From 7ce331c01ce6eb7b3f5c715a38a24359da9c6ee2 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 22 Nov 2001 14:04:29 +0000 Subject: Totally rework the math library, this time based on the MacOs X math library (which is itself based on the math lib from FreeBSD). -Erik --- libm/s_ldexp.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 libm/s_ldexp.c (limited to 'libm/s_ldexp.c') diff --git a/libm/s_ldexp.c b/libm/s_ldexp.c new file mode 100644 index 000000000..5e7313e6e --- /dev/null +++ b/libm/s_ldexp.c @@ -0,0 +1,34 @@ +#if !defined(__ppc__) +/* @(#)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[] = "$NetBSD: s_ldexp.c,v 1.6 1995/05/10 20:47:40 jtc Exp $"; +#endif + +#include "math.h" +#include "math_private.h" +#include + +#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; +} +#endif /* !__ppc__ */ -- cgit v1.2.3