diff options
Diffstat (limited to 'math/w_lgammaf.c')
| -rw-r--r-- | math/w_lgammaf.c | 45 |
1 files changed, 16 insertions, 29 deletions
diff --git a/math/w_lgammaf.c b/math/w_lgammaf.c index 9747e92..f3166df 100644 --- a/math/w_lgammaf.c +++ b/math/w_lgammaf.c @@ -13,40 +13,27 @@ * ==================================================== */ -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: w_lgammaf.c,v 1.3 1995/05/10 20:49:30 jtc Exp $"; -#endif - #include <math.h> #include <math_private.h> -#ifdef __STDC__ - float __lgammaf(float x) -#else - float __lgammaf(x) - float x; -#endif +float +__lgammaf(float x) { -#ifdef _IEEE_LIBM - return __ieee754_lgammaf_r(x,&signgam); -#else - float y; int local_signgam = 0; - y = __ieee754_lgammaf_r(x,&local_signgam); - if (_LIB_VERSION != _ISOC_) - /* ISO C99 does not define the global variable. */ - signgam = local_signgam; - if(_LIB_VERSION == _IEEE_) return y; - if(!__finitef(y)&&__finitef(x)) { - if(__floorf(x)==x&&x<=(float)0.0) - /* lgamma pole */ - return (float)__kernel_standard((double)x,(double)x,115); - else - /* lgamma overflow */ - return (float)__kernel_standard((double)x,(double)x,114); - } else - return y; -#endif + float y = __ieee754_lgammaf_r(x, + _LIB_VERSION != _ISOC_ + /* ISO C99 does not define the + global variable. */ + ? &signgam + : &local_signgam); + if(__builtin_expect(!__finitef(y), 0) + && __finitef(x) && _LIB_VERSION != _IEEE_) + return __kernel_standard_f(x, x, + __floorf(x)==x&&x<=0.0f + ? 115 /* lgamma pole */ + : 114); /* lgamma overflow */ + + return y; } weak_alias (__lgammaf, lgammaf) strong_alias (__lgammaf, __gammaf) |