/*
 * test_boost_test_decorator_enable_if -- Test case exposing
 *   compilation problem with g++ (not clang++) against Boost trunk
 *   svn rev. <=76217 (after 1.48.0 release) due to ambiguity between
 *   template<class Cond, class T> struct boost::enable_if and class
 *   boost::unit_test::decorator::enable_if in
 *   boost/typeof/native.hpp.
 *
 * Copyright (C) 2011 Torsten Maehne
 *
 * 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)
 */

/*!
 * \file    test_boost_test_decorator_enable_if.cpp
 *
 * \brief   Test case exposing compilation problem with g++ (not
 *          clang++) against Boost trunk svn rev. <=76217 (after
 *          1.48.0 release) due to ambiguity between template<class
 *          Cond, class T> struct boost::enable_if and class
 *          boost::unit_test::decorator::enable_if in
 *          boost/typeof/native.hpp.
 *
 * This test case compiles correctly against Boost 1.48.0 using Apple
 * g++ 4.2.1, MacPorts g++ 4.5.3 and 4.6.2 as well as Apple clang++
 * 3.0 on Mac OS X Lion 10.7.2 and Xcode 4.2.1.
 *
 * It fails to compile against Boost trunk until at least svn
 * rev. 76217 using any of the mentioned g++ versions. Surprisingly,
 * clang++ 3.0 is still able to correctly compile the test case.
 *
 * This test case is derived from
 * test_signed_integer_output_with_karma.cpp in Trac ticket #6126
 * <https://svn.boost.org/trac/boost/ticket/6126>. During the
 * discussion of ticket #6126 on the Boost-Spirit-general mailing
 * list, Jeroen Habraken identified the header
 * boost/test/tree/decorator.hpp as the origin for the compilation
 * failure of the test case agains Boost trunk. He found the cause to
 * be an ambiguity:
 *
 * boost/typeof/native.hpp:30:9: error: reference to 'enable_if' is ambiguous
 * boost/utility/enable_if.hpp:36:10: error: candidates are:
 *   template<class Cond, class T> struct boost::enable_if and
 *   class boost::unit_test::decorator::enable_if
 *
 * As enable_if is often used without being fully qualified this
 * breaks in a major fashion. Since boost/test/tree/decorator.hpp seems
 * to be quite new (added 2011-10-02 11:00:16 +0200) it might be best
 * fixed there.
 *
 * For details, please cf. to:
 *  <http://sourceforge.net/mailarchive/forum.php?thread_name=CAGCnmH11u2%2Bvfef9v8YpPnbv1cN%3Da5Px2xSu%3DKTnaKBve2vTwQ%40mail.gmail.com&forum_name=spirit-general>
 *
 * \author  Torsten Maehne
 * \date    2011-12-29
 * \version $Id$
 */
#define BOOST_TEST_MODULE test_boost_test_decorator_enable_if
#include <boost/test/included/unit_test.hpp>
#include <boost/typeof/native.hpp>

//! \test Dummy test.
BOOST_AUTO_TEST_CASE(test_dummy)
{
  // do nothing
}