2d array pointer

[c94wjpn]

ok mind telling us what you're trying to do?

Trying to define a pointer to a 2d array which has a stride of 8.
If I know that my doubles are in a consecutive memory block at location p, and the stride is 8, then the notations

p[y][x]
and
p[y*8 + x]

should be equivalent, and hence I should be able to define

double * q = 0; ///ok

also

double q[][8] = 0; /// not ok.