指向多维数组的指针多维数组

Question

In C++, is there a way to convert a float** to a float[][] type? I also would like to know how to convert it the other way around too.

Answer 1

You don't need to convert anything. Just dereference it by [][] :

float **a;

// allocate memory //

a[0][0] = 1;

Be careful to don't touch out-of-bound items which didn't allocate.

Answer 2

you can look here to see some more examples, but basically as MM said, you don't need to convert and you can always do:

int x[10];
int *y = x;

same with 2 dimensional arrays