view mercurial/bdiff.h @ 42514:e7c55e24d6bf

copies: avoid reusing the same variable for two different copy dicts

"childcopies" is initally the copies the current changeset to one of
its children and then we reassign it with the copies from the start of
the chain to the child. Let's use different names for these two
things.

Differential Revision: https://phab.mercurial-scm.org/D6564

#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