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1 | /* |
2 | Copyright (c) Marshall Clow 2011-2012. | |
3 | ||
4 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | */ | |
7 | ||
8 | /// \file find_if_not.hpp | |
9 | /// \brief Find the first element in a sequence that does not satisfy a predicate. | |
10 | /// \author Marshall Clow | |
11 | ||
12 | #ifndef BOOST_ALGORITHM_FIND_IF_NOT_HPP | |
13 | #define BOOST_ALGORITHM_FIND_IF_NOT_HPP | |
14 | ||
15 | #include <boost/range/begin.hpp> | |
16 | #include <boost/range/end.hpp> | |
17 | ||
18 | namespace boost { namespace algorithm { | |
19 | ||
20 | /// \fn find_if_not(InputIterator first, InputIterator last, Predicate p) | |
21 | /// \brief Finds the first element in the sequence that does not satisfy the predicate. | |
22 | /// \return The iterator pointing to the desired element. | |
23 | /// | |
24 | /// \param first The start of the input sequence | |
25 | /// \param last One past the end of the input sequence | |
26 | /// \param p A predicate for testing the elements of the range | |
27 | /// \note This function is part of the C++2011 standard library. | |
28 | template<typename InputIterator, typename Predicate> | |
29 | InputIterator find_if_not ( InputIterator first, InputIterator last, Predicate p ) | |
30 | { | |
31 | for ( ; first != last; ++first ) | |
32 | if ( !p(*first)) | |
33 | break; | |
34 | return first; | |
35 | } | |
36 | ||
37 | /// \fn find_if_not ( const Range &r, Predicate p ) | |
38 | /// \brief Finds the first element in the sequence that does not satisfy the predicate. | |
39 | /// \return The iterator pointing to the desired element. | |
40 | /// | |
41 | /// \param r The input range | |
42 | /// \param p A predicate for testing the elements of the range | |
43 | /// | |
44 | template<typename Range, typename Predicate> | |
45 | typename boost::range_iterator<const Range>::type find_if_not ( const Range &r, Predicate p ) | |
46 | { | |
47 | return boost::algorithm::find_if_not (boost::begin (r), boost::end(r), p); | |
48 | } | |
49 | ||
50 | }} | |
51 | #endif // BOOST_ALGORITHM_FIND_IF_NOT_HPP |