42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
|
/*
|
||
|
|
* 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);
|
||
|
|
}
|
||
|
|
}
|