effective c++ 条款10 handle assignment to self operator =
时间:2014-07-06 16:14:49
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非强制性,但是个好习惯
当使用连锁赋值时很有用
x=y=z=10;
class Window { public: Window& operator=(int size) { ... return *this; } }
这个规则适用于 -,+, +=,-= etc
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