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#include <stdio.h>
int add3main(int x, int y, int z)
{
&nbsp;&nbsp; return x+y+z;
}

void add2to3()
{
int (*function_pointer) (int, int) ;
function_pointer = &add3;
&nbsp;&nbsp;&nbsp; i = function_pointer(2,3);
&nbsp;&nbsp;&nbsp; printf(" ans = %d \n",i);
}
 argc, char *argv[])
{
  FILE *info = fopen( "widget.txt", "r");
  int a,b,c;
  if(info == NULL)
  {
    perror("Could not open file");
    return 0;
  }

  if(fscanf(info,"%i %i %i", &a, &b, &c)!=3)
  {
    fprintf(stderr, "Expected but did not find three integers \n");
    fclose(info);
    return 0;
  }
  else
  {
    printf("abc is %i%i%i\n",a,b,c);
  }
  int j=3;
  if(fsetpos(info, &j)!=0)
  {
    perror("fsetpos failed");
    fclose(info);
    return 0;
  }

  if(fscanf(info,"%i %i %i", &a, &b, &c)!=3)
  {
    fprintf(stderr, "Expected but did not find %i %i %i \n");
  }
  else
  {
    printf("abc is %i%i%i \n",a,b,c);
  }

 fclose(info);
 return 0;
}

}