#include <stdio.h>
static float w=3.9;
short f(short a, short *b) {a++; (*b)++; w++;
     printf ("13: %d %d %4.2f\n",a,*b,w);return a-*b;}
int main(){
   x=y=3; z=f(x,&y); printf("11:%d %d %d %4.2f\n", x,y,z,w) ;
}