atoll.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_CSTDLIB_ATOLL_HPP
#define TETL_CSTDLIB_ATOLL_HPP
 
#include <etl/_strings/to_integer.hpp>
 
namespace etl {
 
/// \brief Interprets an integer value in a byte string pointed to by str.
/// Discards any whitespace characters until the first non-whitespace character
/// is found, then takes as many characters as possible to form a valid integer
/// number representation and converts them to an integer value.
[[nodiscard]] constexpr auto atoll(char const* str) noexcept -> long long
{
    auto const result = strings::to_integer<long long>(str);
    return result.value;
}
 
} // namespace etl
 
#endif // TETL_CSTDLIB_ATOLL_HPP