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-rw-r--r--string/test-memcpy.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/string/test-memcpy.c b/string/test-memcpy.c
index 2a0994ca98..cb072f8674 100644
--- a/string/test-memcpy.c
+++ b/string/test-memcpy.c
@@ -53,6 +53,12 @@ static void
do_one_test (impl_t *impl, char *dst, const char *src,
size_t len)
{
+ size_t i;
+
+ /* Must clear the destination buffer set by the previous run. */
+ for (i = 0; i < len; i++)
+ dst[i] = 0;
+
if (CALL (impl, dst, src, len) != MEMCPY_RESULT (dst, len))
{
error (0, 0, "Wrong result in function %s %p %p", impl->name,