diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 0cb27bd401d..91b5177f94d 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,9 @@ +2017-05-19 Jonathan Wakely + + PR libstdc++/80796 + * include/bits/stl_algo.h (search): Add new overload for C++17. + * testsuite/25_algorithms/search/searcher.cc: New. + 2017-05-18 Jonathan Wakely PR libstdc++/80478 diff --git a/libstdc++-v3/include/bits/stl_algo.h b/libstdc++-v3/include/bits/stl_algo.h index 2cd5303a100..e61f654c11d 100644 --- a/libstdc++-v3/include/bits/stl_algo.h +++ b/libstdc++-v3/include/bits/stl_algo.h @@ -4258,6 +4258,20 @@ _GLIBCXX_BEGIN_NAMESPACE_ALGO __gnu_cxx::__ops::__iter_comp_val(__binary_pred, __val)); } +#if __cplusplus > 201402L + /** @brief Search a sequence using a Searcher object. + * + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __searcher A callable object. + * @return @p __searcher(__first,__last).first + */ + template + inline _ForwardIterator + search(_ForwardIterator __first, _ForwardIterator __last, + const _Searcher& __searcher) + { return __searcher(__first, __last).first; } +#endif /** * @brief Perform an operation on a sequence. diff --git a/libstdc++-v3/testsuite/25_algorithms/search/searcher.cc b/libstdc++-v3/testsuite/25_algorithms/search/searcher.cc new file mode 100644 index 00000000000..794cdb9a678 --- /dev/null +++ b/libstdc++-v3/testsuite/25_algorithms/search/searcher.cc @@ -0,0 +1,47 @@ +// Copyright (C) 2017 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// . + +// { dg-options "-std=gnu++17" } +// { dg-do run { target c++1z } } + +#include +#include + +struct nocopy +{ + nocopy() = default; + nocopy(const nocopy&) = delete; + nocopy& operator=(const nocopy&) = delete; + + struct P { int* first; }; + + P operator()(int* f, int* l) const { return {f}; } +}; + +void +test01() +{ + int i[] = { 1, 2 }; + auto res = std::search(i, i + 2, nocopy{}); + VERIFY( res == i ); +} + +int +main() +{ + test01(); +}