51 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
		
		
			
		
	
	
			51 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
|   | 
 | ||
|  | #ifndef BOOST_MPL_FIND_IF_HPP_INCLUDED | ||
|  | #define BOOST_MPL_FIND_IF_HPP_INCLUDED | ||
|  | 
 | ||
|  | // Copyright Aleksey Gurtovoy 2000-2004 | ||
|  | // | ||
|  | // 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 <boost/mpl/aux_/find_if_pred.hpp> | ||
|  | #include <boost/mpl/arg.hpp> | ||
|  | #include <boost/mpl/iter_fold_if.hpp> | ||
|  | #include <boost/mpl/aux_/common_name_wknd.hpp> | ||
|  | #include <boost/mpl/aux_/na_spec.hpp> | ||
|  | #include <boost/mpl/aux_/lambda_support.hpp> | ||
|  | 
 | ||
|  | namespace boost { namespace mpl { | ||
|  | 
 | ||
|  | BOOST_MPL_AUX_COMMON_NAME_WKND(find_if) | ||
|  | 
 | ||
|  | template< | ||
|  |       typename BOOST_MPL_AUX_NA_PARAM(Sequence) | ||
|  |     , typename BOOST_MPL_AUX_NA_PARAM(Predicate) | ||
|  |     > | ||
|  | struct find_if | ||
|  | { | ||
|  |     typedef typename iter_fold_if< | ||
|  |           Sequence | ||
|  |         , void | ||
|  |         , mpl::arg<1> // ignore | ||
|  |         , protect< aux::find_if_pred<Predicate> > | ||
|  |         >::type result_; | ||
|  | 
 | ||
|  |     typedef typename second<result_>::type type; | ||
|  | 
 | ||
|  |     BOOST_MPL_AUX_LAMBDA_SUPPORT(2,find_if,(Sequence,Predicate)) | ||
|  | }; | ||
|  | 
 | ||
|  | BOOST_MPL_AUX_NA_SPEC(2,find_if) | ||
|  | 
 | ||
|  | }} | ||
|  | 
 | ||
|  | #endif // BOOST_MPL_FIND_IF_HPP_INCLUDED |