overloading composite operator in c++ (.*)

Question

I have implemented a Matrix class implementation for matrix manipulation, and so far i can overload ordinary (single) operators such as +, *, ...

I want to do Matrix elementary multiplication by overloading the operator (.*), such as i can write

Matrix A(5,3), B(5, 3), C;
C = A .* B;

C, in this case, will hold the value of multiplication element by element from A and B (A and B have same dimensions)

@formerlyknownas_463035818 my question is can I technically overload the operator (.*) (point star), in case we can, how? — rachid el kedmiri, Jan 12 '20 at 11:05
Does this answer your question? [Overloading member access operators ->, .\* (C++)](https://stackoverflow.com/questions/8777845/overloading-member-access-operators-c) — TruthSeeker, Jan 12 '20 at 11:05
there is `std::val_array` which supports element wise operations — 463035818_is_not_a_number, Jan 12 '20 at 11:06

score 5 · Accepted Answer · answered Jan 12 '20 at 11:06

From this operator overloading reference

Restrictions

The operators :: (scope resolution), . (member access), .* (member access through pointer to member), and ?: (ternary conditional) cannot be overloaded.

In short, it's not possible to overload the "dot" member access operators like .*.

score 3 · Answer 2 · answered Jan 12 '20 at 11:06

3

Here you can see the "pointer to member of object" .* operator is not overloadable in c++.

answered Jan 12 '20 at 11:06

Hawky

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overloading composite operator in c++ (.*)

2 Answers2

Restrictions