move enable_if tests into their own subdirectory

[SVN r25649]

enable_if/test/member_templates.cpp

@@ -0,0 +1,43 @@
+// Boost enable_if library
+
+// Copyright 2003 © The Trustees of Indiana University.
+
+// 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)
+
+//    Authors: Jaakko Järvi (jajarvi at osl.iu.edu)
+//             Jeremiah Willcock (jewillco at osl.iu.edu)
+//             Andrew Lumsdaine (lums at osl.iu.edu)
+
+#include <boost/test/minimal.hpp>
+
+#include <boost/utility/enable_if.hpp>
+#include <boost/type_traits/is_arithmetic.hpp>
+
+using boost::enable_if;
+using boost::disable_if;
+using boost::is_arithmetic;
+
+struct container {
+  template <class T>
+  typename enable_if<is_arithmetic<T>, bool>::type
+  arithmetic_object(const T&, const int* /* disambiguate */ = 0) {return true;}
+
+  template <class T>
+  typename disable_if<is_arithmetic<T>, bool>::type
+  arithmetic_object(const T&) {return false;}
+};
+
+int test_main(int, char*[])
+{
+ 
+  BOOST_CHECK(container().arithmetic_object(1));
+  BOOST_CHECK(container().arithmetic_object(1.0));
+
+  BOOST_CHECK(!container().arithmetic_object("1"));  
+  BOOST_CHECK(!container().arithmetic_object(static_cast<void*>(0)));  
+
+  return 0;
+}
+