source: NonGTP/Boost/boost/mpl/find_if.hpp @ 857

Revision 857, 1.3 KB checked in by igarcia, 19 years ago (diff)
Line 
1
2#ifndef BOOST_MPL_FIND_IF_HPP_INCLUDED
3#define BOOST_MPL_FIND_IF_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/find_if.hpp,v $
14// $Date: 2004/09/02 15:40:41 $
15// $Revision: 1.10 $
16
17#include <boost/mpl/aux_/find_if_pred.hpp>
18#include <boost/mpl/arg.hpp>
19#include <boost/mpl/iter_fold_if.hpp>
20#include <boost/mpl/aux_/common_name_wknd.hpp>
21#include <boost/mpl/aux_/na_spec.hpp>
22#include <boost/mpl/aux_/lambda_support.hpp>
23
24namespace boost { namespace mpl {
25
26BOOST_MPL_AUX_COMMON_NAME_WKND(find_if)
27
28template<
29      typename BOOST_MPL_AUX_NA_PARAM(Sequence)
30    , typename BOOST_MPL_AUX_NA_PARAM(Predicate)
31    >
32struct find_if
33{
34    typedef typename iter_fold_if<
35          Sequence
36        , void
37        , arg<1> // ignore
38        , protect< aux::find_if_pred<Predicate> >
39        >::type result_;
40
41    typedef typename second<result_>::type type;
42
43    BOOST_MPL_AUX_LAMBDA_SUPPORT(2,find_if,(Sequence,Predicate))
44};
45
46BOOST_MPL_AUX_NA_SPEC(2,find_if)
47
48}}
49
50#endif // BOOST_MPL_FIND_IF_HPP_INCLUDED
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