I have a function defined a local variable typed in CStringW, is it safe to return this object to the caller by value, not by reference?
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I have a function defined a local variable typed in CStringW, is it safe to return this object to the caller by value, not by reference?
Yes, it should be ok.
CStringinternally uses a buffer with reference counting and does copy-on-write, so that when you create a copy ofCStringand then destroy the original object, everything should “just work”.