From c06e85147c3b7e75b4326362cd0e4443b7469071 Mon Sep 17 00:00:00 2001
From: Daniel James <daniel@calamity.org.uk>
Date: Sat, 21 May 2005 16:46:53 +0000
Subject: [PATCH] Write a better error message when the denormalised minimum
 float hash test fails.

[SVN r29118]
---
 hash/test/hash_float_test.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/hash/test/hash_float_test.cpp b/hash/test/hash_float_test.cpp
index 534e4bd..0879910 100644
--- a/hash/test/hash_float_test.cpp
+++ b/hash/test/hash_float_test.cpp
@@ -136,8 +136,14 @@ void float_tests(char const* name, T* = 0)
         if(x1(std::numeric_limits<T>::denorm_min()) == x1(zero)) {
             std::cout<<"x1(denorm_min) == x1(zero) == "<<x1(zero)<<"\n";
         }
-        BOOST_CHECK(x1(std::numeric_limits<T>::denorm_min()) ==
-            HASH_NAMESPACE::hash_value((T) std::numeric_limits<T>::denorm_min()));
+        BOOST_CHECK_MESSAGE(x1(std::numeric_limits<T>::denorm_min()) ==
+            HASH_NAMESPACE::hash_value(std::numeric_limits<T>::denorm_min()),
+            "x1(std::numeric_limits<T>::denorm_min()) = "
+                << x1(std::numeric_limits<T>::denorm_min())
+                << "\nhash_value(std::numeric_limits<T>::denorm_min()) = "
+                << HASH_NAMESPACE::hash_value(
+                    std::numeric_limits<T>::denorm_min())
+                << "\nx1(0) = "<<x1(0)<<"\n");
     }
 
 // NaN also causes borland to crash.