mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 23:10:06 +00:00
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/* w_expl.c -- long double version of w_exp.c.
|
|
* Conversion to long double by Ulrich Drepper,
|
|
* Cygnus Support, drepper@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[] = "$NetBSD: $";
|
|
#endif
|
|
|
|
/*
|
|
* wrapper expl(x)
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
|
|
long double __expl(long double x) /* wrapper exp */
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_expl(x);
|
|
#else
|
|
long double z = __ieee754_expl (x);
|
|
if (__glibc_unlikely (!isfinite (z) || z == 0)
|
|
&& isfinite (x) && _LIB_VERSION != _IEEE_)
|
|
return __kernel_standard_l (x, x, 206 + !!signbit (x));
|
|
|
|
return z;
|
|
#endif
|
|
}
|
|
hidden_def (__expl)
|
|
weak_alias (__expl, expl)
|