/* @(#)s_ldexp.c 1.3 95/01/18 */ /* * ==================================================== * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. * * Developed at SunSoft, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this * software is freely granted, provided that this notice * is preserved. * ==================================================== */ #include "fdlibm.h" #include <errno.h> #ifdef __STDC__ double ieee_ldexp(double value, int exp) #else double ieee_ldexp(value, exp) double value; int exp; #endif { if(!ieee_finite(value)||value==0.0) return value; value = ieee_scalbn(value,exp); if(!ieee_finite(value)||value==0.0) errno = ERANGE; return value; }