Add extra overloads for hash_value to cover all the specializations of boost::hash. Fixes 1095

[SVN r38881]

hash/doc/ref.xml

@@ -479,6 +479,36 @@ for(; first != last; ++first)
             Implementation of the hash function.
         </purpose>
 
+        <signature>
+          <type>std::size_t</type>
+          <parameter name="val"><paramtype>bool</paramtype></parameter>
+        </signature>
+
+        <signature>
+          <type>std::size_t</type>
+          <parameter name="val"><paramtype>char</paramtype></parameter>
+        </signature>
+
+        <signature>
+          <type>std::size_t</type>
+          <parameter name="val"><paramtype>signed char</paramtype></parameter>
+        </signature>
+
+        <signature>
+          <type>std::size_t</type>
+          <parameter name="val"><paramtype>unsigned char</paramtype></parameter>
+        </signature>
+
+        <signature>
+          <type>std::size_t</type>
+          <parameter name="val"><paramtype>short</paramtype></parameter>
+        </signature>
+
+        <signature>
+          <type>std::size_t</type>
+          <parameter name="val"><paramtype>unsigned short</paramtype></parameter>
+        </signature>
+
         <signature>
           <type>std::size_t</type>
           <parameter name="val"><paramtype>int</paramtype></parameter>

hash/test/Jamfile.v2

@@ -8,6 +8,7 @@ import testing ;
 project hash-tests
     : requirements
         <toolset>gcc:<define>_GLIBCXX_DEBUG
+        "<toolset>gcc:<cxxflags>-Wsign-promo -Wextra"
     ;
 
 test-suite functional/hash