glibc/math/w_lgammaf_r.c
Ulrich Drepper 0ac5ae2335 Optimize libm
libm is now somewhat integrated with gcc's -ffinite-math-only option
and lots of the wrapper functions have been optimized.
2011-10-12 11:27:51 -04:00

38 lines
979 B
C

/* w_lgammaf_r.c -- float version of w_lgamma_r.c.
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
*/
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/*
* wrapper float lgammaf_r(float x, int *signgamp)
*/
#include <math.h>
#include <math_private.h>
float
__lgammaf_r(float x, int *signgamp)
{
float y = __ieee754_lgammaf_r(x,signgamp);
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_r, lgammaf_r)