ceph/src/boost/libs/spirit/include/boost/spirit/home/x3/numeric/int.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2014 Joel de Guzman
   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 #if !defined(BOOST_SPIRIT_X3_INT_APR_17_2006_0830AM)
   8 #define BOOST_SPIRIT_X3_INT_APR_17_2006_0830AM
   9
  10 #include <boost/spirit/home/x3/core/parser.hpp>
  11 #include <boost/spirit/home/x3/core/skip_over.hpp>
  12 #include <boost/spirit/home/x3/support/numeric_utils/extract_int.hpp>
  13 #include <cstdint>
  14
  15 namespace boost { namespace spirit { namespace x3
  16 {
  17     ///////////////////////////////////////////////////////////////////////////
  18     template <
  19         typename T
  20       , unsigned Radix = 10
  21       , unsigned MinDigits = 1
  22       , int MaxDigits = -1>
  23     struct int_parser : parser<int_parser<T, Radix, MinDigits, MaxDigits>>
  24     {
  25         // check template parameter 'Radix' for validity
  26         static_assert(
  27             (Radix == 2 || Radix == 8 || Radix == 10 || Radix == 16),
  28             "Error Unsupported Radix");
  29
  30         typedef T attribute_type;
  31         static bool const has_attribute = true;
  32
  33         template <typename Iterator, typename Context, typename Attribute>
  34         bool parse(Iterator& first, Iterator const& last
  35           , Context const& context, unused_type, Attribute& attr) const
  36         {
  37             typedef extract_int<T, Radix, MinDigits, MaxDigits> extract;
  38             x3::skip_over(first, last, context);
  39             return extract::call(first, last, attr);
  40         }
  41     };
  42
  43 #define BOOST_SPIRIT_X3_INT_PARSER(int_type, name)                              \
  44     typedef int_parser<int_type> name##type;                                    \
  45     name##type const name = {};                                                 \
  46     /***/
  47
  48     BOOST_SPIRIT_X3_INT_PARSER(long, long_)
  49     BOOST_SPIRIT_X3_INT_PARSER(short, short_)
  50     BOOST_SPIRIT_X3_INT_PARSER(int, int_)
  51     BOOST_SPIRIT_X3_INT_PARSER(long long, long_long)
  52
  53     BOOST_SPIRIT_X3_INT_PARSER(int8_t, int8)
  54     BOOST_SPIRIT_X3_INT_PARSER(int16_t, int16)
  55     BOOST_SPIRIT_X3_INT_PARSER(int32_t, int32)
  56     BOOST_SPIRIT_X3_INT_PARSER(int64_t, int64)
  57
  58 #undef BOOST_SPIRIT_X3_INT_PARSER
  59
  60 }}}
  61
  62 #endif