1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This test uses new symbols that were not defined in the libc++ shipped on
11 // darwin11 and darwin12:
12 // XFAIL: with_system_lib=x86_64-apple-darwin11
13 // XFAIL: with_system_lib=x86_64-apple-darwin12
14 
15 // <chrono>
16 
17 // high_resolution_clock
18 
19 // check clock invariants
20 
21 #include <chrono>
22 
23 template <class _Tp>
test(const _Tp &)24 void test(const _Tp &) {}
25 
main()26 int main()
27 {
28     typedef std::chrono::high_resolution_clock C;
29     static_assert((std::is_same<C::rep, C::duration::rep>::value), "");
30     static_assert((std::is_same<C::period, C::duration::period>::value), "");
31     static_assert((std::is_same<C::duration, C::time_point::duration>::value), "");
32     static_assert(C::is_steady || !C::is_steady, "");
33     test(std::chrono::high_resolution_clock::is_steady);
34 }
35