2 Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 #ifndef DCPOMATIC_RAW_CONVERT_H
22 #define DCPOMATIC_RAW_CONVERT_H
24 #include "safe_stringstream.h"
27 /** A sort-of version of boost::lexical_cast that does uses the "C"
28 * locale (i.e. no thousands separators and a . for the decimal separator).
30 template <typename P, typename Q>
32 raw_convert (Q v, int precision = 16)
35 s.imbue (std::locale::classic ());
36 s << std::setprecision (precision);
38 /* If the s >> r below fails to convert anything, we want r to
39 be left as a defined value. This construct (I believe) achieves
40 this by setting r to the default value of type P, even if P
50 raw_convert<std::string, char const *> (char const * v, int);
54 raw_convert<std::string, char*> (char* v, int);
58 raw_convert<std::string, std::string> (std::string v, int);