32 lines · 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-exception6//7//===----------------------------------------------------------------------===//8 9// <chrono>10 11// duration12 13// Period shall be a specialization of ratio, diagnostic required.14 15#include <chrono>16 17template <int N, int D = 1>18class Ratio19{20public:21 static const int num = N;22 static const int den = D;23};24 25int main(int, char**)26{27 typedef std::chrono::duration<int, Ratio<1> > D;28 D d;29 30 return 0;31}32