dereferencing operators

[nature_love]

hey guys.. am learning c++
just started.. am not able to implement member dereferencing operators.. i know there basic definations and rules but...its like.. a clear picture is still not coming to my mind..as in how to make use of them.. please explain with examples..

[Ancient Dragon]

There is no such concept as "dereferencing and operator". Operators are like <, >, <=, /, +, etc. You probably mean dereferencing a pointer.

int n = 123;
int* p = &n;
*p = 0; // dereferencing a pointer

[siddhant3s]

He perhaps, meant that he wants to customize the uranary * operator ( the dereferencing operator) for is custom class.

I don't know why would you like to do that but here is what I got:
Overload dereference operator like this:

T& operator*() const //this will return some value of type T
{
return *m_ptr;//return some value of type T
}

Src: http://www.velocityreviews.com/forums/t450268-overloading-global-dereference-operator.html

[mvmalderen]

He perhaps, meant that he wants to customize the uranary * operator ( the dereferencing operator) for is custom class.

He mentions that he just started learning C++:

hey guys.. am learning c++
just started..

I think that's usually not one of the first topics you'll learn (if you're learning C++), but it could be he meant that though I find it strange he would :) ...

[siddhant3s]

"implementing the dereferencing operator" means overloading it for your class.
I though agree, that the OP may not referring to operator overloading.
Anyways, in that case, the Dragon has already replied.

[ArkM]

There is no such concept as "dereferencing and operator". Operators are like <, >, <=, /, +, etc. You probably mean dereferencing a pointer.

int n = 123;
int* p = &n;
*p = 0; // dereferencing a pointer

It's interesting that there is a page in the new C++ Standard Draft where operator*() named dereferencing operator. However as usually this operator called indirection operator in C++ Std docs.

[nature_love]

okay i think i should clarify my query..
am writing down the definations from my source of learning-
operator function
::* To declare a pointer to a member of a class
.* To access a member using object name and a
pointer to that member
->* To access a member using a pointer to the object
and a pointer to that member

okay..now can u please give me some sample programs using above member dereferencing operators..i'll be highly obliged..
come on guys.. help me out!!

[ArkM]

http://www.informit.com/guides/content.aspx?g=cplusplus&seqNum=142