Virtual Assignment Operator

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This is in contrast to non-member operators, where the left hand operand may be coerced.

As binary operators, these involve two arguments which do not have to be the same type.

are treated as polymorphic functions and as such have different behaviors depending on the types of its arguments.

Operator overloading is usually only syntactic sugar. Consider this operation: .) Operator overloading can provide more than an aesthetic benefit, since the language allows operators to be invoked implicitly in some circumstances.

Because operator overloading allows the programmer to change the usual semantics of an operator, it is usually considered good practice to use operator overloading with care.

To overload an operator is to provide it with a new meaning for user-defined types.

Of special mention are the shift operators, The assignment operator, =, must be a member function, and is given default behavior for user-defined classes by the compiler, performing an assignment of every member using its assignment operator.

This behavior is generally acceptable for simple classes which only contain variables.

Problems, and critics, to the use of operator overloading arise because it allows programmers to give operators completely free functionality, without an imposition of coherency that permits to consistently satisfy user/reader expectations.

Usage of the is an output stream instead this will write "1" to it.


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