source: NonGTP/Boost/boost/spirit/meta/fundamental.hpp @ 857

Revision 857, 2.0 KB checked in by igarcia, 19 years ago (diff)
Line 
1/*=============================================================================
2    Copyright (c) 2002-2003 Hartmut Kaiser
3    http://spirit.sourceforge.net/
4
5    Use, modification and distribution is subject to the Boost Software
6    License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
7    http://www.boost.org/LICENSE_1_0.txt)
8=============================================================================*/
9#if !defined(BOOST_SPIRIT_FUNDAMENTAL_HPP)
10#define BOOST_SPIRIT_FUNDAMENTAL_HPP
11
12#include <boost/spirit/meta/impl/fundamental.ipp>
13
14namespace boost { namespace spirit
15{
16    ///////////////////////////////////////////////////////////////////////////
17    //
18    //  Helper template for counting the number of nodes contained in a
19    //  given parser type.
20    //  All parser_category type parsers are counted as nodes.
21    //
22    ///////////////////////////////////////////////////////////////////////////
23    template <typename ParserT>
24    struct node_count {
25
26        typedef typename ParserT::parser_category_t parser_category_t;
27        typedef typename impl::nodes<parser_category_t>
28            ::template count<ParserT, mpl::int_<0> > count_t;
29
30        BOOST_STATIC_CONSTANT(int, value = count_t::value);
31    };
32
33    ///////////////////////////////////////////////////////////////////////////
34    //
35    //  Helper template for counting the number of leaf nodes contained in a
36    //  given parser type.
37    //  Only plain_parser_category type parsers are counted as leaf nodes.
38    //
39    ///////////////////////////////////////////////////////////////////////////
40    template <typename ParserT>
41    struct leaf_count {
42
43        typedef typename ParserT::parser_category_t parser_category_t;
44        typedef typename impl::leafs<parser_category_t>
45            ::template count<ParserT, mpl::int_<0> > count_t;
46
47        BOOST_STATIC_CONSTANT(int, value = count_t::value);
48    };
49
50}} // namespace boost::spirit
51
52#endif // !defined(BOOST_SPIRIT_FUNDAMENTAL_HPP)
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