can i change the value of an int with a pointer. e.q.
int n = 20;
int *size = n;
can i change n by doing this *size++.
thanx
Donnovan -3 Newbie Poster
mattjbond 54 Junior Poster
No. This will increment the pointer first and then deference the result. You would require paretheses here to achieve the result you want.
(*size)++This is because unary unary operators like ++ associate right to left..
Also you have a problem in that the expression
int *size = n;is probably not doing what you intend. this is setting the pointer to an adress of 0x00000014 (20), not pointing it at n as you seem to desire. You need to use the address of operator to set size pointing to n.
int *size = &n; Donnovan -3 Newbie Poster
thnx, mattjbond
sweetyk2 0 Newbie Poster
exactly,This will increment the pointer first and then deference the result. You need paretheses
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