Chris@16: /* 
Chris@16:    Copyright (c) Marshall Clow 2011-2012.
Chris@16: 
Chris@16:    Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16:    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: */
Chris@16: 
Chris@16: /// \file  find_if_not.hpp
Chris@16: /// \brief Find the first element in a sequence that does not satisfy a predicate.
Chris@16: /// \author Marshall Clow
Chris@16: 
Chris@16: #ifndef BOOST_ALGORITHM_FIND_IF_NOT_HPP
Chris@16: #define BOOST_ALGORITHM_FIND_IF_NOT_HPP
Chris@16: 
Chris@16: #include <algorithm>    // for std::find_if_not, if it exists
Chris@16: 
Chris@16: #include <boost/range/begin.hpp>
Chris@16: #include <boost/range/end.hpp>
Chris@16: 
Chris@16: namespace boost { namespace algorithm {
Chris@16: 
Chris@16: /// \fn find_if_not(InputIterator first, InputIterator last, Predicate p)
Chris@16: /// \brief Finds the first element in the sequence that does not satisfy the predicate.
Chris@16: /// \return         The iterator pointing to the desired element.
Chris@16: /// 
Chris@16: /// \param first    The start of the input sequence
Chris@16: /// \param last     One past the end of the input sequence
Chris@16: /// \param p        A predicate for testing the elements of the range
Chris@16: /// \note           This function is part of the C++2011 standard library.
Chris@16: ///  We will use the standard one if it is available, 
Chris@16: ///  otherwise we have our own implementation.
Chris@16: template<typename InputIterator, typename Predicate> 
Chris@16: InputIterator find_if_not ( InputIterator first, InputIterator last, Predicate p )
Chris@16: {
Chris@16:     for ( ; first != last; ++first )
Chris@16:         if ( !p(*first))
Chris@16:             break;
Chris@16:     return first;
Chris@16: }
Chris@16: 
Chris@16: /// \fn find_if_not ( const Range &r, Predicate p )
Chris@16: /// \brief Finds the first element in the sequence that does not satisfy the predicate.
Chris@16: /// \return         The iterator pointing to the desired element.
Chris@16: /// 
Chris@16: /// \param r        The input range
Chris@16: /// \param p        A predicate for testing the elements of the range
Chris@16: ///
Chris@16: template<typename Range, typename Predicate>
Chris@16: typename boost::range_iterator<const Range>::type find_if_not ( const Range &r, Predicate p )
Chris@16: {
Chris@16:     return boost::algorithm::find_if_not (boost::begin (r), boost::end(r), p);
Chris@16: }
Chris@16: 
Chris@16: }}
Chris@16: #endif  // BOOST_ALGORITHM_FIND_IF_NOT_HPP