From 07449987c90864fceb487994b4aaa5170803ab24 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Sun, 7 Dec 2003 21:22:46 +0000
Subject: Update.

2003-12-07  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/i386/fpu/s_nexttowardf.c: Construct overflow value correctly.
	* sysdeps/i386/fpu/s_nexttoward.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_nexttoward.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_nexttoward.c: Likewise.
	* math/Makefile (tests): Add bug-nexttoward.
	* math/bug-nexttowward.c: New file.

	* sysdeps/generic/s_nextafter.c: Make sure overflow exception is set.
	* sysdeps/ieee754/flt-32/s_nextafterf.c: Likewise.
	* math/bug-nextafter.c (main): Add tests for overflow and negative
	values.
---
 math/bug-nextafter.c | 37 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

(limited to 'math/bug-nextafter.c')

diff --git a/math/bug-nextafter.c b/math/bug-nextafter.c
index 8aa849d..015c32d 100644
--- a/math/bug-nextafter.c
+++ b/math/bug-nextafter.c
@@ -1,3 +1,4 @@
+#include <fenv.h>
 #include <math.h>
 #include <float.h>
 #include <stdlib.h>
@@ -10,19 +11,53 @@ main (void)
 
   float i = INFINITY;
   float m = FLT_MAX;
+  feclearexcept (FE_ALL_EXCEPT);
   if (nextafterf (m, i) != i)
     {
-      puts ("nextafterf failed");
+      puts ("nextafterf+ failed");
+      ++result;
+    }
+  if (fetestexcept (FE_OVERFLOW) != 0)
+    {
+      puts ("nextafterf+ did not overflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nextafterf (-m, -i) != -i)
+    {
+      puts ("nextafterf- failed");
+      ++result;
+    }
+  if (fetestexcept (FE_OVERFLOW) != 0)
+    {
+      puts ("nextafterf- did not overflow");
       ++result;
     }
 
   double di = INFINITY;
   double dm = DBL_MAX;
+  feclearexcept (FE_ALL_EXCEPT);
   if (nextafter (dm, di) != di)
     {
+      puts ("nextafter+ failed");
+      ++result;
+    }
+  if (fetestexcept (FE_OVERFLOW) != 0)
+    {
+      puts ("nextafter+ did not overflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nextafter (-dm, -di) != -di)
+    {
       puts ("nextafter failed");
       ++result;
     }
+  if (fetestexcept (FE_OVERFLOW) != 0)
+    {
+      puts ("nextafter- did not overflow");
+      ++result;
+    }
 
   return result;
 }
-- 
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