Hash: A single unified algorithm for hashing floats.

Attempts to automatically use a binary hash for floats where it's known to
work, and then use the generic hash algorithm as a fallback.

[SVN r80177]

test/Jamfile.v2

@@ -1,5 +1,5 @@
 
-# Copyright 2005-2011 Daniel James.
+# Copyright 2005-2012 Daniel James.
 # Distributed under the Boost Software License, Version 1.0. (See accompanying
 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
@@ -66,4 +66,17 @@ test-suite functional/hash_no_ext
         [ run link_test.cpp link_test_2.cpp : : : <define>BOOST_HASH_NO_EXTENSIONS : no_ext_link_test ]
     ;
 
+# Tests to see if the floating point hash is using the binary hash.
+# Not run normally because on some platforms these should fail.
+test-suite functional/hash_no_generic_float
+    :
+        [ run hash_float_test.cpp
+            : : : <define>BOOST_HASH_DETAIL_TEST_WITHOUT_GENERIC
+            : hash_float_test_no_generic ]
+        [ run hash_long_double_test.cpp
+            : : : <define>BOOST_HASH_DETAIL_TEST_WITHOUT_GENERIC
+            : hash_long_double_test_no_generic ]
+    ;
+explicit functional/hash_no_generic_float ;
+
 build-project ../examples ;