/* File compare */›/* This program will compare two files and tell you if they are the same */›int n1,n2,count,c,c2,a1,a2,a3;›char name1[20],name2[20];›main() $(›  printf("Filename #1? ");›  gets(name1);›  printf("Filename #2? ");›  gets(name2);›  normalize(name1," ");›  normalize(name2," ");›  if((n1=copen(name1,'r'))<0) $(›    printf("can't open %s\n",name1);›    getkey();›    exit();›  $)›  if((n2=copen(name2,'r'))<0) $(›    printf("can't open %s\n",name2);›    getkey();›    exit();›  $)›  a1=a2=a3=count=0;›  fast();›  while((c=cgetc(n1))>=0) $(›    if(c!=(c2=cgetc(n2))) $(›      slow();›      printf(" Files are different at  %d\n%s !=  %s\n%d != %d   $%x != $%x",count,name1,name2,c,c2,c,c2);›      printf("  '%c' != '%c'\n",c,c2);›      printf("$%x $%x $%x >%x< $%x $%x $%x\n",a1,a2,a3,c,cgetc(n1),cgetc(n1),cgetc(n1));›      exit();›    $)›    ++count;›    a1=a2;›    a2=a3;›    a3=c;›  $)›  if((cgetc(n2)>0)) $(›    slow();›    printf("%s is larger than %s\n",name2,name1);›    exit();›  $)›  slow();›  printf("%s == %s\n",name1,name2);›  exit();›$)›