From ecdb77c48a9122f6dd439ad2f80b105e648d14e1 Mon Sep 17 00:00:00 2001
From: John Maddock <john@johnmaddock.co.uk>
Date: Fri, 13 Jul 2012 16:13:26 +0000
Subject: [PATCH] Don't test inequality of NaN's unless IEE compliance is
 claimed.

[SVN r79471]
---
 test/limits_test.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/test/limits_test.cpp b/test/limits_test.cpp
index 163c684e..3a4cd3a6 100644
--- a/test/limits_test.cpp
+++ b/test/limits_test.cpp
@@ -154,9 +154,12 @@ void test_float_limits(const T &, const char * msg)
     // If one of these fail, your compiler may be optimizing incorrectly,
     // or the standard library is incorrectly configured.
     BOOST_CHECK(! (qnan == 42));
-    BOOST_CHECK(! (qnan == qnan));
     BOOST_CHECK(qnan != 42);
-    BOOST_CHECK(qnan != qnan);
+    if(lim::is_iec559)
+    {
+      BOOST_CHECK(! (qnan == qnan));
+      BOOST_CHECK(qnan != qnan);
+    }
 
     // The following tests may cause arithmetic traps.
     // BOOST_CHECK(! (qnan < 42));