2.5-18.1

1 files changed, 65 insertions, 0 deletions

diff --git a/math/w_scalbl.c b/math/w_scalbl.c
new file mode 100644
index 0000000000..c8a45d460d
--- /dev/null
+++ b/math/w_scalbl.c
@@ -0,0 +1,65 @@
+/* w_scalbl.c -- long double version of w_scalb.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@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.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * wrapper scalbl(long double x, long double fn) is provide for
+ * passing various standard test suite. One
+ * should use scalbnl() instead.
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+#include <errno.h>
+
+#ifdef __STDC__
+#ifdef _SCALB_INT
+	long double __scalbl(long double x, int fn)	/* wrapper scalbl */
+#else
+	long double __scalbl(long double x, long double fn)/* wrapper scalbl */
+#endif
+#else
+	long double __scalbl(x,fn)			/* wrapper scalbl */
+#ifdef _SCALB_INT
+	long double x; int fn;
+#else
+	long double x,fn;
+#endif
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_scalbl(x,fn);
+#else
+	long double z;
+	z = __ieee754_scalbl(x,fn);
+	if(_LIB_VERSION != _SVID_) return z;
+	if(!(__finitel(z)||__isnanl(z))&&__finitel(x)) {
+	    return __kernel_standard(x,(double)fn,232); /* scalb overflow */
+	}
+	if(z==0.0&&z!=x) {
+	    return __kernel_standard(x,(double)fn,233); /* scalb underflow */
+	}
+#ifndef _SCALB_INT
+	if(!__finitel(fn)) __set_errno (ERANGE);
+#endif
+	return z;
+#endif
+}
+weak_alias (__scalbl, scalbl)