Prevent false positive sanitizer warning in unpack().

Reported by Sergey Bronnikov. #1450

1 files changed, 3 insertions, 1 deletions

diff --git a/src/lib_base.c b/src/lib_base.c
index 0f402400..046518c7 100644
--- a/src/lib_base.c
+++ b/src/lib_base.c
@@ -236,7 +236,9 @@ LJLIB_CF(unpack)
     } else {
       setnilV(L->top++);
     }
-  } while (i++ < e);
+    if (i >= e) break;
+    i++;
+  } while (1);
   return n;
 }