Memory overcommit example

#include <stdlib.h>
#include <stdio.h>

#define ARRAY_SIZE 1024
#define ELEMENT_SIZE 1<<30 // 1GB

int main() {
    void* ptr[ARRAY_SIZE];
    for (int i = 0; i < ARRAY_SIZE; i++) {
        ptr[i] = malloc(ELEMENT_SIZE);
        if (ptr[i] == NULL) {
            printf("Allocation failed\n");
            break;
        }
    }
    printf("Allocation finished\n");
    getc(stdin);
    return 0;
}