[PATCH 1/9] xdiff: use ssize_t for dstart/dend, make them last in xdfile_t

From: Ezekiel Newren via GitGitGadget <gitgitgadget@gmail.com>
Date: Oct 15, 2025, 21:18 UTC
Message-ID: <1fa9a7d7d1c309f2f651da351ba7bc0b36272d91.1760563101.git.gitgitgadget@gmail.com>
In-Reply-To: <pull.2070.git.git.1760563101.gitgitgadget@gmail.com>

From: Ezekiel Newren <ezekielnewren@gmail.com>

ssize_t is appropriate for dstart and dend because they both describe positive or negative offsets relative to a pointer.

A future patch will move these fields to a different struct. Moving them to the end of xdfile_t now, means the field order of xdfile_t will be disturbed less.

Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com>
---
 xdiff/xtypes.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xdiff/xtypes.h b/xdiff/xtypes.h
index f145abba3e..3514bb1684 100644
--- a/xdiff/xtypes.h
+++ b/xdiff/xtypes.h
@@ -47,10 +47,10 @@ typedef struct s_xrecord {
 typedef struct s_xdfile {
 	xrecord_t *recs;
 	long nrec;
-	long dstart, dend;
 	bool *changed;
 	long *rindex;
 	long nreff;
+	ssize_t dstart, dend;
 } xdfile_t;
 
 typedef struct s_xdfenv {

-- 
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