1/*=============================================================================
2 Copyright (c) 2001-2014 Joel de Guzman
3 Copyright (c) 2011 Jan Frederick Eick
4
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7==============================================================================*/
8#if !defined(BOOST_SPIRIT_X3_UINT_APR_17_2006_0901AM)
9#define BOOST_SPIRIT_X3_UINT_APR_17_2006_0901AM
10
11#include <boost/spirit/home/x3/core/parser.hpp>
12#include <boost/spirit/home/x3/core/skip_over.hpp>
13#include <boost/spirit/home/x3/support/numeric_utils/extract_int.hpp>
14#include <cstdint>
15
16namespace boost { namespace spirit { namespace x3
17{
18 ///////////////////////////////////////////////////////////////////////////
19 template <
20 typename T
21 , unsigned Radix = 10
22 , unsigned MinDigits = 1
23 , int MaxDigits = -1>
24 struct uint_parser : parser<uint_parser<T, Radix, MinDigits, MaxDigits>>
25 {
26 // check template parameter 'Radix' for validity
27 static_assert(
28 (Radix >= 2 && Radix <= 36),
29 "Error Unsupported Radix");
30
31 typedef T attribute_type;
32 static bool const has_attribute = true;
33
34 template <typename Iterator, typename Context, typename Attribute>
35 bool parse(Iterator& first, Iterator const& last
36 , Context const& context, unused_type, Attribute& attr) const
37 {
38 typedef extract_uint<T, Radix, MinDigits, MaxDigits> extract;
39 x3::skip_over(first, last, context);
40 return extract::call(first, last, attr);
41 }
42 };
43
44#define BOOST_SPIRIT_X3_UINT_PARSER(uint_type, name) \
45 typedef uint_parser<uint_type> name##type; \
46 constexpr name##type name = {}; \
47 /***/
48
49 BOOST_SPIRIT_X3_UINT_PARSER(unsigned long, ulong_)
50 BOOST_SPIRIT_X3_UINT_PARSER(unsigned short, ushort_)
51 BOOST_SPIRIT_X3_UINT_PARSER(unsigned int, uint_)
52 BOOST_SPIRIT_X3_UINT_PARSER(unsigned long long, ulong_long)
53
54 BOOST_SPIRIT_X3_UINT_PARSER(uint8_t, uint8)
55 BOOST_SPIRIT_X3_UINT_PARSER(uint16_t, uint16)
56 BOOST_SPIRIT_X3_UINT_PARSER(uint32_t, uint32)
57 BOOST_SPIRIT_X3_UINT_PARSER(uint64_t, uint64)
58
59#undef BOOST_SPIRIT_X3_UINT_PARSER
60
61#define BOOST_SPIRIT_X3_UINT_PARSER(uint_type, radix, name) \
62 typedef uint_parser<uint_type, radix> name##type; \
63 constexpr name##type name = name##type(); \
64 /***/
65
66 BOOST_SPIRIT_X3_UINT_PARSER(unsigned, 2, bin)
67 BOOST_SPIRIT_X3_UINT_PARSER(unsigned, 8, oct)
68 BOOST_SPIRIT_X3_UINT_PARSER(unsigned, 16, hex)
69
70#undef BOOST_SPIRIT_X3_UINT_PARSER
71
72
73}}}
74
75#endif
76

source code of boost/libs/spirit/include/boost/spirit/home/x3/numeric/uint.hpp