2D array 100x100 stack overflow; no error on heap. c++

Question

I've made a 2D array on the stack by doing:

    grid gridArray[100][100] = {{}};

However, I get a stack overflow.

auto gridArray = new grid[100][100]();

If i put it on the heap, I don't get an error.

I don't exactly know why this is; is the stack unable to allocate as much memory as the heap? Is there any danger in the way I'm doing it now?

Thanks.

Remember that the stack is a limited memory area, usually 1, 2 or 4 MB. — Some programmer dude, Jun 27 '13 at 16:58

score 4 · Accepted Answer · edited May 23 '17 at 12:12

4

I don't exactly know why this is; is the stack unable to allocate as much memory as the heap?

That's exactly it. Stack space is limited. As a rule of thumb, if you have more than a few KB of data you should use the heap.

edited May 23 '17 at 12:12

Community

answered Jun 27 '13 at 16:58

John Kugelman

1 Answers1