From d210ca02ec8a5ba034946c57b85c2f3e503a6017 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Mon, 19 Feb 2001 23:07:28 +0000
Subject: Update.

	* sysdeps/generic/e_scalb.c: Set invalid exception for invalid
	parameters.
	* sysdeps/generic/e_scalbf.c: New file.
	* sysdeps/generic/e_scalbl.c: New file.
---
 sysdeps/generic/e_scalb.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

(limited to 'sysdeps/generic/e_scalb.c')

diff --git a/sysdeps/generic/e_scalb.c b/sysdeps/generic/e_scalb.c
index d9a326b2b2..2e4094390a 100644
--- a/sysdeps/generic/e_scalb.c
+++ b/sysdeps/generic/e_scalb.c
@@ -5,7 +5,7 @@
  *
  * Developed at SunPro, a Sun Microsystems, Inc. business.
  * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
+ * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
  */
@@ -16,10 +16,11 @@ static char rcsid[] = "$NetBSD: e_scalb.c,v 1.6 1995/05/10 20:46:09 jtc Exp $";
 
 /*
  * __ieee754_scalb(x, fn) is provide for
- * passing various standard test suite. One 
+ * passing various standard test suite. One
  * should use scalbn() instead.
  */
 
+#include <fenv.h>
 #include "math.h"
 #include "math_private.h"
 
@@ -48,10 +49,17 @@ static char rcsid[] = "$NetBSD: e_scalb.c,v 1.6 1995/05/10 20:46:09 jtc Exp $";
 	    else if (x == 0)
 	      return x;
 	    else if (!__finite (x))
-	      return __nan ("");
+	      {
+		feraiseexcept (FE_INVALID);
+		return __nan ("");
+	      }
 	    else       return x/(-fn);
 	}
-	if (__rint(fn)!=fn) return __nan ("");
+	if (__rint(fn)!=fn)
+	  {
+	    feraiseexcept (FE_INVALID);
+	    return __nan ("");
+	  }
 	if ( fn > 65000.0) return __scalbn(x, 65000);
 	if (-fn > 65000.0) return __scalbn(x,-65000);
 	return __scalbn(x,(int)fn);
-- 
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