Why do most books recommend that the assignment operator return a reference to *this?

Asked May 07 '12 at 13:12

Active May 07 '12 at 13:21

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Overloading assignment operator in C++
C++ why the assignment operator should return a const ref in order to avoid (a=b)=c

Why do most books recommend that the assignment operator return a refernce to this? Why not a const reference?

const will make strange code like (a=b)=c not compile which is a good thing.

edited May 23 '17 at 11:56

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asked May 07 '12 at 13:12

OopsUser

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...and this: http://stackoverflow.com/questions/2649068/has-anyone-found-the-need-to-declare-the-return-parameter-of-a-copy-assignment-o – Jason S May 07 '12 at 13:17

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