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-rw-r--r--misc/tst-tsearch.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/misc/tst-tsearch.c b/misc/tst-tsearch.c
index 06f743bc05..bdefdebba7 100644
--- a/misc/tst-tsearch.c
+++ b/misc/tst-tsearch.c
@@ -1,5 +1,5 @@
/* Test program for tsearch et al.
- Copyright (C) 1997, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1997, 2000, 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -171,8 +171,9 @@ mangle_tree (enum order how, enum action what, void **root, int lag)
if (i >= lag)
k = y[i - lag];
else
- k = y[SIZE - i - 1 + lag];
- j = y[i];
+ /* Ensure that the array index is within bounds. */
+ k = y[(SIZE - i - 1 + lag) % SIZE];
+ j = y[i % SIZE];
break;
case ascending: