Edit: /usr/include/boost/mpl/index_if.hpp (1508B)
#ifndef BOOST_MPL_INDEX_IF_HPP_INCLUDED
#define BOOST_MPL_INDEX_IF_HPP_INCLUDED
// Copyright Eric Friedman 2003
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/mpl for documentation.
// $Id$
// $Date$
// $Revision$
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
namespace boost { namespace mpl {
template<
typename BOOST_MPL_AUX_NA_PARAM(Sequence)
, typename BOOST_MPL_AUX_NA_PARAM(Predicate)
>
struct index_if
{
typedef typename iter_fold_if<
Sequence
, int_<0>
, next<>
, aux::find_if_pred
>::type result_;
typedef typename end::type not_found_;
typedef typename first::type result_index_;
typedef typename second::type result_iterator_;
typedef typename if_<
is_same< result_iterator_,not_found_ >
, void_
, result_index_
>::type type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(2,index_if,(Sequence,Predicate))
};
BOOST_MPL_AUX_NA_SPEC(2, index_if)
}}
#endif // BOOST_MPL_INDEX_IF_HPP_INCLUDED