view mercurial/bdiff.h @ 44108:c472970339d2

changectx: use unfiltered changelog to walk ancestors in annotate

Since we are only walking ancestors, it is safe to use an unfiltered repository.
(Because if the original rev is not filtered, none of its ancestors will be).

Differential Revision: https://phab.mercurial-scm.org/D7501

#ifndef _HG_BDIFF_H_
#define _HG_BDIFF_H_

#include "compat.h"

struct bdiff_line {
	int hash, n, e;
	ssize_t len;
	const char *l;
};

struct bdiff_hunk;
struct bdiff_hunk {
	int a1, a2, b1, b2;
	struct bdiff_hunk *next;
};

int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);
int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,
               struct bdiff_hunk *base);
void bdiff_freehunks(struct bdiff_hunk *l);

#endif