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What r differences between *p and **p in C++
Sep 12, 2014 at 10:33pm
int **P
*p=&x;
is p point to the x's address's address?
and *p point to the x's address? **p=n?
*p=&x;
is p point to the x's address's address?
and *p point to the x's address? **p=n?
Last edited on Sep 12, 2014 at 10:38pm
Sep 12, 2014 at 11:11pm *p1 = &x means p1 holds the address of x. In other words, p1 points to x. *p2 = &p1 means p2 holds the address of p1. (ofcourse, p1 is a variable and has an address).Hence,
p2 is declared **p2 coz it holds the addess of a pointer that holds the address of another object.p2 is therefore a pointer to a pointer .
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