source: box/trunk/lib/common/Conversion.h @ 217

// --------------------------------------------------------------------------
//
// File
//              Name:    Conversion.h
//              Purpose: Convert between various types
//              Created: 9/4/04
//
// --------------------------------------------------------------------------

#ifndef CONVERSION__H
#define CONVERSION__H

#include <string>

namespace BoxConvert
{
        // --------------------------------------------------------------------------
        //
        // Function
        //              Name:    BoxConvert::Convert<to_type, from_type>(to_type &, from_type)
        //              Purpose: Convert from types to types
        //              Created: 9/4/04
        //
        // --------------------------------------------------------------------------
        template<typename to_type, typename from_type>
        inline to_type Convert(from_type From)
        {
                // Default conversion, simply use C++ conversion
                return From;
        }

        // Specialise for string -> integer
        int32_t _ConvertStringToInt(const char *pString, int Size);
        template<>
        inline int32_t Convert<int32_t, const std::string &>(const std::string &rFrom)
        {
                return BoxConvert::_ConvertStringToInt(rFrom.c_str(), 32);
        }
        template<>
        inline int16_t Convert<int16_t, const std::string &>(const std::string &rFrom)
        {
                return BoxConvert::_ConvertStringToInt(rFrom.c_str(), 16);
        }
        template<>
        inline int8_t Convert<int8_t, const std::string &>(const std::string &rFrom)
        {
                return BoxConvert::_ConvertStringToInt(rFrom.c_str(), 8);
        }
        template<>
        inline int32_t Convert<int32_t, const char *>(const char *pFrom)
        {
                return BoxConvert::_ConvertStringToInt(pFrom, 32);
        }
        template<>
        inline int16_t Convert<int16_t, const char *>(const char *pFrom)
        {
                return BoxConvert::_ConvertStringToInt(pFrom, 16);
        }
        template<>
        inline int8_t Convert<int8_t, const char *>(const char *pFrom)
        {
                return BoxConvert::_ConvertStringToInt(pFrom, 8);
        }
        
        // Specialise for integer -> string
        void _ConvertIntToString(std::string &rTo, int32_t From);
        template<>
        inline std::string Convert<std::string, int32_t>(int32_t From)
        {
                std::string r;
                BoxConvert::_ConvertIntToString(r, From);
                return r;
        }
        template<>
        inline std::string Convert<std::string, int16_t>(int16_t From)
        {
                std::string r;
                BoxConvert::_ConvertIntToString(r, From);
                return r;
        }
        template<>
        inline std::string Convert<std::string, int8_t>(int8_t From)
        {
                std::string r;
                BoxConvert::_ConvertIntToString(r, From);
                return r;
        }
        
        // Specialise for bool -> string
        template<>
        inline std::string Convert<std::string, bool>(bool From)
        {
                return std::string(From?"true":"false");
        }
};

#endif // CONVERSION__H