vm: restore stacktrace on SIGSEGV
[minix.git] / lib / libm / src / s_ldexp.c
blob2f97ac5b72776604d551189c1b60ff28f2835383
1 /* @(#)s_ldexp0.c 5.1 93/09/24 */
2 /*
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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 * ====================================================
13 #include <sys/cdefs.h>
14 #if defined(LIBM_SCCS) && !defined(lint)
15 __RCSID("$NetBSD: s_ldexp.c,v 1.11 2010/04/23 19:17:07 drochner Exp $");
16 #endif
18 #include "namespace.h"
19 #include "math.h"
20 #include "math_private.h"
21 #include <errno.h>
23 double
24 ldexp(double value, int exp0)
26 if(!finite(value)||value==0.0) return value;
27 value = scalbn(value,exp0);
28 if(!finite(value)||value==0.0) errno = ERANGE;
29 return value;