newlib-cygwin/newlib/libm/mathfp/erf_gamma.c

40 lines
950 B
C

/* erf_gamma.c -- float version of er_gamma.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.
* ====================================================
*
*/
/* gammaf_r(x, signgamp)
* Reentrant version of the logarithm of the Gamma function
* with user provided pointer for the sign of Gamma(x).
*
* Method: See lgammaf_r
*/
#include "fdlibm.h"
#ifdef __STDC__
float gammaf_r(float x, int *signgamp)
#else
float gammaf_r(x,signgamp)
float x; int *signgamp;
#endif
{
return expf (lgammaf_r(x,signgamp));
}
float gammaf(float x)
{
return gammaf_r(x, &(_REENT_SIGNGAM(_REENT)));
}