Chris@16: //  (C) Copyright Gennadiy Rozental 2005-2008.
Chris@16: //  Distributed under the Boost Software License, Version 1.0.
Chris@16: //  (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org/libs/test for the library home page.
Chris@16: //
Chris@16: //  File        : $RCSfile$
Chris@16: //
Chris@101: //  Version     : $Revision$
Chris@16: //
Chris@16: //  Description : supplies offline implementation for the Test Tools
Chris@16: // ***************************************************************************
Chris@16: 
Chris@16: #ifndef BOOST_TEST_TEST_TOOLS_IPP_012205GER
Chris@16: #define BOOST_TEST_TEST_TOOLS_IPP_012205GER
Chris@16: 
Chris@16: // Boost.Test
Chris@16: #include <boost/test/test_tools.hpp>
Chris@16: #include <boost/test/unit_test_log.hpp>
Chris@16: #include <boost/test/output_test_stream.hpp>
Chris@16: #include <boost/test/framework.hpp>
Chris@16: #include <boost/test/execution_monitor.hpp> // execution_aborted
Chris@16: #include <boost/test/unit_test_suite_impl.hpp>
Chris@16: 
Chris@16: // Boost
Chris@16: #include <boost/config.hpp>
Chris@16: 
Chris@16: // STL
Chris@16: #include <fstream>
Chris@16: #include <string>
Chris@16: #include <cstring>
Chris@16: #include <cctype>
Chris@16: #include <cwchar>
Chris@16: #include <stdexcept>
Chris@16: #include <ios>
Chris@16: 
Chris@16: // !! should we use #include <cstdarg>
Chris@16: #include <stdarg.h>
Chris@16: 
Chris@16: #include <boost/test/detail/suppress_warnings.hpp>
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: # ifdef BOOST_NO_STDC_NAMESPACE
Chris@16: namespace std { using ::strcmp; using ::strlen; using ::isprint; }
Chris@16: #if !defined( BOOST_NO_CWCHAR )
Chris@16: namespace std { using ::wcscmp; }
Chris@16: #endif
Chris@16: # endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: namespace test_tools {
Chris@16: 
Chris@16: // ************************************************************************** //
Chris@16: // **************                print_log_value               ************** //
Chris@16: // ************************************************************************** //
Chris@16: 
Chris@16: void
Chris@16: print_log_value<char>::operator()( std::ostream& ostr, char t )
Chris@16: {
Chris@16:     if( (std::isprint)( static_cast<unsigned char>(t) ) )
Chris@16:         ostr << '\'' << t << '\'';
Chris@16:     else
Chris@16:         ostr << std::hex
Chris@16: #if BOOST_TEST_USE_STD_LOCALE
Chris@16:         << std::showbase
Chris@16: #else
Chris@16:         << "0x"
Chris@16: #endif
Chris@16:         << static_cast<int>(t);
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: void
Chris@16: print_log_value<unsigned char>::operator()( std::ostream& ostr, unsigned char t )
Chris@16: {
Chris@16:     ostr << std::hex
Chris@16:         // showbase is only available for new style streams:
Chris@16: #if BOOST_TEST_USE_STD_LOCALE
Chris@16:         << std::showbase
Chris@16: #else
Chris@16:         << "0x"
Chris@16: #endif
Chris@16:         << static_cast<int>(t);
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: void
Chris@16: print_log_value<char const*>::operator()( std::ostream& ostr, char const* t )
Chris@16: {
Chris@16:     ostr << ( t ? t : "null string" );
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: void
Chris@16: print_log_value<wchar_t const*>::operator()( std::ostream& ostr, wchar_t const* t )
Chris@16: {
Chris@16:     ostr << ( t ? t : L"null string" );
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: namespace tt_detail {
Chris@16: 
Chris@16: // ************************************************************************** //
Chris@16: // **************            TOOL BOX Implementation           ************** //
Chris@16: // ************************************************************************** //
Chris@16: 
Chris@16: using ::boost::unit_test::lazy_ostream;
Chris@16: 
Chris@16: bool
Chris@16: check_impl( predicate_result const& pr, lazy_ostream const& check_descr,
Chris@16:             const_string file_name, std::size_t line_num,
Chris@16:             tool_level tl, check_type ct,
Chris@16:             std::size_t num_of_args, ... )
Chris@16: {
Chris@16:     using namespace unit_test;
Chris@16: 
Chris@16:     if( !framework::is_initialized() )
Chris@16:         throw std::runtime_error( "can't use testing tools before framework is initialized" );
Chris@16: 
Chris@16:     if( !!pr )
Chris@16:         tl = PASS;
Chris@16: 
Chris@16:     log_level    ll;
Chris@16:     char const*  prefix;
Chris@16:     char const*  suffix;
Chris@16:        
Chris@16:     switch( tl ) {
Chris@16:     case PASS:
Chris@16:         ll      = log_successful_tests;
Chris@16:         prefix  = "check ";
Chris@16:         suffix  = " passed";
Chris@16:         break;
Chris@16:     case WARN:
Chris@16:         ll      = log_warnings;
Chris@16:         prefix  = "condition ";
Chris@16:         suffix  = " is not satisfied";
Chris@16:         break;
Chris@16:     case CHECK:
Chris@16:         ll      = log_all_errors;
Chris@16:         prefix  = "check ";
Chris@16:         suffix  = " failed";
Chris@16:         break;
Chris@16:     case REQUIRE:
Chris@16:         ll      = log_fatal_errors;
Chris@16:         prefix  = "critical check ";
Chris@16:         suffix  = " failed";
Chris@16:         break;
Chris@16:     default:
Chris@16:         return true;
Chris@16:     }
Chris@16: 
Chris@16:     switch( ct ) {
Chris@16:     case CHECK_PRED:
Chris@16:         unit_test_log << unit_test::log::begin( file_name, line_num ) 
Chris@16:                       << ll << prefix << check_descr << suffix;
Chris@16:         
Chris@16:         if( !pr.has_empty_message() )
Chris@16:             unit_test_log << ". " << pr.message();
Chris@16:         
Chris@16:         unit_test_log << unit_test::log::end();
Chris@16:         break;
Chris@16: 
Chris@16:     case CHECK_MSG:
Chris@16:         unit_test_log << unit_test::log::begin( file_name, line_num ) << ll;
Chris@16:         
Chris@16:         if( tl == PASS )
Chris@16:             unit_test_log << prefix << "'" << check_descr << "'" << suffix;
Chris@16:         else
Chris@16:             unit_test_log << check_descr;
Chris@16:         
Chris@16:         if( !pr.has_empty_message() )
Chris@16:             unit_test_log << ". " << pr.message();
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::end();
Chris@16:         break;
Chris@16: 
Chris@16:     case CHECK_EQUAL: 
Chris@16:     case CHECK_NE: 
Chris@16:     case CHECK_LT: 
Chris@16:     case CHECK_LE: 
Chris@16:     case CHECK_GT: 
Chris@16:     case CHECK_GE: {
Chris@16:         static char const* check_str [] = { " == ", " != ", " < " , " <= ", " > " , " >= " };
Chris@16:         static char const* rever_str [] = { " != ", " == ", " >= ", " > " , " <= ", " < "  };
Chris@16: 
Chris@16:         va_list args;
Chris@16: 
Chris@16:         va_start( args, num_of_args );
Chris@16:         char const*         arg1_descr  = va_arg( args, char const* );
Chris@16:         lazy_ostream const* arg1_val    = va_arg( args, lazy_ostream const* );
Chris@16:         char const*         arg2_descr  = va_arg( args, char const* );
Chris@16:         lazy_ostream const* arg2_val    = va_arg( args, lazy_ostream const* );
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::begin( file_name, line_num ) 
Chris@16:                       << ll << prefix << arg1_descr << check_str[ct-CHECK_EQUAL] << arg2_descr << suffix;
Chris@16: 
Chris@16:         if( tl != PASS )
Chris@16:             unit_test_log << " [" << *arg1_val << rever_str[ct-CHECK_EQUAL] << *arg2_val << "]" ;
Chris@16: 
Chris@16:         va_end( args );
Chris@16:         
Chris@16:         if( !pr.has_empty_message() )
Chris@16:             unit_test_log << ". " << pr.message();
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::end();
Chris@16:         break;
Chris@16:     }
Chris@16: 
Chris@16:     case CHECK_CLOSE:
Chris@16:     case CHECK_CLOSE_FRACTION: {
Chris@16:         va_list args;
Chris@16: 
Chris@16:         va_start( args, num_of_args );
Chris@16:         char const*         arg1_descr  = va_arg( args, char const* );
Chris@16:         lazy_ostream const* arg1_val    = va_arg( args, lazy_ostream const* );
Chris@16:         char const*         arg2_descr  = va_arg( args, char const* );
Chris@16:         lazy_ostream const* arg2_val    = va_arg( args, lazy_ostream const* );
Chris@16:         /* toler_descr = */               va_arg( args, char const* );
Chris@16:         lazy_ostream const* toler_val   = va_arg( args, lazy_ostream const* );
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::begin( file_name, line_num ) << ll;
Chris@16: 
Chris@16:         unit_test_log << "difference{" << pr.message() << (ct == CHECK_CLOSE ? "%" : "")
Chris@16:                       << "} between " << arg1_descr << "{" << *arg1_val
Chris@16:                       << "} and "               << arg2_descr << "{" << *arg2_val
Chris@16:                       << ( tl == PASS ? "} doesn't exceed " : "} exceeds " )
Chris@16:                       << *toler_val;
Chris@16:         if( ct == CHECK_CLOSE )
Chris@16:             unit_test_log << "%";
Chris@16: 
Chris@16:         va_end( args );
Chris@16:         
Chris@16:         unit_test_log << unit_test::log::end();
Chris@16:         break;
Chris@16:     }
Chris@16:     case CHECK_SMALL: {
Chris@16:         va_list args;
Chris@16: 
Chris@16:         va_start( args, num_of_args );
Chris@16:         char const*         arg1_descr  = va_arg( args, char const* );
Chris@16:         lazy_ostream const* arg1_val    = va_arg( args, lazy_ostream const* );
Chris@16:         /* toler_descr = */               va_arg( args, char const* );
Chris@16:         lazy_ostream const* toler_val   = va_arg( args, lazy_ostream const* );
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::begin( file_name, line_num ) << ll;
Chris@16: 
Chris@16:         unit_test_log << "absolute value of " << arg1_descr << "{" << *arg1_val << "}" 
Chris@16:                       << ( tl == PASS ? " doesn't exceed " : " exceeds " )
Chris@16:                       << *toler_val;
Chris@16: 
Chris@16:         va_end( args );
Chris@16:         
Chris@16:         if( !pr.has_empty_message() )
Chris@16:             unit_test_log << ". " << pr.message();
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::end();
Chris@16:         break;
Chris@16:     }
Chris@16: 
Chris@16:     case CHECK_PRED_WITH_ARGS: {
Chris@16:         unit_test_log << unit_test::log::begin( file_name, line_num ) 
Chris@16:                       << ll << prefix << check_descr;
Chris@16: 
Chris@16:         // print predicate call description
Chris@16:         {
Chris@16:             va_list args;
Chris@16:             va_start( args, num_of_args );
Chris@16: 
Chris@16:             unit_test_log << "( ";
Chris@16:             for( std::size_t i = 0; i < num_of_args; ++i ) {
Chris@16:                 unit_test_log << va_arg( args, char const* );
Chris@16:                 va_arg( args, lazy_ostream const* ); // skip argument value;
Chris@16:                 
Chris@16:                 if( i != num_of_args-1 )
Chris@16:                     unit_test_log << ", ";
Chris@16:             }
Chris@16:             unit_test_log << " )" << suffix;
Chris@16:             va_end( args );
Chris@16:         }
Chris@16:                         
Chris@16:         if( tl != PASS ) {
Chris@16:             va_list args;
Chris@16:             va_start( args, num_of_args );
Chris@16: 
Chris@16:             unit_test_log << " for ( ";
Chris@16:             for( std::size_t i = 0; i < num_of_args; ++i ) {
Chris@16:                 va_arg( args, char const* ); // skip argument description;            
Chris@16:                 unit_test_log << *va_arg( args, lazy_ostream const* );
Chris@16:                 
Chris@16:                 if( i != num_of_args-1 )
Chris@16:                     unit_test_log << ", ";
Chris@16:             }
Chris@16:             unit_test_log << " )";
Chris@16:             va_end( args );
Chris@16:         }
Chris@16:        
Chris@16:         if( !pr.has_empty_message() )
Chris@16:             unit_test_log << ". " << pr.message();
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::end();
Chris@16:         break;
Chris@16:     }
Chris@16: 
Chris@16:     case CHECK_EQUAL_COLL: {
Chris@16:         va_list args;
Chris@16: 
Chris@16:         va_start( args, num_of_args );
Chris@16:         char const* left_begin_descr    = va_arg( args, char const* );
Chris@16:         char const* left_end_descr      = va_arg( args, char const* );
Chris@16:         char const* right_begin_descr   = va_arg( args, char const* );
Chris@16:         char const* right_end_descr     = va_arg( args, char const* );
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::begin( file_name, line_num ) 
Chris@16:                       << ll << prefix 
Chris@16:                       << "{ " << left_begin_descr  << ", " << left_end_descr  << " } == { " 
Chris@16:                               << right_begin_descr << ", " << right_end_descr << " }"
Chris@16:                       << suffix;
Chris@16: 
Chris@16:         va_end( args );
Chris@16:         
Chris@16:         if( !pr.has_empty_message() )
Chris@16:             unit_test_log << ". " << pr.message();
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::end();
Chris@16:         break;
Chris@16:     }
Chris@16: 
Chris@16:     case CHECK_BITWISE_EQUAL: {
Chris@16:         va_list args;
Chris@16: 
Chris@16:         va_start( args, num_of_args );
Chris@16:         char const* left_descr    = va_arg( args, char const* );
Chris@16:         char const* right_descr   = va_arg( args, char const* );
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::begin( file_name, line_num )
Chris@16:                       << ll << prefix << left_descr  << " =.= " << right_descr << suffix;
Chris@16: 
Chris@16:         va_end( args );
Chris@16:         
Chris@16:         if( !pr.has_empty_message() )
Chris@16:             unit_test_log << ". " << pr.message();
Chris@16: 
Chris@16:         unit_test_log << unit_test::log::end();
Chris@16:         break;
Chris@16:     }
Chris@16:     }
Chris@16: 
Chris@16:     switch( tl ) {
Chris@16:     case PASS:
Chris@16:         framework::assertion_result( true );
Chris@16:         return true;
Chris@16: 
Chris@16:     case WARN:
Chris@16:         return false;
Chris@16: 
Chris@16:     case CHECK:
Chris@16:         framework::assertion_result( false );
Chris@16:         return false;
Chris@16:         
Chris@16:     case REQUIRE:
Chris@16:         framework::assertion_result( false );
Chris@16: 
Chris@16:         framework::test_unit_aborted( framework::current_test_case() );
Chris@16: 
Chris@16:         throw execution_aborted();
Chris@16:     }
Chris@16: 
Chris@16:     return true;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: predicate_result
Chris@16: equal_impl( char const* left, char const* right )
Chris@16: {
Chris@16:     return (left && right) ? std::strcmp( left, right ) == 0 : (left == right);
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: #if !defined( BOOST_NO_CWCHAR )
Chris@16: 
Chris@16: predicate_result
Chris@16: equal_impl( wchar_t const* left, wchar_t const* right )
Chris@16: {
Chris@16:     return (left && right) ? std::wcscmp( left, right ) == 0 : (left == right);
Chris@16: }
Chris@16: 
Chris@16: #endif // !defined( BOOST_NO_CWCHAR )
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: bool
Chris@16: is_defined_impl( const_string symbol_name, const_string symbol_value )
Chris@16: {
Chris@16:     symbol_value.trim_left( 2 );
Chris@16:     return symbol_name != symbol_value;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: } // namespace tt_detail
Chris@16: 
Chris@16: // ************************************************************************** //
Chris@16: // **************               output_test_stream             ************** //
Chris@16: // ************************************************************************** //
Chris@16: 
Chris@16: struct output_test_stream::Impl
Chris@16: {
Chris@16:     std::fstream    m_pattern;
Chris@16:     bool            m_match_or_save;
Chris@16:     bool            m_text_or_binary;
Chris@16:     std::string     m_synced_string;
Chris@16: 
Chris@16:     char            get_char()
Chris@16:     {
Chris@16:         char res;
Chris@16:         do {
Chris@16:             m_pattern.get( res );
Chris@16:         } while( m_text_or_binary && res == '\r' && !m_pattern.fail() && !m_pattern.eof() );
Chris@16: 
Chris@16:         return res;
Chris@16:     }
Chris@16: 
Chris@16:     void            check_and_fill( predicate_result& res )
Chris@16:     {
Chris@16:         if( !res.p_predicate_value )
Chris@16:             res.message() << "Output content: \"" << m_synced_string << '\"';
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: output_test_stream::output_test_stream( const_string pattern_file_name, bool match_or_save, bool text_or_binary )
Chris@16: : m_pimpl( new Impl )
Chris@16: {
Chris@16:     if( !pattern_file_name.is_empty() ) {
Chris@16:         std::ios::openmode m = match_or_save ? std::ios::in : std::ios::out;
Chris@16:         if( !text_or_binary )
Chris@16:             m |= std::ios::binary;
Chris@16: 
Chris@16:         m_pimpl->m_pattern.open( pattern_file_name.begin(), m );
Chris@16: 
Chris@16:         BOOST_WARN_MESSAGE( m_pimpl->m_pattern.is_open(),
Chris@16:                              "Can't open pattern file " << pattern_file_name
Chris@16:                                 << " for " << (match_or_save ? "reading" : "writing") );
Chris@16:     }
Chris@16: 
Chris@16:     m_pimpl->m_match_or_save    = match_or_save;
Chris@16:     m_pimpl->m_text_or_binary   = text_or_binary;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: output_test_stream::~output_test_stream()
Chris@16: {
Chris@16:     delete m_pimpl;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: predicate_result
Chris@16: output_test_stream::is_empty( bool flush_stream )
Chris@16: {
Chris@16:     sync();
Chris@16: 
Chris@16:     result_type res( m_pimpl->m_synced_string.empty() );
Chris@16: 
Chris@16:     m_pimpl->check_and_fill( res );
Chris@16: 
Chris@16:     if( flush_stream )
Chris@16:         flush();
Chris@16: 
Chris@16:     return res;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: predicate_result
Chris@16: output_test_stream::check_length( std::size_t length_, bool flush_stream )
Chris@16: {
Chris@16:     sync();
Chris@16: 
Chris@16:     result_type res( m_pimpl->m_synced_string.length() == length_ );
Chris@16: 
Chris@16:     m_pimpl->check_and_fill( res );
Chris@16: 
Chris@16:     if( flush_stream )
Chris@16:         flush();
Chris@16: 
Chris@16:     return res;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: predicate_result
Chris@16: output_test_stream::is_equal( const_string arg, bool flush_stream )
Chris@16: {
Chris@16:     sync();
Chris@16: 
Chris@16:     result_type res( const_string( m_pimpl->m_synced_string ) == arg );
Chris@16: 
Chris@16:     m_pimpl->check_and_fill( res );
Chris@16: 
Chris@16:     if( flush_stream )
Chris@16:         flush();
Chris@16: 
Chris@16:     return res;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: predicate_result
Chris@16: output_test_stream::match_pattern( bool flush_stream )
Chris@16: {
Chris@16:     sync();
Chris@16: 
Chris@16:     result_type result( true );
Chris@16: 
Chris@16:     if( !m_pimpl->m_pattern.is_open() ) {
Chris@16:         result = false;
Chris@16:         result.message() << "Pattern file can't be opened!";
Chris@16:     }
Chris@16:     else {
Chris@16:         if( m_pimpl->m_match_or_save ) {
Chris@16:             for ( std::string::size_type i = 0; i < m_pimpl->m_synced_string.length(); ++i ) {
Chris@16:                 char c = m_pimpl->get_char();
Chris@16: 
Chris@16:                 result = !m_pimpl->m_pattern.fail() &&
Chris@16:                          !m_pimpl->m_pattern.eof()  &&
Chris@16:                          (m_pimpl->m_synced_string[i] == c);
Chris@16: 
Chris@16:                 if( !result ) {
Chris@16:                     std::string::size_type suffix_size  = (std::min)( m_pimpl->m_synced_string.length() - i,
Chris@16:                                                                     static_cast<std::string::size_type>(5) );
Chris@16: 
Chris@16:                     // try to log area around the mismatch
Chris@16:                     result.message() << "Mismatch at position " << i << '\n'
Chris@16:                         << "..." << m_pimpl->m_synced_string.substr( i, suffix_size ) << "..." << '\n'
Chris@16:                         << "..." << c;
Chris@16: 
Chris@16:                     std::string::size_type counter = suffix_size;
Chris@16:                     while( --counter ) {
Chris@16:                         char c = m_pimpl->get_char();
Chris@16: 
Chris@16:                         if( m_pimpl->m_pattern.fail() || m_pimpl->m_pattern.eof() )
Chris@16:                             break;
Chris@16: 
Chris@16:                         result.message() << c;
Chris@16:                     }
Chris@16: 
Chris@16:                     result.message() << "...";
Chris@16: 
Chris@16:                     // skip rest of the bytes. May help for further matching
Chris@16:                     m_pimpl->m_pattern.ignore( 
Chris@16:                         static_cast<std::streamsize>( m_pimpl->m_synced_string.length() - i - suffix_size) );
Chris@16:                     break;
Chris@16:                 }
Chris@16:             }
Chris@16:         }
Chris@16:         else {
Chris@16:             m_pimpl->m_pattern.write( m_pimpl->m_synced_string.c_str(),
Chris@16:                                       static_cast<std::streamsize>( m_pimpl->m_synced_string.length() ) );
Chris@16:             m_pimpl->m_pattern.flush();
Chris@16:         }
Chris@16:     }
Chris@16: 
Chris@16:     if( flush_stream )
Chris@16:         flush();
Chris@16: 
Chris@16:     return result;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: void
Chris@16: output_test_stream::flush()
Chris@16: {
Chris@16:     m_pimpl->m_synced_string.erase();
Chris@16: 
Chris@16: #ifndef BOOST_NO_STRINGSTREAM
Chris@16:     str( std::string() );
Chris@16: #else
Chris@16:     seekp( 0, std::ios::beg );
Chris@16: #endif
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: std::size_t
Chris@16: output_test_stream::length()
Chris@16: {
Chris@16:     sync();
Chris@16: 
Chris@16:     return m_pimpl->m_synced_string.length();
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: void
Chris@16: output_test_stream::sync()
Chris@16: {
Chris@16: #ifdef BOOST_NO_STRINGSTREAM
Chris@16:     m_pimpl->m_synced_string.assign( str(), pcount() );
Chris@16:     freeze( false );
Chris@16: #else
Chris@16:     m_pimpl->m_synced_string = str();
Chris@16: #endif
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: } // namespace test_tools
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: #include <boost/test/detail/enable_warnings.hpp>
Chris@16: 
Chris@16: #endif // BOOST_TEST_TEST_TOOLS_IPP_012205GER