Fixes #6186 (lexical_cast compliation error fixed, when wchar_t is a typedef for unsigned short. Test added)

[SVN r75864]

test/Jamfile.v2

@@ -14,7 +14,12 @@
 
 # bring in rules for testing
 import testing ;
+import feature ;
 
+feature.feature nowchar : on :
+ composite optional propagated link-incompatible ;
+feature.compose <nowchar>on : <cxxflags>/Zc:wchar_t- ; 
+ 
 test-suite conversion
   : [ run implicit_cast.cpp ]
     [ compile-fail implicit_cast_fail.cpp ]
@@ -30,6 +35,6 @@ test-suite conversion
     [ run lexical_cast_inf_nan_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
     [ run lexical_cast_containers_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
     [ run lexical_cast_empty_input_test.cpp ../../test/build//boost_unit_test_framework/<link>static ]
+    [ run lexical_cast_typedefed_wchar_test.cpp ../../test/build//boost_unit_test_framework/<link>static : : : <toolset>msvc:<nowchar>on : : ]
   ;
-
       

test/lexical_cast_typedefed_wchar_test.cpp

@@ -0,0 +1,50 @@
+//  Unit test for boost::lexical_cast.
+//
+//  See http://www.boost.org for most recent version, including documentation.
+//
+//  Copyright Antony Polukhin, 2011.
+//
+//  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).
+
+#include <boost/config.hpp>
+
+#if defined(__INTEL_COMPILER)
+#pragma warning(disable: 193 383 488 981 1418 1419)
+#elif defined(BOOST_MSVC)
+#pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
+#endif
+
+#include <boost/lexical_cast.hpp>
+#include <boost/test/unit_test.hpp>
+
+void test_typedefed_wchar_t();
+
+using namespace boost;
+
+unit_test::test_suite *init_unit_test_suite(int, char *[])
+{
+    unit_test::test_suite *suite =
+        BOOST_TEST_SUITE("lexical_cast unit test for typedefed wchar_t (mainly for MSVC)");
+    suite->add(BOOST_TEST_CASE(&test_typedefed_wchar_t));
+
+    return suite;
+}
+
+
+void test_typedefed_wchar_t()
+{
+#ifdef BOOST_MSVC
+    BOOST_CHECK((boost::is_same<wchar_t, unsigned short>::value));
+#endif
+
+    BOOST_CHECK_EQUAL(lexical_cast<int>(L"1000"), 1000);
+}
+
+
+
+
+
+
+