cxx/test/utilities/time/time.duration/ratio.fail.cpp

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <chrono>
// duration
// Period shall be a specialization of ratio, diagnostic required.
#include <chrono>
template <int N, int D = 1>
class Ratio
{
public:
static const int num = N;
static const int den = D;
};
int main()
{
typedef std::chrono::duration<int, Ratio<1> > D;
D d;
}