I have enough stack space for my array, so why does this loop fail?

Question

int width = 2560;
int height = 1440;
int frameBuffer[width*height];
for (int i = 0; i < width*height; ++i)
    frameBuffer[i]=i;

This code locks

Answer 1

the number of elements the array is going to hold, must be a constant value, since arrays are blocks of non-dynamic memory whose size must be determined before execution. In order to create arrays with a variable length dynamic memory is needed

use int frameBuffer[2560*1440];