What's the use of .* operator in c++?

hi everybody,

What's the use of .* operator in c++?
please explain this concept with an example.

These are two different operators.

The asterisk dereferences a pointer. (Gets-to the data pointed-to by the pointer.)

The period/dot-operator accesses either a data member of a structure, or a data-member or member-function of an object.

So, together they would access either member-data or a member function via a pointer.

Code:

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X = DougDbug.*pAge;    //X = Doug's age
Y = avil_beloved.*pAge;  // Y = Avil's age

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nitpick.* is a syntax error, *grib.pAge de-references what member pointer pAge references. This is why you have -> if grib was a pointer to a structure then you would need the ugly syntax *(*pGrib).pAge

Quote:

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Originally Posted by DougDbug

These are two different operators.

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No.

Here's a page I found explaining this operator and the ->* operator thoroughly.
http://linuxquality.sunsite.dk/articles/memberpointers/

Sang-drax is correct

Pointer to member provides only an offset into an object of the member's class at which that member can be found.

Can't be overloaded as well.

Mr. C. ;)

that is a pointer which references to contents of another variables address for instance

int *p
p=&a;

which means that p references the contents of the variable a's address.