0
The 'this' pointer is not an operator, it is a special pointer that exists within every instance of a class, and always points to the current instance of that class. It can only be used in non-static methods of the class because static methods do not have a 'this' pointer; static methods can be called even when there is no instance of the class.
Whenever an instance method refers to one of its own members (non-static members), the 'this' pointer is implied:
int CMyObject::foo()
{
return( this->bar ); // returns the bar member of this instance.
}
The 'this' pointer also makes it possible for an instance to compare itself to other instance references (often to ensure they are different instances) as well as to return a reference to itself. The assignment operator cannot be implemented any other way:
CMyObject& CMyObject::operator= (const CMyObject & rhs )
{
if( this != &rhs ) // check for self-reference
bar = rhs.bar; // perform assignment
return( *this ); // return a reference to this instance.
}
The 'this' pointer also allows an instance to pass a reference or pointer to itself to external functions, including the methods of other instances of the same class.
What else can I help you with?
What is the purpose of method statement and what is required of the operator?
The purpose of a method statement is that it provides us with the details of what the required operator is supposed to do.
What is the purpose of a method statement and what is required of the operator?
The purpose of a method statement is that it provides us with the details of what the required operator is supposed to do.
What are the duties of switchboard operator?
the purpose of a switch board is a connection for
What is the purpose of using the "phase operator" in quantum mechanics?
The purpose of using the "phase operator" in quantum mechanics is to describe the phase of a quantum state, which is important for understanding interference effects and the behavior of quantum systems.
What is the operator that cannot be overloaded?
There are 5 operators which cannot be overloaded. They are: * .* - class member access operator * :: - scope resolution operator * . - dot operator * ?:: - conditional operator * Sizeof() - operator Note:- This is possible only in C++.
What is the purpose of the safety landyard on pwc?
to stop the engine if the operator falls overboard
What is the purpose for a safety lanyard on a PWC?
To shut off the engine if the operator falls overboard.
What is the purpose of a lanyard attached to an ignition safety switch?
to shut off the engine if the operator falls overboard
What is the purpose of a lanyard attached to ignition switch on a boat?
to shut off the engine if the operator falls overboard
What is the purpose of a lanyard attached to the ignition safety switch?
to shut off the engine if the operator falls overboard
What the purpose of a lanyard attached to a ignition safety switch?
to shut off the engine if the operator falls overboard
What is the purpose of a lanyard attached to the safety ignition switch?
to shut off the engine if the operator falls overboard
