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