// include/from_str.hh // This file is part of libpbe; see http://svn.chezphil.org/libpbe/ // (C) 2009 Philip Endecott // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // any later version. // // This program 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 General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #ifndef libpbe_from_str_hh #define libpbe_from_str_hh #include #include namespace pbe { template struct from_str_helper { T operator()(std::string s) { std::istringstream strm(s); T t; strm>>t; return t; } }; template <> struct from_str_helper { std::string operator()(std::string s) { return s; } }; template <> struct from_str_helper { std::string operator()(const char* s) { return s; } }; template T from_str(std::string s) { return from_str_helper()(s); } template T from_str(const char* s) { return from_str_helper()(s); } }; #endif