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 // UNSUPPORTED: c++03, c++11, c++14 10 // <chrono> 11 12 // ceil 13 14 // template <class Rep, class Period> 15 // constexpr duration<Rep, Period> abs(duration<Rep, Period> d) 16 17 // This function shall not participate in overload resolution unless numeric_limits<Rep>::is_signed is true. 18 19 #include <chrono> 20 21 typedef std::chrono::duration<unsigned> unsigned_secs; 22 23 int main(int, char**) 24 { 25 std::chrono::abs(unsigned_secs(0)); 26 27 return 0; 28 } 29