xdiff: use ptrdiff_t for dstart/dend

ptrdiff_t is appropriate for dstart and dend because they both describe positive or negative offsets relative to a pointer. Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ezekiel Newren committed Nov 18, 2025 at 22:34 UTC f007f4f4b473565fb2e94780028399030926bacb
1 file changed +1 -1
xdiff/xtypes.h
+1 -1
@@ -47,7 +47,7 @@ typedef struct s_xrecord {
47 typedef struct s_xdfile {
48 xrecord_t *recs;
49 long nrec;
50 - long dstart, dend;
50 + ptrdiff_t dstart, dend;
51 bool *changed;
52 long *rindex;
53 long nreff;