main page Faq Report bug Feature request Download Doc C++ Modules Namespaces Classes Alphabetical Compound List Files Members Files Members Examples Related Page ximol/str_cast.hpp Go to the documentation of this file. /*****************************************************************************\ * * * library XiMoL * * Copyright (C) 2002, 2003, 2004 Florent Tournois * * * * This library is free software; you can redistribute it and/or * * modify it under the terms of the GNU Lesser General Public * * License as published by the Free Software Foundation; either * * version 2.1 of the License, or (at your option) any later version. * * * * This library is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * * Lesser General Public License for more details. * * * * You should have received a copy of the GNU Lesser General Public * * License along with this library; if not, write to the Free Software * * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * * \*****************************************************************************/ //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ /** \file \brief cast to string. \author Tournois Florent \version 1.0 $Id: str_cast.hpp,v 1.9 2004/03/04 18:45:29 tournois Exp $ $Log: str_cast.hpp,v $ Revision 1.9 2004/03/04 18:45:29 tournois Compatibility with gcc. Revision 1.8 2004/03/03 22:05:30 tournois Add a short roadmap. Add BOOST_NO_STD_WSTRING for gcc. Revision 1.7 2004/02/22 10:27:32 tournois Add some doc. Revision 1.6 2004/02/22 09:54:19 tournois Change years on the copyright. Revision 1.5 2004/02/09 12:41:25 tournois Fix bug about error message. Add a read_optionnal_space before the stag read. Revision 1.4 2004/01/18 11:40:58 tournois Add the pattern facet. Revision 1.3 2003/12/09 19:57:27 tournois Fix some bugs about attributes classes. Revision 1.2 2003/11/27 15:31:55 hfp partially adapted to vc6. Revision 1.1 2003/11/18 18:54:51 tournois Add str_cast and drop the transformation.hpp file. */ //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #ifndef XIMOL_STR_CAST_HPP_ #define XIMOL_STR_CAST_HPP_ #include <ximol/namespace_defs.hpp> #include <ximol/export_defs.hpp> #include <ximol/typedefs.hpp> XIMOL_BEGIN_NAMESPACE template < typename Char_dest, typename Char_source > struct converter { static Char_dest get(Char_source); static ::std::basic_string<Char_dest> get(const ::std::basic_string<Char_source> & wstr); }; template <> struct XIMOL_EXPORT converter<char, wchar_t> { static char get(wchar_t); static ::std::string get(const ::std::wstring & wstr); }; template <> struct XIMOL_EXPORT converter<char, char> { static char get(char); static ::std::string get(const ::std::string & str); }; template <> struct XIMOL_EXPORT converter<wchar_t, char> { static wchar_t get(char); static ::std::wstring get(const ::std::string & str); }; template <> struct XIMOL_EXPORT converter<wchar_t, wchar_t> { static wchar_t get(wchar_t); static ::std::wstring get(const ::std::wstring & wstr); }; // full generic: undefined template<typename T> struct str {}; // specialized for string template<> struct str< ::std::string > { template<typename T> static ::std::string cast(const T& t) { ::std::ostringstream ss; ss << t; return ss.str(); }; static ::std::string cast(const ::std::string & t) { return converter<char,char>::get(t); }; static ::std::string cast(const ::std::wstring & t) { return converter<char,wchar_t>::get(t); }; static ::std::string cast(const char * t) { return converter<char,char>::get(t); }; static ::std::string cast(const wchar_t * t) { return converter<char,wchar_t>::get(t); }; static ::std::string cast(char t) { return ::std::string(1,converter<char,char>::get(t)); }; static ::std::string cast(wchar_t t) { return ::std::string(1,converter<char,wchar_t>::get(t)); }; }; // specialized for const string template<> struct str< ::std::string const>: public str< ::std::string> {}; template<> struct str<char const *>: public str< ::std::string> {}; template<> struct str<char const []>: public str< ::std::string> {}; template<> struct str< ::std::wstring> { template<typename T> static ::std::wstring cast(const T& t) { ::std::ostringstream ss; ss << t; return converter<wchar_t, char>::get(ss.str()); }; static ::std::wstring cast(const ::std::string & t) { return converter<wchar_t,char>::get(t); }; static ::std::wstring cast(const ::std::wstring & t) { return converter<wchar_t,wchar_t>::get(t); }; static ::std::wstring cast(const char * t) { return converter<wchar_t,char>::get(t); }; static ::std::wstring cast(const wchar_t * t) { return converter<wchar_t,wchar_t>::get(t); }; static ::std::wstring cast(char t) { return ::std::wstring(1,converter<wchar_t,char>::get(t)); }; static ::std::wstring cast(wchar_t t) { return ::std::wstring(1,converter<wchar_t,wchar_t>::get(t)); }; }; // specialized for const wstring template<> struct str< ::std::wstring const>: public str< ::std::wstring> {}; template<> struct str<wchar_t const *>: public str< ::std::wstring> {}; template<> struct str<wchar_t const []>: public str< ::std::wstring> {}; XIMOL_END_NAMESPACE #endif // #ifndef XIMOL_STR_CAST_HPP_

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