reference to pointers.

[jackel7777]

What is reference to pointers? And where/when do you use them?

int x =10;
int *p1 = &x;
int *&r1 = p1;

[Takiro]

Hope that helps http://www.cplusplus.com/doc/tutorial/pointers/

[jackel7777]

well i read it before i posted..there is no explanation of ref-to-pointer.

[Athar]

There is no conceptual difference between a reference to a pointer and a reference to any other variable.

[quirkyusername]

if you need to modify the pointer, not just the data pointed to by it, pass a reference to a pointer