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1 // Copyright Kevlin Henney, 2000-2005.
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2 // Copyright Alexander Nasonov, 2006-2010.
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3 // Copyright Antony Polukhin, 2011-2014.
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4 //
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5 // Distributed under the Boost Software License, Version 1.0. (See
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6 // accompanying file LICENSE_1_0.txt or copy at
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7 // http://www.boost.org/LICENSE_1_0.txt)
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8 //
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9 // what: lexical_cast custom keyword cast
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10 // who: contributed by Kevlin Henney,
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11 // enhanced with contributions from Terje Slettebo,
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12 // with additional fixes and suggestions from Gennaro Prota,
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13 // Beman Dawes, Dave Abrahams, Daryle Walker, Peter Dimov,
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14 // Alexander Nasonov, Antony Polukhin, Justin Viiret, Michael Hofmann,
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15 // Cheng Yang, Matthew Bradbury, David W. Birdsall, Pavel Korzh and other Boosters
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16 // when: November 2000, March 2003, June 2005, June 2006, March 2011 - 2014
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17
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18 #ifndef BOOST_LEXICAL_CAST_DETAIL_LCAST_CHAR_CONSTANTS_HPP
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19 #define BOOST_LEXICAL_CAST_DETAIL_LCAST_CHAR_CONSTANTS_HPP
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20
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21 #include <boost/config.hpp>
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22 #ifdef BOOST_HAS_PRAGMA_ONCE
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23 # pragma once
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24 #endif
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25
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26 namespace boost
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27 {
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28 namespace detail // '0', '-', '+', 'e', 'E' and '.' constants
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29 {
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30 template < typename Char >
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31 struct lcast_char_constants {
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32 // We check in tests assumption that static casted character is
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33 // equal to correctly written C++ literal: U'0' == static_cast<char32_t>('0')
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34 BOOST_STATIC_CONSTANT(Char, zero = static_cast<Char>('0'));
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35 BOOST_STATIC_CONSTANT(Char, minus = static_cast<Char>('-'));
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36 BOOST_STATIC_CONSTANT(Char, plus = static_cast<Char>('+'));
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37 BOOST_STATIC_CONSTANT(Char, lowercase_e = static_cast<Char>('e'));
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38 BOOST_STATIC_CONSTANT(Char, capital_e = static_cast<Char>('E'));
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39 BOOST_STATIC_CONSTANT(Char, c_decimal_separator = static_cast<Char>('.'));
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40 };
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41 }
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42 } // namespace boost
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43
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44
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45 #endif // BOOST_LEXICAL_CAST_DETAIL_LCAST_CHAR_CONSTANTS_HPP
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46
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