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 
16 namespace 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>
parseboost::spirit::x3::uint_parser35         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