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/*
Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
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
(at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef DCPOMATIC_RAW_CONVERT_H
#define DCPOMATIC_RAW_CONVERT_H
#include "safe_stringstream.h"
#include <iomanip>
/** A sort-of version of boost::lexical_cast that does uses the "C"
* locale (i.e. no thousands separators and a . for the decimal separator).
*/
template <typename P, typename Q>
P
raw_convert (Q v, int precision = 16)
{
SafeStringStream s;
s.imbue (std::locale::classic ());
s << std::setprecision (precision);
s << v;
/* If the s >> r below fails to convert anything, we want r to
be left as a defined value. This construct (I believe) achieves
this by setting r to the default value of type P, even if P
is a POD type.
*/
P r = P ();
s >> r;
return r;
}
#endif
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