Problems passing array by reference to threads

Question

I\'m learning threading and I\'ve found some simple examples.

What I\'m hoping to do is create 5 threads, that each assign a random number to an array of 20 int\'s.

Answer 1

The other answers cover the main points: there's another one that is often an issue (at least on LINUX: not sure about windows)

int array1[1000000];
int array2[1000000];

Declaring very large arrays as local variables runs the danger of overflowing your stack space, thus crashing your program.