| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <iterator> |
| |
| // back_insert_iterator |
| |
| // back_insert_iterator<Cont> operator++(int); |
| |
| #include <iterator> |
| #include <vector> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "nasty_containers.h" |
| #include "test_constexpr_container.h" |
| |
| template <class C> |
| TEST_CONSTEXPR_CXX20 bool |
| test(C c) |
| { |
| std::back_insert_iterator<C> i(c); |
| std::back_insert_iterator<C> r = i++; |
| r = 0; |
| assert(c.size() == 1); |
| assert(c.back() == 0); |
| return true; |
| } |
| |
| int main(int, char**) |
| { |
| test(std::vector<int>()); |
| test(nasty_vector<int>()); |
| #if TEST_STD_VER >= 20 |
| test(ConstexprFixedCapacityDeque<int, 10>()); |
| static_assert(test(ConstexprFixedCapacityDeque<int, 10>())); |
| #endif |
| return 0; |
| } |