- if (unidiff_zero) {
- match_beginning = (!leading && !frag->oldpos);
- match_end = 0;
- }
- else {
- match_beginning = !leading && (frag->oldpos == 1);
- match_end = !trailing;
- }
+ match_beginning = frag->oldpos <= 1;
+
+ /*
+ * A hunk without trailing lines must match at the end.
+ * However, we simply cannot tell if a hunk must match end
+ * from the lack of trailing lines if the patch was generated
+ * with unidiff without any context.
+ */
+ match_end = !unidiff_zero && !trailing;