xdiff: avoid using the comma operator unnecessarily

The comma operator is a somewhat obscure C feature that is often used by mistake and can even cause unintentional code flow. While the code in this patch used the comma operator intentionally (to avoid curly brackets around two statements, each, that want to be guarded by a condition), it is better to surround it with curly brackets and to use a semicolon instead. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Johannes Schindelin committed Mar 27, 2025 at 11:52 UTC 324fbaab88126196bd42e7fa383ee94e165d61b5
1 file changed +8 -4
xdiff/xdiffi.c
+8 -4
@@ -211,8 +211,10 @@ static long xdl_split(unsigned long const *ha1, long off1, long lim1,
211 for (d = fmax; d >= fmin; d -= 2) {
212 i1 = XDL_MIN(kvdf[d], lim1);
213 i2 = i1 - d;
214 - if (lim2 < i2)
215 - i1 = lim2 + d, i2 = lim2;
214 + if (lim2 < i2) {
215 + i1 = lim2 + d;
216 + i2 = lim2;
217 + }
218 if (fbest < i1 + i2) {
219 fbest = i1 + i2;
220 fbest1 = i1;
@@ -223,8 +225,10 @@ static long xdl_split(unsigned long const *ha1, long off1, long lim1,
225 for (d = bmax; d >= bmin; d -= 2) {
226 i1 = XDL_MAX(off1, kvdb[d]);
227 i2 = i1 - d;
226 - if (i2 < off2)
227 - i1 = off2 + d, i2 = off2;
228 + if (i2 < off2) {
229 + i1 = off2 + d;
230 + i2 = off2;
231 + }
232 if (i1 + i2 < bbest) {
233 bbest = i1 + i2;
234 bbest1 = i1;