Why does copy assignment operator return *this?
Question
The copy assignment operator should just let the LHS equal the RHS.
Why does it return *this?
1 answers
solution1
3 ACCPTED 2018-11-04 16:11:25
This supports chained assignment:
a = b = c = 0;
This assigns 0 to each of a, b, and c.
Returning a (non-const) reference instead of a value supports things like:
(a = b) = 0;
Which is also allowed, though it's not very common.
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