Array.hpp

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// This file is part of INSTINCT, the INS Toolkit for Integrated
// Navigation Concepts and Training by the Institute of Navigation of
// the University of Stuttgart, Germany.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
 
#pragma once
 
#include <array>
#include <cstddef>
 
#include "util/Assert.h"
 
namespace NAV
{
 
namespace detail
{
 
template<typename T, std::size_t... Is>
constexpr std::array<T, sizeof...(Is)> create_array(const T& value, std::index_sequence<Is...> /* unused */)
{
    // cast Is to void to remove the warning: unused value
    return { { (static_cast<void>(Is), value)... } };
}
 
} // namespace detail
 
template<std::size_t N, typename T>
constexpr std::array<T, N> create_array(const T& value)
{
    return detail::create_array(value, std::make_index_sequence<N>());
}
 
template<size_t N, typename Scalar>
constexpr std::array<Scalar, N> genRangeArray(Scalar start, Scalar stepSize, [[maybe_unused]] Scalar end)
{
    std::array<Scalar, N> container{};
 
    for (size_t i = 0; i < container.size(); i++)
    {
        container.at(i) = start;
        INS_ASSERT_USER_ERROR(start < end, "The range exceeds the end value. Make the array bigger.");
        start += stepSize;
    }
 
    INS_ASSERT_USER_ERROR(start + stepSize > end, "The end value exceeds the range. Make the array smaller.");
 
    return container;
};
 
} // namespace NAV