From 8a0efa53e44919bcf5ccb1d3353618a82afdf8bc Mon Sep 17 00:00:00 2001
From: Christopher Faylor <me@cgf.cx>
Date: Thu, 17 Feb 2000 19:39:52 +0000
Subject: import newlib-2000-02-17 snapshot

---
 newlib/libm/mathfp/e_scalb.c | 55 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 newlib/libm/mathfp/e_scalb.c

(limited to 'newlib/libm/mathfp/e_scalb.c')

diff --git a/newlib/libm/mathfp/e_scalb.c b/newlib/libm/mathfp/e_scalb.c
new file mode 100644
index 000000000..c4056e03b
--- /dev/null
+++ b/newlib/libm/mathfp/e_scalb.c
@@ -0,0 +1,55 @@
+
+/* @(#)e_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.
+ * ====================================================
+ */
+
+/*
+ * __ieee754_scalb(x, fn) is provide for
+ * passing various standard test suite. One 
+ * should use scalbn() instead.
+ */
+
+#include "fdlibm.h"
+
+#ifndef _DOUBLE_IS_32BITS
+
+#ifdef _SCALB_INT
+#ifdef __STDC__
+	double scalb(double x, int fn)
+#else
+	double scalb(x,fn)
+	double x; int fn;
+#endif
+#else
+#ifdef __STDC__
+	double scalb(double x, double fn)
+#else
+	double scalb(x,fn)
+	double x, fn;
+#endif
+#endif
+{
+#ifdef _SCALB_INT
+	return scalbn(x,fn);
+#else
+	if (isnan(x)||isnan(fn)) return x*fn;
+	if (!finite(fn)) {
+	    if(fn>0.0) return x*fn;
+	    else       return x/(-fn);
+	}
+	if (rint(fn)!=fn) return (fn-fn)/(fn-fn);
+	if ( fn > 65000.0) return scalbn(x, 65000);
+	if (-fn > 65000.0) return scalbn(x,-65000);
+	return scalbn(x,(int)fn);
+#endif
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */
-- 
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