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