detail/literals.hpp
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detail/literals.hpp
| Line | Hits | Source Code |
|---|---|---|
| 1 | // | |
| 2 | // Copyright (c) 2024 Dmitry Arkhipov (grisumbras@yandex.ru) | |
| 3 | // | |
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 6 | // | |
| 7 | // Official repository: https://github.com/boostorg/json | |
| 8 | // | |
| 9 | ||
| 10 | #ifndef BOOST_JSON_DETAIL_LITERALS_HPP | |
| 11 | #define BOOST_JSON_DETAIL_LITERALS_HPP | |
| 12 | ||
| 13 | #include <boost/json/detail/config.hpp> | |
| 14 | #include <boost/mp11/integral.hpp> | |
| 15 | ||
| 16 | namespace boost { | |
| 17 | namespace json { | |
| 18 | namespace detail { | |
| 19 | ||
| 20 | enum class literals | |
| 21 | { | |
| 22 | null = 0, | |
| 23 | true_, | |
| 24 | false_, | |
| 25 | infinity, | |
| 26 | neg_infinity, | |
| 27 | nan, | |
| 28 | resume, | |
| 29 | }; | |
| 30 | ||
| 31 | constexpr char const* literal_strings[] = { | |
| 32 | "null", | |
| 33 | "true", | |
| 34 | "false", | |
| 35 | "Infinity", | |
| 36 | "-Infinity", | |
| 37 | "NaN", | |
| 38 | "", | |
| 39 | }; | |
| 40 | ||
| 41 | constexpr std::size_t literal_sizes[] = { | |
| 42 | 4, | |
| 43 | 4, | |
| 44 | 5, | |
| 45 | 8, | |
| 46 | 9, | |
| 47 | 3, | |
| 48 | 0, | |
| 49 | }; | |
| 50 | ||
| 51 | template<literals L> | |
| 52 | using literals_c = std::integral_constant<literals, L>; | |
| 53 | ||
| 54 | constexpr | |
| 55 | unsigned char | |
| 56 | 1007 | literal_index(literals l) |
| 57 | { | |
| 58 | 1007 | return static_cast<unsigned char>(l); |
| 59 | } | |
| 60 | ||
| 61 | } // namespace detail | |
| 62 | } // namespace json | |
| 63 | } // namespace boost | |
| 64 | ||
| 65 | #endif // BOOST_JSON_DETAIL_LITERALS_HPP | |
| 66 |