Question

c++ question:
I created a 2d array of size [1024][1024]. The program is now segfaulting right on the line where the array is declared. Why is this?

Answer 1

when you make a declaration of a multidimentional array on that explicit way, you must declare the elements of the array, ex: int[2][2] = { {0,0},{1,1} }, but obviusly this is not helpful for a big size... personally i would use std map or a pointer pointer array

Answer 2

A little code would sure be helpful because "created a 2d array" is not very precise.

Answer 3

sure:
float groupMatrix[maxX][maxY];
that declaration alone causes a segfault when maxX and maxY are over 1020, but doesn't segfault for values < 1020.