1 #include <stdio.h> 2 #include <stdlib.h> 3 main(int argc,const char * argv[])4 int main(int argc, const char* argv[]) 5 { 6 int *int_ptr = (int *)malloc(sizeof(int)); 7 *int_ptr = 7; 8 printf("Hello, world!\n"); 9 printf("Now not crash %d\n", *int_ptr); // Not crash here. 10 } 11