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| author | Ulrich Drepper <drepper@gmail.com> | 2011-10-12 11:27:51 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-10-12 11:27:51 -0400 |
| commit | 0ac5ae2335292908f39031b1ea9fe8edce433c0f (patch) | |
| tree | f9d26c8abc0de39d18d4c13e70f6022cdc6b461f /sysdeps/ieee754/ldbl-96/e_atanhl.c | |
| parent | a843a204a3e8a0dd53584dad3668771abaec84ac (diff) | |
| download | glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.tar.gz glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.tar.xz glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.zip | |
Optimize libm
libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
Diffstat (limited to 'sysdeps/ieee754/ldbl-96/e_atanhl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-96/e_atanhl.c | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/sysdeps/ieee754/ldbl-96/e_atanhl.c b/sysdeps/ieee754/ldbl-96/e_atanhl.c index fdcd1e9fe8..5a2aebef3e 100644 --- a/sysdeps/ieee754/ldbl-96/e_atanhl.c +++ b/sysdeps/ieee754/ldbl-96/e_atanhl.c @@ -14,10 +14,6 @@ * ==================================================== */ -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: $"; -#endif - /* __ieee754_atanhl(x) * Method : * 1.Reduced x to positive by atanh(-x) = -atanh(x) @@ -26,7 +22,7 @@ static char rcsid[] = "$NetBSD: $"; * atanhl(x) = --- * log(1 + -------) = 0.5 * log1p(2 * --------) * 2 1 - x 1 - x * - * For x<0.5 + * For x<0.5 * atanhl(x) = 0.5*log1pl(2x+2x*x/(1-x)) * * Special cases: @@ -39,24 +35,12 @@ static char rcsid[] = "$NetBSD: $"; #include "math.h" #include "math_private.h" -#ifdef __STDC__ static const long double one = 1.0, huge = 1e4900L; -#else -static long double one = 1.0, huge = 1e4900L; -#endif -#ifdef __STDC__ static const long double zero = 0.0; -#else -static double long zero = 0.0; -#endif -#ifdef __STDC__ - long double __ieee754_atanhl(long double x) -#else - long double __ieee754_atanhl(x) - long double x; -#endif +long double +__ieee754_atanhl(long double x) { long double t; int32_t ix; @@ -77,3 +61,4 @@ static double long zero = 0.0; t = 0.5*__log1pl((x+x)/(one-x)); if(se<=0x7fff) return t; else return -t; } +strong_alias (__ieee754_atanhl, __atanhl_finite) |