The comment makes it seem that the result itself is an error code. But
all it does is simply return -1 to indicate an error occured;
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index 614a530c..6a7323e0 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -728,9 +728,9 @@ typedef struct {
/* total bytes in file */
off_t total;
/* download result code:
- * 0 - download completed successfully
- * 1 - the file is up-to-date
- * negative - error code
+ * 0 - download completed successfully
+ * 1 - the file is up-to-date
+ * -1 - error
*/
int result;
} alpm_download_event_completed_t;
--
2.29.2
