os/ossrv/ossrv_pub/boost_apis/boost/mpl/index_if.hpp
changeset 0 bde4ae8d615e
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/mpl/index_if.hpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,60 @@
     1.4 +
     1.5 +#ifndef BOOST_MPL_INDEX_IF_HPP_INCLUDED
     1.6 +#define BOOST_MPL_INDEX_IF_HPP_INCLUDED
     1.7 +
     1.8 +// Copyright Eric Friedman 2003
     1.9 +//
    1.10 +// Distributed under the Boost Software License, Version 1.0. 
    1.11 +// (See accompanying file LICENSE_1_0.txt or copy at 
    1.12 +// http://www.boost.org/LICENSE_1_0.txt)
    1.13 +//
    1.14 +// See http://www.boost.org/libs/mpl for documentation.
    1.15 +
    1.16 +// $Source: /cvsroot/boost/boost/boost/mpl/index_if.hpp,v $
    1.17 +// $Date: 2004/09/02 15:40:41 $
    1.18 +// $Revision: 1.7 $
    1.19 +
    1.20 +#include <boost/mpl/aux_/find_if_pred.hpp>
    1.21 +#include <boost/mpl/begin_end.hpp>
    1.22 +#include <boost/mpl/if.hpp>
    1.23 +#include <boost/mpl/int.hpp>
    1.24 +#include <boost/mpl/iter_fold_if.hpp>
    1.25 +#include <boost/mpl/next.hpp>
    1.26 +#include <boost/mpl/void.hpp>
    1.27 +#include <boost/mpl/aux_/na_spec.hpp>
    1.28 +#include <boost/mpl/aux_/lambda_support.hpp>
    1.29 +#include <boost/type_traits/is_same.hpp>
    1.30 +
    1.31 +namespace boost { namespace mpl {
    1.32 +
    1.33 +template<
    1.34 +      typename BOOST_MPL_AUX_NA_PARAM(Sequence)
    1.35 +    , typename BOOST_MPL_AUX_NA_PARAM(Predicate)
    1.36 +    >
    1.37 +struct index_if
    1.38 +{
    1.39 +    typedef typename iter_fold_if<
    1.40 +          Sequence
    1.41 +        , int_<0>
    1.42 +        , next<>
    1.43 +        , aux::find_if_pred<Predicate>
    1.44 +        >::type result_;
    1.45 +
    1.46 +    typedef typename end<Sequence>::type not_found_;
    1.47 +    typedef typename first<result_>::type result_index_;
    1.48 +    typedef typename second<result_>::type result_iterator_;
    1.49 +
    1.50 +    typedef typename if_<
    1.51 +          is_same< result_iterator_,not_found_ >
    1.52 +        , void_
    1.53 +        , result_index_
    1.54 +        >::type type;
    1.55 +
    1.56 +    BOOST_MPL_AUX_LAMBDA_SUPPORT(2,index_if,(Sequence,Predicate))
    1.57 +};
    1.58 +
    1.59 +BOOST_MPL_AUX_NA_SPEC(2, index_if)
    1.60 +
    1.61 +}}
    1.62 +
    1.63 +#endif // BOOST_MPL_INDEX_IF_HPP_INCLUDED