Ugly, not-to-be-pushed sucking in of all of Boost to get windows to work.
[dyninst.git] / external / boost / mpl / aux_ / front_impl.hpp
1
2 #ifndef BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED
3 #define BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED
4
5 // Copyright Aleksey Gurtovoy 2000-2004
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 // $Source: /cvsroot/boost/boost/boost/mpl/aux_/front_impl.hpp,v $
14 // $Date: 2004/09/02 15:40:43 $
15 // $Revision: 1.4 $
16
17 #include <boost/mpl/front_fwd.hpp>
18 #include <boost/mpl/begin_end.hpp>
19 #include <boost/mpl/deref.hpp>
20 #include <boost/mpl/aux_/traits_lambda_spec.hpp>
21
22 namespace boost { namespace mpl {
23
24 // default implementation; conrete sequences might override it by 
25 // specializing either the 'front_impl' or the primary 'front' template
26
27 template< typename Tag >
28 struct front_impl
29 {
30     template< typename Sequence > struct apply
31     {
32         typedef typename begin<Sequence>::type iter_;
33         typedef typename deref<iter_>::type type;
34     };
35 };
36
37 BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1,front_impl)
38
39 }}
40
41 #endif // BOOST_MPL_AUX_FRONT_IMPL_HPP_INCLUDED