view misc/clamp.hpp @ 606:ab758b6bfdc7

Xdg: move to hg.markand.fr/libxdg
author David Demelier <markand@malikania.fr>
date Tue, 27 Dec 2016 13:39:42 +0100
parents c79a501782b0
children
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/*
 * clamp.hpp -- clamp a value
 *
 * Copyright (c) 2013-2016 David Demelier <markand@malikania.fr>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/**
 * \file clamp.hpp
 * \brief Clamp function
 */

#include <algorithm>

/**
 * Clamp the value between low and high.
 *
 * \param value the value
 * \param low the minimum value
 * \param high the maximum value
 * \return the value between minimum and maximum
 */
template <typename T>
constexpr T clamp(T value, T low, T high) noexcept
{
    return (value < high) ? std::max(value, low) : std::min(value, high);
}