1/*=============================================================================
2 Copyright (c) 2001-2011 Joel de Guzman
3 Copyright (c) 2001-2011 Hartmut Kaiser
4
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7==============================================================================*/
8#if !defined(BOOST_SPIRIT_LOCALS_APRIL_03_2007_0506PM)
9#define BOOST_SPIRIT_LOCALS_APRIL_03_2007_0506PM
10
11#if defined(_MSC_VER)
12#pragma once
13#endif
14
15#include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
16#include <boost/preprocessor/repetition/enum_params.hpp>
17#include <boost/mpl/vector.hpp>
18#include <boost/mpl/bool.hpp>
19
20#if !defined(BOOST_SPIRIT_MAX_LOCALS_SIZE)
21# define BOOST_SPIRIT_MAX_LOCALS_SIZE 10
22#else
23# if BOOST_SPIRIT_MAX_LOCALS_SIZE < 3
24# undef BOOST_SPIRIT_MAX_LOCALS_SIZE
25# define BOOST_SPIRIT_MAX_LOCALS_SIZE 10
26# endif
27#endif
28
29namespace boost { namespace spirit
30{
31 ///////////////////////////////////////////////////////////////////////////
32 template <
33 BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(
34 BOOST_SPIRIT_MAX_LOCALS_SIZE, typename T, mpl::na)
35 >
36 struct locals
37 : mpl::vector<BOOST_PP_ENUM_PARAMS(BOOST_SPIRIT_MAX_LOCALS_SIZE, T)> {};
38
39 ///////////////////////////////////////////////////////////////////////////
40 namespace detail
41 {
42 template <typename T>
43 struct is_locals
44 : mpl::false_
45 {};
46
47 template <BOOST_PP_ENUM_PARAMS(BOOST_SPIRIT_MAX_LOCALS_SIZE, typename T)>
48 struct is_locals<locals<BOOST_PP_ENUM_PARAMS(BOOST_SPIRIT_MAX_LOCALS_SIZE, T)> >
49 : mpl::true_
50 {};
51 }
52}}
53
54#endif
55