libcruft-util/range.ipp

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/*
* This file is part of libgim.
*
* libgim 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 3 of the License, or (at your option) any later
* version.
*
* libgim 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 libgim. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2010-2015 Danny Robson <danny@nerdcruft.net>
*/
#ifdef __UTIL_RANGE_IPP
#error
#else
#define __UTIL_RANGE_IPP
#endif
#include <type_traits>
//-----------------------------------------------------------------------------
namespace util {
template <typename T>
template <typename U>
U
range<T>::normalise (T val) const {
static_assert (std::is_floating_point<U>::value,
"normalise isn't implemented for integer types");
return static_cast<U> (val - min) /
static_cast<U> (max - min);
}
}