#include <stdio.h>
#include <pthread.h>

static int check = 0;

void* go_smith(void* arg)
{
	if(arg)
	{
		pthread_t *psmith = (pthread_t*) arg;
		printf("I am Agent Smith %x @%p (%d)\n",*psmith,&check,check);
		check = 2;
		pthread_exit(0);
	}
	else
	{
		printf("I am Agent Smith 0 @%p (%d)\n",&check,check);
	}
	return 0x0;
}

int main(int argc, char *argv[])
{
	pthread_t smith;
	check = 1;
	pthread_create(&smith,0x0,&go_smith,&smith);
	pthread_join(smith,0x0);
	go_smith(0x0);
	return 0;
}