| // Copyright (C) 2020-2021 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 |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-options "-std=gnu++2a" } |
| // { dg-do run { target c++2a } } |
| |
| // PR libstdc++/97828 |
| |
| #include <algorithm> |
| #include <testsuite_hooks.h> |
| #include <testsuite_iterators.h> |
| |
| using __gnu_test::test_sized_range; |
| using __gnu_test::forward_iterator_wrapper; |
| using __gnu_test::random_access_iterator_wrapper; |
| |
| template<template<typename> typename Wrapper> |
| void |
| test01() |
| { |
| int x[] = {0,42,42,0,42,42,42}; |
| test_sized_range<int, Wrapper> rx(x); |
| auto res = std::ranges::search_n(rx, 3, 42); |
| VERIFY( res.begin().ptr == x+4 && res.end().ptr == x+7 ); |
| } |
| |
| template<template<typename> typename Wrapper> |
| void |
| test02() |
| { |
| int x[] = {0,42,42,0,42}; |
| test_sized_range<int, Wrapper> rx(x); |
| auto res = std::ranges::search_n(rx, 3, 42); |
| VERIFY( res.begin().ptr == x+5 && res.end().ptr == x+5 ); |
| } |
| |
| int |
| main() |
| { |
| test01<forward_iterator_wrapper>(); |
| test01<random_access_iterator_wrapper>(); |
| test02<forward_iterator_wrapper>(); |
| test02<random_access_iterator_wrapper>(); |
| } |