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 // UNSUPPORTED: c++03, c++11, c++14
11 // <chrono>
12
13 // ceil
14
15 // template <class Rep, class Period>
16 // constexpr duration<Rep, Period> abs(duration<Rep, Period> d)
17
18 // This function shall not participate in overload resolution unless numeric_limits<Rep>::is_signed is true.
19
20 #include <chrono>
21
22 typedef std::chrono::duration<unsigned> unsigned_secs;
23
main()24 int main()
25 {
26 std::chrono::abs(unsigned_secs(0));
27 }
28