forked from KolibriOS/kolibrios
6496d04506
This version of menuetlibc was taken from revision 4743, right before I made any changes git-svn-id: svn://kolibrios.org@4973 a494cfbc-eb01-0410-851d-a64ba20cac60
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
|
|
/* w_acosf.c -- float version of w_acos.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_acosf.c,v 1.1 1994/08/10 20:33:23 jtc Exp $";
|
|
#endif
|
|
|
|
/*
|
|
* wrap_acosf(x)
|
|
*/
|
|
|
|
#include "math.h"
|
|
#include "math_private.h"
|
|
|
|
|
|
#ifdef __STDC__
|
|
float acosf(float x) /* wrapper acosf */
|
|
#else
|
|
float acosf(x) /* wrapper acosf */
|
|
float x;
|
|
#endif
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_acosf(x);
|
|
#else
|
|
float z;
|
|
z = __ieee754_acosf(x);
|
|
if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
|
|
if(fabsf(x)>(float)1.0) {
|
|
/* acosf(|x|>1) */
|
|
return (float)__kernel_standard((double)x,(double)x,101);
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|