1// Copyright Kevlin Henney, 2000-2005.
2// Copyright Alexander Nasonov, 2006-2010.
3// Copyright Antony Polukhin, 2011-2020.
4//
5// Distributed under the Boost Software License, Version 1.0. (See
6// accompanying file LICENSE_1_0.txt or copy at
7// http://www.boost.org/LICENSE_1_0.txt)
8//
9// what: lexical_cast custom keyword cast
10// who: contributed by Kevlin Henney,
11// enhanced with contributions from Terje Slettebo,
12// with additional fixes and suggestions from Gennaro Prota,
13// Beman Dawes, Dave Abrahams, Daryle Walker, Peter Dimov,
14// Alexander Nasonov, Antony Polukhin, Justin Viiret, Michael Hofmann,
15// Cheng Yang, Matthew Bradbury, David W. Birdsall, Pavel Korzh and other Boosters
16// when: November 2000, March 2003, June 2005, June 2006, March 2011 - 2014
17
18#ifndef BOOST_LEXICAL_CAST_DETAIL_LCAST_CHAR_CONSTANTS_HPP
19#define BOOST_LEXICAL_CAST_DETAIL_LCAST_CHAR_CONSTANTS_HPP
20
21#include <boost/config.hpp>
22#ifdef BOOST_HAS_PRAGMA_ONCE
23# pragma once
24#endif
25
26namespace boost
27{
28 namespace detail // '0', '-', '+', 'e', 'E' and '.' constants
29 {
30 template < typename Char >
31 struct lcast_char_constants {
32 // We check in tests assumption that static casted character is
33 // equal to correctly written C++ literal: U'0' == static_cast<char32_t>('0')
34 BOOST_STATIC_CONSTANT(Char, zero = static_cast<Char>('0'));
35 BOOST_STATIC_CONSTANT(Char, minus = static_cast<Char>('-'));
36 BOOST_STATIC_CONSTANT(Char, plus = static_cast<Char>('+'));
37 BOOST_STATIC_CONSTANT(Char, lowercase_e = static_cast<Char>('e'));
38 BOOST_STATIC_CONSTANT(Char, capital_e = static_cast<Char>('E'));
39 BOOST_STATIC_CONSTANT(Char, c_decimal_separator = static_cast<Char>('.'));
40 };
41 }
42} // namespace boost
43
44
45#endif // BOOST_LEXICAL_CAST_DETAIL_LCAST_CHAR_CONSTANTS_HPP
46
47

source code of include/boost/lexical_cast/detail/lcast_char_constants.hpp