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-rw-r--r--combine-diff.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/combine-diff.c b/combine-diff.c
index b82f46c..1a6f9d1 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -164,20 +164,22 @@ static void consume_line(void *state_, char *line, unsigned long len)
&state->nb, &state->nn))
return;
state->lno = state->nb;
- if (!state->nb)
- /* @@ -1,2 +0,0 @@ to remove the
- * first two lines...
- */
- state->nb = 1;
- if (state->nn == 0)
+ if (state->nn == 0) {
/* @@ -X,Y +N,0 @@ removed Y lines
* that would have come *after* line N
* in the result. Our lost buckets hang
* to the line after the removed lines,
+ *
+ * Note that this is correct even when N == 0,
+ * in which case the hunk removes the first
+ * line in the file.
*/
state->lost_bucket = &state->sline[state->nb];
- else
+ if (!state->nb)
+ state->nb = 1;
+ } else {
state->lost_bucket = &state->sline[state->nb-1];
+ }
if (!state->sline[state->nb-1].p_lno)
state->sline[state->nb-1].p_lno =
xcalloc(state->num_parent,