minmax.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_ALGORITHM_MINMAX_HPP
#define TETL_ALGORITHM_MINMAX_HPP
 
#include <etl/_functional/less.hpp>
#include <etl/_utility/pair.hpp>
 
namespace etl {
 
/// \brief Returns the lowest and the greatest of the given values.
/// \ingroup algorithm
template <typename T, typename Compare>
[[nodiscard]] constexpr auto minmax(T const& a, T const& b, Compare comp) -> pair<T const&, T const&>
{
    using return_type = pair<T const&, T const&>;
    return comp(b, a) ? return_type(b, a) : return_type(a, b);
}
 
/// \brief Returns the lowest and the greatest of the given values.
/// \ingroup algorithm
template <typename T>
[[nodiscard]] constexpr auto minmax(T const& a, T const& b) -> pair<T const&, T const&>
{
    return etl::minmax(a, b, etl::less());
}
 
} // namespace etl
 
#endif // TETL_ALGORITHM_MINMAX_HPP