view mercurial/bdiff.h @ 49157:5d610521a285 stable

test-dirstate: fix detection of Rust environment variable

The Rust path never actually worked. This change also improves clarity of the
comment. The next change will ensure we print something when this check fails.

Differential Revision: https://phab.mercurial-scm.org/D12601

#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