/* s_ldexpf.c -- float version of s_ldexp.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. * ==================================================== */ #include <sys/cdefs.h> #if defined(LIBM_SCCS) && !defined(lint) __RCSID("$NetBSD: s_ldexpf.c,v 1.5 1999/07/02 15:37:43 simonb Exp $"); #endif #include "math.h" #include "math_private.h" #include <errno.h> float ldexpf(float value, int exp) { if(!isfinite(value)||value==(float)0.0) return value; value = scalbnf(value,exp); if(!isfinite(value)||value==(float)0.0) errno = ERANGE; return value; }