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 // <chrono> 11 12 // time_point 13 14 // time_point& operator-=(const duration& d); 15 16 #include <chrono> 17 #include <cassert> 18 19 int main() 20 { 21 typedef std::chrono::system_clock Clock; 22 typedef std::chrono::milliseconds Duration; 23 std::chrono::time_point<Clock, Duration> t(Duration(3)); 24 t -= Duration(2); 25 assert(t.time_since_epoch() == Duration(1)); 26 } 27
