libcxx/test/std/time/time.duration/time.duration.cons/default.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <chrono>
  10
  11 // duration
  12
  13 // duration() = default;
  14
  15 // Rep must be default initialized, not initialized with 0
  16
  17 #include <chrono>
  18 #include <cassert>
  19
  20 #include "test_macros.h"
  21 #include "../../rep.h"
  22
  23 template <class D>
  24 void
  25 test()
  26 {
  27     D d;
  28     assert(d.count() == typename D::rep());
  29 #if TEST_STD_VER >= 11
  30     constexpr D d2 = D();
  31     static_assert(d2.count() == typename D::rep(), "");
  32 #endif
  33 }
  34
  35 int main(int, char**)
  36 {
  37     test<std::chrono::duration<Rep> >();
  38
  39   return 0;
  40 }