1 
2 #ifndef BOOST_MPL_LAMBDA_FWD_HPP_INCLUDED
3 #define BOOST_MPL_LAMBDA_FWD_HPP_INCLUDED
4 
5 // Copyright Aleksey Gurtovoy 2001-2004
6 //
7 // Distributed under the Boost Software License, Version 1.0.
8 // (See accompanying file LICENSE_1_0.txt or copy at
9 // http://www.boost.org/LICENSE_1_0.txt)
10 //
11 // See http://www.boost.org/libs/mpl for documentation.
12 
13 // $Id$
14 // $Date$
15 // $Revision$
16 
17 #include <boost/mpl/void_fwd.hpp>
18 #include <boost/mpl/aux_/na.hpp>
19 #include <boost/mpl/aux_/config/lambda.hpp>
20 
21 #if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT)
22 
23 #   include <boost/mpl/int.hpp>
24 #   include <boost/mpl/aux_/lambda_arity_param.hpp>
25 #   include <boost/mpl/aux_/template_arity_fwd.hpp>
26 
27 namespace boost { namespace mpl {
28 
29 template<
30       typename T = na
31     , typename Tag = void_
32     BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(
33           typename Arity = int_< aux::template_arity<T>::value >
34         )
35     >
36 struct lambda;
37 
38 }}
39 
40 #else // BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT
41 
42 #   include <boost/mpl/bool.hpp>
43 
44 namespace boost { namespace mpl {
45 
46 template<
47       typename T = na
48     , typename Tag = void_
49     , typename Protect = true_
50     >
51 struct lambda;
52 
53 }}
54 
55 #endif
56 
57 #endif // BOOST_MPL_LAMBDA_FWD_HPP_INCLUDED
58