Slightly modified find_if_pred (and refactored into own header).

[SVN r20713]
This commit is contained in:
Eric Friedman
2003-11-07 03:46:08 +00:00
parent 44fd2878bf
commit d934b4944f
2 changed files with 52 additions and 11 deletions

View File

@@ -0,0 +1,47 @@
//-----------------------------------------------------------------------------
// boost mpl/aux_/find_if_pred.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2000-02
// Aleksey Gurtovoy
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appears in all copies and
// that both the copyright notice and this permission notice appear in
// supporting documentation. No representations are made about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
#ifndef BOOST_MPL_AUX_FIND_IF_PRED_HPP_INCLUDED
#define BOOST_MPL_AUX_FIND_IF_PRED_HPP_INCLUDED
#include "boost/mpl/aux_/iter_apply.hpp"
#include "boost/mpl/apply.hpp"
#include "boost/mpl/not.hpp"
#include "boost/mpl/or.hpp"
#include "boost/type_traits/is_same.hpp"
namespace boost {
namespace mpl {
namespace aux {
template< typename Predicate, typename LastIterator >
struct find_if_pred
{
template< typename State, typename Iterator >
struct apply
{
typedef not_< or_<
is_same<Iterator,LastIterator>
, aux::iter_apply1<Predicate,Iterator>
> > type;
};
};
} // namespace aux
} // namespace mpl
} // namespace boost
#endif // BOOST_MPL_AUX_FIND_IF_PRED_HPP_INCLUDED

View File

@@ -17,25 +17,19 @@
#ifndef BOOST_MPL_FIND_IF_HPP_INCLUDED
#define BOOST_MPL_FIND_IF_HPP_INCLUDED
#include "boost/mpl/aux_/find_if_pred.hpp"
#include "boost/mpl/aux_/iter_fold_if_impl.hpp"
#include "boost/mpl/aux_/iter_apply.hpp"
#include "boost/mpl/or.hpp"
#include "boost/mpl/not.hpp"
#include "boost/mpl/begin_end.hpp"
#include "boost/mpl/always.hpp"
#include "boost/mpl/lambda.hpp"
#include "boost/mpl/bind.hpp"
#include "boost/mpl/apply.hpp"
#include "boost/mpl/void.hpp"
#include "boost/mpl/aux_/void_spec.hpp"
#include "boost/mpl/aux_/lambda_support.hpp"
#include "boost/type_traits/is_same.hpp"
namespace boost {
namespace mpl {
namespace aux {
/*
template< typename LastIterator >
struct find_if_pred
{
@@ -51,7 +45,7 @@ struct find_if_pred
> >::type type;
};
};
*/
} // namespace aux
BOOST_MPL_AUX_AGLORITHM_NAMESPACE_BEGIN
@@ -70,9 +64,9 @@ struct find_if
public:
typedef typename aux::iter_fold_if_impl<
first_
, pred_
, void
, mpl::arg<1>
, aux::find_if_pred<last_>
, aux::find_if_pred< pred_, last_ >
, void
, always<false_>
>::iterator type;