sl@0: //  (C) Copyright Gennadiy Rozental 2001-2005.
sl@0: //  Distributed under the Boost Software License, Version 1.0.
sl@0: //  (See accompanying file LICENSE_1_0.txt or copy at 
sl@0: //  http://www.boost.org/LICENSE_1_0.txt)
sl@0: 
sl@0: //  See http://www.boost.org/libs/test for the library home page.
sl@0: //
sl@0: //  File        : $RCSfile: predicate_result.hpp,v $
sl@0: //
sl@0: //  Version     : $Revision: 1.7 $
sl@0: //
sl@0: //  Description : enhanced result for test predicate that include message explaining failure
sl@0: // ***************************************************************************
sl@0: 
sl@0: #ifndef BOOST_TEST_PREDICATE_RESULT_HPP_012705GER
sl@0: #define BOOST_TEST_PREDICATE_RESULT_HPP_012705GER
sl@0: 
sl@0: // Boost.Test
sl@0: #include <boost/test/utils/class_properties.hpp>
sl@0: #include <boost/test/utils/wrap_stringstream.hpp>
sl@0: #include <boost/test/utils/basic_cstring/basic_cstring.hpp>
sl@0: 
sl@0: // Boost
sl@0: #include <boost/shared_ptr.hpp>
sl@0: #include <boost/detail/workaround.hpp>
sl@0: 
sl@0: // STL
sl@0: #include <cstddef>          // for std::size_t
sl@0: 
sl@0: #include <boost/test/detail/suppress_warnings.hpp>
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: namespace boost {
sl@0: 
sl@0: namespace test_tools {
sl@0: 
sl@0: // ************************************************************************** //
sl@0: // **************                predicate_result              ************** //
sl@0: // ************************************************************************** //
sl@0: 
sl@0: class BOOST_TEST_DECL predicate_result {
sl@0:     typedef unit_test::const_string      const_string;
sl@0: public:
sl@0:     // Constructor
sl@0:     predicate_result( bool pv_ ) 
sl@0:     : p_predicate_value( pv_ )
sl@0:     {}
sl@0: 
sl@0:     template<typename BoolConvertable>
sl@0:     predicate_result( BoolConvertable const& pv_ ) : p_predicate_value( !!pv_ ) {}
sl@0: 
sl@0:     bool                operator!() const           { return !p_predicate_value; }
sl@0:     void                operator=( bool pv_ )       { p_predicate_value.value = pv_; }
sl@0: 
sl@0:     // Public properties
sl@0:     BOOST_READONLY_PROPERTY( bool, (predicate_result) ) p_predicate_value;
sl@0: 
sl@0:     // Access methods
sl@0:     bool                has_empty_message() const   { return !m_message; }
sl@0:     wrap_stringstream&  message()
sl@0:     {
sl@0:         if( !m_message )
sl@0:             m_message.reset( new wrap_stringstream );
sl@0: 
sl@0:         return *m_message;
sl@0:     }
sl@0:     const_string        message() const                   { return !m_message ? const_string() : const_string( m_message->str() ); }
sl@0: 
sl@0: private:
sl@0:     // Data members
sl@0:     shared_ptr<wrap_stringstream> m_message;
sl@0: };
sl@0: 
sl@0: } // namespace test_tools
sl@0: 
sl@0: } // namespace boost
sl@0: 
sl@0: //____________________________________________________________________________//
sl@0: 
sl@0: #include <boost/test/detail/enable_warnings.hpp>
sl@0: 
sl@0: // ***************************************************************************
sl@0: //  Revision History :
sl@0: //
sl@0: //  $Log: predicate_result.hpp,v $
sl@0: //  Revision 1.7  2005/12/14 05:16:49  rogeeff
sl@0: //  dll support introduced
sl@0: //
sl@0: //  Revision 1.6  2005/03/23 21:02:17  rogeeff
sl@0: //  Sunpro CC 5.3 fixes
sl@0: //
sl@0: //  Revision 1.5  2005/02/20 08:27:06  rogeeff
sl@0: //  This a major update for Boost.Test framework. See release docs for complete list of fixes/updates
sl@0: //
sl@0: //  Revision 1.4  2005/02/03 20:39:12  rogeeff
sl@0: //  m_message zero init for sunpro
sl@0: //
sl@0: //  Revision 1.3  2005/02/01 06:40:06  rogeeff
sl@0: //  copyright update
sl@0: //  old log entries removed
sl@0: //  minor stilistic changes
sl@0: //  depricated tools removed
sl@0: //
sl@0: //  Revision 1.2  2005/01/31 20:07:19  rogeeff
sl@0: //  Sunpro CC 5.3 workarounds
sl@0: //
sl@0: //  Revision 1.1  2005/01/30 03:24:51  rogeeff
sl@0: //  extended_predicate_result renamed ot predicate_result and moved into separate file
sl@0: //
sl@0: // ***************************************************************************
sl@0: 
sl@0: #endif // BOOST_TEST_PREDICATE_RESULT_HPP_012705GER