xdiff: avoid signed vs. unsigned comparisons in xemit.c

The unsigned `ignored` variable causes expressions to promote to unsigned. Use a signed value to make comparisons use the same types. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

David Aguilar committed Feb 11, 2025 at 22:04 UTC 46fb0843536f2e9281c45042b024098a38236b17
1 file changed +1 -3
xdiff/xemit.c
+1 -3
@@ -20,8 +20,6 @@
20 *
21 */
22
23 -#define DISABLE_SIGN_COMPARE_WARNINGS
24 -
23 #include "xinclude.h"
24
25 static long xdl_get_rec(xdfile_t *xdf, long ri, char const **rec) {
@@ -56,7 +54,7 @@ xdchange_t *xdl_get_hunk(xdchange_t **xscr, xdemitconf_t const *xecfg)
54 xdchange_t *xch, *xchp, *lxch;
55 long max_common = 2 * xecfg->ctxlen + xecfg->interhunkctxlen;
56 long max_ignorable = xecfg->ctxlen;
59 - unsigned long ignored = 0; /* number of ignored blank lines */
57 + long ignored = 0; /* number of ignored blank lines */
58
59 /* remove ignorable changes that are too far before other changes */
60 for (xchp = *xscr; xchp && xchp->ignore; xchp = xchp->next) {