Question

I wonder about the multiply operation(*) is overloading in pointer or vice versa?

Or the operators are individual?

C++

Answer 1

It works exactly like all of the operator symbols which can define a
unary or a binary operator (+, - and & are the other ones), it
depends on the number of arguments the function will take. Thus, a
unary * should be defined to take a single operator, either as a
non-static class member taking no arguments (other than this), or as a
free function taking a single argument. The binary operator should be
defined to take two arguments, either as a non-static class member
taking one argument (in addition to this), or a free function taking
two arguments.

Note that the names of the functions are considered the same, so a
binary version can hide a unary one, or vice versa.