| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // UNSUPPORTED: no-threads |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| |
| // <latch> |
| |
| // class latch; |
| |
| // void count_down(ptrdiff_t __update = 1); |
| |
| // Make sure that calling count_down with a negative value or a value |
| // higher than the internal counter triggers an assertion. |
| |
| // REQUIRES: has-unix-headers |
| // REQUIRES: libcpp-hardening-mode={{extensive|debug}} |
| // XFAIL: availability-verbose_abort-missing |
| |
| #include <latch> |
| |
| #include "check_assertion.h" |
| |
| int main(int, char **) { |
| { |
| std::latch l(5); |
| |
| TEST_LIBCPP_ASSERT_FAILURE( |
| l.count_down(-10), "latch::count_down called with a negative value"); |
| } |
| |
| { |
| std::latch l(5); |
| |
| TEST_LIBCPP_ASSERT_FAILURE(l.count_down(10), |
| "latch::count_down called with a value greater " |
| "than the internal counter"); |
| } |
| |
| return 0; |
| } |