2020-02-01 23:06:01 +01:00
|
|
|
// -*-c++-*-
|
|
|
|
|
// vim: set ft=cpp:
|
|
|
|
|
|
|
|
|
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
|
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
2021-09-14 00:13:48 +02:00
|
|
|
#pragma once
|
2020-02-01 23:06:01 +01:00
|
|
|
|
|
|
|
|
#include <algorithm> // IWYU pragma: export
|
|
|
|
|
#include <cassert>
|
|
|
|
|
|
|
|
|
|
namespace cm {
|
|
|
|
|
|
|
|
|
|
#if __cplusplus >= 201703L || defined(_MSVC_LANG) && _MSVC_LANG >= 201703L
|
|
|
|
|
|
|
|
|
|
using std::clamp;
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
template <typename T>
|
|
|
|
|
T const& clamp(T const& v, T const& lo, T const& hi)
|
|
|
|
|
{
|
|
|
|
|
assert(!(hi < lo));
|
|
|
|
|
return (v < lo) ? lo : (hi < v) ? hi : v;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
template <typename T, typename Comp>
|
|
|
|
|
T const& clamp(T const& v, T const& lo, T const& hi, Comp comp)
|
|
|
|
|
{
|
|
|
|
|
assert(!comp(hi, lo));
|
|
|
|
|
return comp(v, lo) ? lo : comp(hi, v) ? hi : v;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
} // namespace cm
|
