xref: /llvm-project/libcxx/test/std/time/time.traits/time.traits.duration_values/zero.pass.cpp (revision 7738db2c06b177fe916ac1bcf3633449b3c1fca9)
1*7738db2cSMark de Wever //===----------------------------------------------------------------------===//
2*7738db2cSMark de Wever //
3*7738db2cSMark de Wever // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*7738db2cSMark de Wever // See https://llvm.org/LICENSE.txt for license information.
5*7738db2cSMark de Wever // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*7738db2cSMark de Wever //
7*7738db2cSMark de Wever //===----------------------------------------------------------------------===//
8*7738db2cSMark de Wever 
9*7738db2cSMark de Wever // <chrono>
10*7738db2cSMark de Wever 
11*7738db2cSMark de Wever // duration_values::zero  // noexcept after C++17
12*7738db2cSMark de Wever 
13*7738db2cSMark de Wever #include <chrono>
14*7738db2cSMark de Wever #include <cassert>
15*7738db2cSMark de Wever 
16*7738db2cSMark de Wever #include "test_macros.h"
17*7738db2cSMark de Wever #include "../../rep.h"
18*7738db2cSMark de Wever 
main(int,char **)19*7738db2cSMark de Wever int main(int, char**)
20*7738db2cSMark de Wever {
21*7738db2cSMark de Wever     assert(std::chrono::duration_values<int>::zero() == 0);
22*7738db2cSMark de Wever     assert(std::chrono::duration_values<Rep>::zero() == 0);
23*7738db2cSMark de Wever #if TEST_STD_VER >= 11
24*7738db2cSMark de Wever     static_assert(std::chrono::duration_values<int>::zero() == 0, "");
25*7738db2cSMark de Wever     static_assert(std::chrono::duration_values<Rep>::zero() == 0, "");
26*7738db2cSMark de Wever #endif
27*7738db2cSMark de Wever 
28*7738db2cSMark de Wever     LIBCPP_ASSERT_NOEXCEPT(std::chrono::duration_values<int>::zero());
29*7738db2cSMark de Wever     LIBCPP_ASSERT_NOEXCEPT(std::chrono::duration_values<Rep>::zero());
30*7738db2cSMark de Wever #if TEST_STD_VER > 17
31*7738db2cSMark de Wever     ASSERT_NOEXCEPT(std::chrono::duration_values<int>::zero());
32*7738db2cSMark de Wever     ASSERT_NOEXCEPT(std::chrono::duration_values<Rep>::zero());
33*7738db2cSMark de Wever #endif
34*7738db2cSMark de Wever 
35*7738db2cSMark de Wever   return 0;
36*7738db2cSMark de Wever }
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