07/08/13 12:10:44
>>295
これかしらん？
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＞ -15- Whenever a temporary class object is copied using a copy constructor, and this object and the copy have the same cv-unqualified type,
an implementation is permitted to treat the original and the copy as two different ways of referring to the same object and not perform a copy at all,
even if the class copy constructor or destructor have side effects.