運行成功了不過有個warning
index.cpp:?In?member?function?'Coordinate&?Coordinate::operator--(int)': index.cpp:28:20:?warning:?reference?to?local?variable?'old'?returned?[-Wreturn-local-addr] ?????????Coordinate?old(*this); ????????????????????^~~
index.cpp:?In?member?function?'Coordinate&?Coordinate::operator--(int)': index.cpp:28:20:?warning:?reference?to?local?variable?'old'?returned?[-Wreturn-local-addr] ?????????Coordinate?old(*this); ????????????????????^~~
2018-07-27
舉報
2018-08-11
后置運算符重載不用返回引用類型
2018-08-25
后置運算符重載和雙目運算符重載不需要在類名和operator中間加&符號
2018-07-27
可能你的輸出結果有誤