/*=============================================================================
    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

#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;                                    \
    constexpr name##type 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
