Move assignment operator: Difference between revisions

Revision as of 09:37, 13 June 2019

Revision as of 06:47, 23 June 2019

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Consider the following move assignment operator for a simple string class:<ref>{{Cite web|title = Move Constructors and Move Assignment Operators (C++)|url = https://msdn.microsoft.com/en-us/library/dd293665.aspx|website = msdn.microsoft.com|access-date = 2016-02-23}}</ref><syntaxhighlight lang="c++">

class String {

public:

char* data;

String& operator=(String&& other) {

// If we're not trying to move the object into itself...

public:

String&if operator(this !=(String && other) {

delete if (this != &other) { ->data_; // If we're not trying to moveDelete the objectstring's intooriginal itself..data.

delete this->data; data_ = other.data_; // DeleteCopy the other string's originaldata into datathis string.

this->dataother.data_ = other.datanullptr; // CopyFinally, reset the other string's data into this stringpointer.

other.data = nullptr; // Finally, reset the other string's data pointer.

}

return *this;

}

return *this;

}

private:

char* datadata_;

};

</syntaxhighlight>

==References==

<references />