x* y;

[cva]

what does x* y means?can anyone explain to me...
thank you.

[cva]

explain as wel x* y=NULL...
thank you.

[vince1027]

It depends on how the operator*() function is overloaded.

In primitive data types, it is the multiplication sign.

[cva]

CComPtr<IDispatch> p; what does this mean "<>" means.

[ropez]

Depends on the context, but I think you mean a declaration this:

x* y;

Declare y as a pointer to an x.

[Nate879]

Look at http://www.cplusplus.com/doc/tutorial/pointers.html for a tutorial on pointers.

[cva]

is this syntax x* y; and x *y different??
or the same??..what is the different?

[Nate879]

cva: they are the same.

[ropez]

int* x, y; // x is a pointer and y is not
int *x, y; // easier to see that in this case

// However, declaring several variables in one line is less common in C++
// This is better:
int* x = 0; // Always initialize pointers
int y;