cxx/test/utilities/time/time.duration/time.duration.nonmember/op_-.pass.cpp

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//===----------------------------------------------------------------------===// // // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <chrono> // duration // template <class Rep1, class Period1, class Rep2, class Period2> // typename common_type<duration<Rep1, Period1>, duration<Rep2, Period2>>::type // operator-(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs); #include <chrono> #include <cassert> int main() { { std::chrono::seconds s1(3); std::chrono::seconds s2(5); std::chrono::seconds r = s1 - s2; assert(r.count() == -2); } { std::chrono::seconds s1(3); std::chrono::microseconds s2(5); std::chrono::microseconds r = s1 - s2; assert(r.count() == 2999995); } { std::chrono::duration<int, std::ratio<2, 3> > s1(3); std::chrono::duration<int, std::ratio<3, 5> > s2(5); std::chrono::duration<int, std::ratio<1, 15> > r = s1 - s2; assert(r.count() == -15); } { std::chrono::duration<int, std::ratio<2, 3> > s1(3); std::chrono::duration<double, std::ratio<3, 5> > s2(5); std::chrono::duration<double, std::ratio<1, 15> > r = s1 - s2; assert(r.count() == -15); } }