| 1 | // Copyright 2023 Matt Borland |
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| 2 | // Distributed under the Boost Software License, Version 1.0. |
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| 3 | // https://www.boost.org/LICENSE_1_0.txt |
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| 4 | |
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| 5 | #ifndef BOOST_CHARCONV_DETAIL_FROM_CHARS_RESULT_HPP |
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| 6 | #define BOOST_CHARCONV_DETAIL_FROM_CHARS_RESULT_HPP |
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| 7 | |
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| 8 | #include <system_error> |
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| 9 | |
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| 10 | namespace boost { namespace charconv { |
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| 11 | |
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| 12 | // 22.13.3, Primitive numerical input conversion |
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| 13 | |
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| 14 | template <typename UC> |
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| 15 | struct from_chars_result_t |
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| 16 | { |
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| 17 | const UC* ptr; |
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| 18 | |
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| 19 | // Values: |
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| 20 | // 0 = no error |
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| 21 | // EINVAL = invalid_argument |
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| 22 | // ERANGE = result_out_of_range |
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| 23 | std::errc ec; |
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| 24 | |
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| 25 | friend constexpr bool operator==(const from_chars_result_t<UC>& lhs, const from_chars_result_t<UC>& rhs) noexcept |
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| 26 | { |
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| 27 | return lhs.ptr == rhs.ptr && lhs.ec == rhs.ec; |
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| 28 | } |
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| 29 | |
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| 30 | friend constexpr bool operator!=(const from_chars_result_t<UC>& lhs, const from_chars_result_t<UC>& rhs) noexcept |
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| 31 | { |
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| 32 | return !(lhs == rhs); // NOLINT : Expression can not be simplified since this is the definition |
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| 33 | } |
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| 34 | |
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| 35 | constexpr explicit operator bool() const noexcept { return ec == std::errc{}; } |
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| 36 | }; |
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| 37 | using from_chars_result = from_chars_result_t<char>; |
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| 38 | |
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| 39 | }} // Namespaces |
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| 40 | |
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| 41 | #endif // BOOST_CHARCONV_DETAIL_FROM_CHARS_RESULT_HPP |
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| 42 | |
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