diff-rcm/diff.h

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define ARGC_ERROR 1
#define TOOMANYFILES_ERROR 2
#define CONFLICTING_OUTPUT_OPTIONS 3

#define MAXSTRINGS 1024
#define MAXPARAS 4096

#define HASHLEN 200
#define BUFLEN 256

typedef struct pa pa;
struct pa {
  char** base;
  int filesize;
  int start;
  int stop;
};

FILE *fin1, *fin2;

const char* files[2] = { NULL, NULL };

char buf[BUFLEN];
char *strings1[MAXSTRINGS], *strings2[MAXSTRINGS];

int showversion = 0, showbrief = 0, ignorecase = 0, report_identical = 0, showsidebyside = 0;
int showleftcolumn = 0, showunified = 0, showcontext = 0, suppresscommon = 0, diffnormal = 0;
int showhelp = 0;

int equal = 0;

int cnt = 0;
int count1 = 0, count2 = 0;

pa* p;
pa* q;