0,0 → 1,48 |
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
/* w_acoshf.c -- float version of w_acosh.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. |
* ==================================================== |
* |
*/ |
|
#if defined(LIBM_SCCS) && !defined(lint) |
static char rcsid[] = "$Id: w_acoshf.c,v 1.1 1994/08/10 20:33:28 jtc Exp $"; |
#endif |
|
/* |
* wrapper acoshf(x) |
*/ |
|
#include "math.h" |
#include "math_private.h" |
|
#ifdef __STDC__ |
float acoshf(float x) /* wrapper acoshf */ |
#else |
float acoshf(x) /* wrapper acoshf */ |
float x; |
#endif |
{ |
#ifdef _IEEE_LIBM |
return __ieee754_acoshf(x); |
#else |
float z; |
z = __ieee754_acoshf(x); |
if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z; |
if(x<(float)1.0) { |
/* acosh(x<1) */ |
return (float)__kernel_standard((double)x,(double)x,129); |
} else |
return z; |
#endif |
} |