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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/generic/w_scalb.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/generic/w_scalb.c')
-rw-r--r--sysdeps/generic/w_scalb.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/sysdeps/generic/w_scalb.c b/sysdeps/generic/w_scalb.c
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+++ b/sysdeps/generic/w_scalb.c
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+/* @(#)w_scalb.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: w_scalb.c,v 1.6 1995/05/10 20:49:48 jtc Exp $";
+#endif
+
+/*
+ * wrapper scalb(double x, double fn) is provide for
+ * passing various standard test suite. One
+ * should use scalbn() instead.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#include <errno.h>
+
+#ifdef __STDC__
+#ifdef _SCALB_INT
+	double __scalb(double x, int fn)		/* wrapper scalb */
+#else
+	double __scalb(double x, double fn)	/* wrapper scalb */
+#endif
+#else
+	double __scalb(x,fn)			/* wrapper scalb */
+#ifdef _SCALB_INT
+	double x; int fn;
+#else
+	double x,fn;
+#endif
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_scalb(x,fn);
+#else
+	double z;
+	z = __ieee754_scalb(x,fn);
+	if(_LIB_VERSION != _SVID_) return z;
+	if(!(__finite(z)||__isnan(z))&&__finite(x)) {
+	    return __kernel_standard(x,(double)fn,32); /* scalb overflow */
+	}
+	if(z==0.0&&z!=x) {
+	    return __kernel_standard(x,(double)fn,33); /* scalb underflow */
+	}
+#ifndef _SCALB_INT
+	if(!__finite(fn)) __set_errno (ERANGE);
+#endif
+	return z;
+#endif
+}
+weak_alias (__scalb, scalb)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__scalb, __scalbl)
+weak_alias (__scalb, scalbl)
+#endif