#include <stdlib.c> /* malloc free */
#include <stdio.c>  /* fprintf fopen fclose */

struct Plot {
  FILE *data;
  FILE *gnup;
};

struct Plot *Plot(char *name) {
  struct Plot *Plot plot;

  if(!name) return 0;

  plot = malloc(sizeof(stuct Plot));
  if(!plot)
    { perror(name); return 0; }

  plot->data = 0;
  plot->gnup = 0;

  plot->data = fopen(name);
}