more tests

[SVN r1891]

test/Jamfile

@@ -10,6 +10,7 @@ import testing ;
        : [ run lexicographic_test.cpp ]
          [ run lex_performance_test.cpp ]
          [ run named_params_test.cpp ]
+         [ run named_params_sfinae.cpp ]
 	 [ run enable_if_constructors.cpp ]
          [ run enable_if_member_templates.cpp ]
          [ run enable_if_dummy_arg_disambiguation.cpp ]

test/named_params_sfinae.cpp

@@ -0,0 +1,56 @@
+// Copyright David Abrahams, Daniel Wallin 2003. Use, modification and 
+// distribution is subject to 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
+
+#include <boost/named_params.hpp>
+#include <cassert>
+#include <string>
+#include <boost/type_traits/is_convertible.hpp>
+
+namespace test
+{
+  using boost::keyword;
+  using boost::keywords;
+  using boost::named_param;
+
+  struct name_t; keyword<name_t> name;
+  struct value_t; keyword<value_t> value;
+  
+  struct f_keywords
+      : keywords<
+            named_param<
+                name_t
+              , boost::mpl::true_
+              , boost::is_convertible<boost::mpl::_, std::string>
+            >
+          , named_param<
+                value_t
+              , boost::mpl::true_
+              , boost::is_convertible<boost::mpl::_, float>
+            >
+        >
+  {};
+
+  BOOST_NAMED_PARAMS_FUN(void, f, 0, 2, f_keywords)
+  {
+      std::string s = p[name | "bar"];
+      float v = p[value | 3.f];
+      
+      assert(s == "foo");
+      assert(v == 3.f);
+  }
+
+} // namespace test
+
+int main()
+{
+    using test::name;
+    using test::value;    
+    using test::f;
+
+    f("foo");
+    f("foo", 3.f);
+    f(value = 3.f, name = "foo");
+}
+