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-rw-r--r--string/test-strstr.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/string/test-strstr.c b/string/test-strstr.c
index 8d99716ff3..5861b01b73 100644
--- a/string/test-strstr.c
+++ b/string/test-strstr.c
@@ -151,6 +151,32 @@ check2 (void)
}
}
+#define N 1024
+
+static void
+pr23637 (void)
+{
+ char *h = (char*) buf1;
+ char *n = (char*) buf2;
+
+ for (int i = 0; i < N; i++)
+ {
+ n[i] = 'x';
+ h[i] = ' ';
+ h[i + N] = 'x';
+ }
+
+ n[N] = '\0';
+ h[N * 2] = '\0';
+
+ /* Ensure we don't match at the first 'x'. */
+ h[0] = 'x';
+
+ char *exp_result = stupid_strstr (h, n);
+ FOR_EACH_IMPL (impl, 0)
+ check_result (impl, h, n, exp_result);
+}
+
static int
test_main (void)
{
@@ -158,6 +184,7 @@ test_main (void)
check1 ();
check2 ();
+ pr23637 ();
printf ("%23s", "");
FOR_EACH_IMPL (impl, 0)
@@ -202,6 +229,9 @@ test_main (void)
do_test (15, 9, hlen, klen, 1);
do_test (15, 15, hlen, klen, 0);
do_test (15, 15, hlen, klen, 1);
+
+ do_test (15, 15, hlen + klen * 4, klen * 4, 0);
+ do_test (15, 15, hlen + klen * 4, klen * 4, 1);
}
do_test (0, 0, page_size - 1, 16, 0);