Pointer multidimensional array to multidimensional array

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.

How would you use this? There are some small differences, like defining a var as an array would have its memory stored contiguously but not in the case of ** — Karthik T, Aug 13 '13 at 6:36

M M. · Answer 1 · 2013-08-13 06:36:11Z

up vote 0 down vote

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.

answered Aug 13 '13 at 6:31

M M.
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No Idea For Name · Answer 2 · 2013-08-13 06:32:40Z

up vote 1 down vote

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

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

same with 2 dimensional arrays

answered Aug 13 '13 at 6:32

No Idea For Name
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