1/* @(#)s_ldexp.c 5.1 93/09/24 */ 2/* 3 * ==================================================== 4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 5 * 6 * Developed at SunPro, a Sun Microsystems, Inc. business. 7 * Permission to use, copy, modify, and distribute this 8 * software is freely granted, provided that this notice 9 * is preserved. 10 * ==================================================== 11 */ 12 13#if defined(LIBM_SCCS) && !defined(lint) 14static char rcsid[] = "$NetBSD: s_ldexp.c,v 1.6 1995/05/10 20:47:40 jtc Exp $"; 15#endif 16 17#include "math.h" 18#include "math_private.h" 19#include <errno.h> 20 21#ifdef __STDC__ 22 double __ldexp(double value, int exp) 23#else 24 double __ldexp(value, exp) 25 double value; int exp; 26#endif 27{ 28 if(!__finite(value)||value==0.0) return value; 29 value = __scalbn(value,exp); 30 if(!__finite(value)||value==0.0) __set_errno (ERANGE); 31 return value; 32} 33weak_alias (__ldexp, ldexp) 34#ifdef NO_LONG_DOUBLE 35strong_alias (__ldexp, __ldexpl) 36weak_alias (__ldexp, ldexpl) 37#endif 38