/*=============================================================================
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Copyright (c) 2001-2014 Joel de Guzman
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(BOOST_SPIRIT_X3_INT_APR_17_2006_0830AM)
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#define BOOST_SPIRIT_X3_INT_APR_17_2006_0830AM
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#include <boost/spirit/home/x3/core/parser.hpp>
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#include <boost/spirit/home/x3/core/skip_over.hpp>
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#include <boost/spirit/home/x3/support/numeric_utils/extract_int.hpp>
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#include <cstdint>
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namespace boost { namespace spirit { namespace x3
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{
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///////////////////////////////////////////////////////////////////////////
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template <
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typename T
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, unsigned Radix = 10
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, unsigned MinDigits = 1
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, int MaxDigits = -1>
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struct int_parser : parser<int_parser<T, Radix, MinDigits, MaxDigits>>
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{
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// check template parameter 'Radix' for validity
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static_assert(
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(Radix == 2 || Radix == 8 || Radix == 10 || Radix == 16),
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"Error Unsupported Radix");
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typedef T attribute_type;
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static bool const has_attribute = true;
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template <typename Iterator, typename Context, typename Attribute>
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bool parse(Iterator& first, Iterator const& last
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, Context const& context, unused_type, Attribute& attr) const
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{
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typedef extract_int<T, Radix, MinDigits, MaxDigits> extract;
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x3::skip_over(first, last, context);
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return extract::call(first, last, attr);
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}
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};
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#define BOOST_SPIRIT_X3_INT_PARSER(int_type, name) \
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typedef int_parser<int_type> name##type; \
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constexpr name##type name = {}; \
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/***/
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BOOST_SPIRIT_X3_INT_PARSER(long, long_)
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BOOST_SPIRIT_X3_INT_PARSER(short, short_)
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BOOST_SPIRIT_X3_INT_PARSER(int, int_)
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BOOST_SPIRIT_X3_INT_PARSER(long long, long_long)
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BOOST_SPIRIT_X3_INT_PARSER(int8_t, int8)
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BOOST_SPIRIT_X3_INT_PARSER(int16_t, int16)
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BOOST_SPIRIT_X3_INT_PARSER(int32_t, int32)
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BOOST_SPIRIT_X3_INT_PARSER(int64_t, int64)
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#undef BOOST_SPIRIT_X3_INT_PARSER
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}}}
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#endif
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