scummvm/common/type-traits.h
Colin Snover ff1c2295ab COMMON: Add type traits to common library
Type traits allow conditional selection and manipulation of types
during compilation.
2017-01-08 13:20:23 -06:00

35 lines
1.4 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
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*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#ifndef COMMON_TYPE_TRAITS_H
#define COMMON_TYPE_TRAITS_H
namespace Common {
template <bool b, class T, class U> struct Conditional { typedef T type; };
template <class T, class U> struct Conditional<false, T, U> { typedef U type; };
template <typename T> struct RemoveConst { typedef T type; };
template <typename T> struct RemoveConst<const T> { typedef T type; };
template <typename T> struct AddConst { typedef const T type; };
} // End of namespace Common
#endif