a.c

#include <stdio.h>
int main(void)
{
	char buf[] = "string";
	char * str = buf;
	printf("hallo %x\n", (int)str);
	return 0;
}


/*
gcc a.c 
a.c: In function ‘main’:
a.c:6:23: warning: cast from pointer to integer of different size
*/