extension. Provide enough digits for the 128-bit IEEE quad. */ |