0,0 → 1,33 |
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
/* @(#)s_ldexp.c 5.1 93/09/24 */ |
/* |
* ==================================================== |
* 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: s_ldexp.c,v 1.4 1994/08/10 20:32:37 jtc Exp $"; |
#endif |
|
#include "math.h" |
#include "math_private.h" |
#include <errno.h> |
|
#ifdef __STDC__ |
double ldexp(double value, int exp) |
#else |
double ldexp(value, exp) |
double value; int exp; |
#endif |
{ |
if(!finite(value)||value==0.0) return value; |
value = scalbn(value,exp); |
if(!finite(value)||value==0.0) errno = ERANGE; |
return value; |
} |