#include "mplot.h"void plotpoly(int num[], double *ff[]){	double *xp, *yp, **fp;	int i, *n;	n = num;	fp = ff;	while((i = *n++)){		xp = *fp++;		yp = xp+1;		move(*xp, *yp);		while(--i){			xp += 2;			yp += 2;			vec(*xp, *yp);		}	}}