catch2/include/internal/catch_stream.hpp

/*
 *  catch_stream.hpp
 *  Catch
 *
 *  Created by Phil on 17/01/2011.
 *  Copyright 2011 Two Blue Cubes Ltd. All rights reserved.
 *
 *  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)
 *
 */

#ifndef TWOBLUECUBES_CATCH_STREAM_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_STREAM_HPP_INCLUDED

#include <stdexcept>
#include <cstdio>

namespace Catch
{    
    template<typename WriterF, size_t bufferSize=256>
    class StreamBufImpl : public StreamBufBase
    {
        char data[bufferSize];
        WriterF m_writer;
        
    public:
        ///////////////////////////////////////////////////////////////////////
        StreamBufImpl
        ()
        {
            setp( data, data + sizeof(data) );
        }

        ///////////////////////////////////////////////////////////////////////
        ~StreamBufImpl
        ()
        {
            sync();
        }
        
    private:
        ///////////////////////////////////////////////////////////////////////
        int	overflow
        (
            int c
        )
        {
            sync();
            
            if( c != EOF )
            {
                if( pbase() == epptr() )
                    m_writer( std::string( 1, static_cast<char>( c ) ) );
                else
                    sputc( static_cast<char>( c ) );
            }            
            return 0;
        }
        
        ///////////////////////////////////////////////////////////////////////
        int	sync
        ()
        {
            if( pbase() != pptr() )
            {
                m_writer( std::string( pbase(), static_cast<std::string::size_type>( pptr() - pbase() ) ) );
                setp( pbase(), epptr() );
            }
            return 0;
        }
    };
    
    ///////////////////////////////////////////////////////////////////////////
    ///////////////////////////////////////////////////////////////////////////

    struct OutputDebugWriter
    {
        ///////////////////////////////////////////////////////////////////////
        void operator()
        (
            const std::string &str
        )
        {
            writeToDebugConsole( str );
        }
    };
}

#endif // TWOBLUECUBES_CATCH_STREAM_HPP_INCLUDED