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-rw-r--r--string/test-strchr.c65
1 files changed, 64 insertions, 1 deletions
diff --git a/string/test-strchr.c b/string/test-strchr.c
index c795eac6fa..72b17af687 100644
--- a/string/test-strchr.c
+++ b/string/test-strchr.c
@@ -255,6 +255,69 @@ check1 (void)
check_result (impl, s, c, exp_result);
}
+static void
+check2 (void)
+{
+ CHAR *s = (CHAR *) (buf1 + getpagesize () - 4 * sizeof (CHAR));
+ CHAR *s_begin = (CHAR *) (buf1 + getpagesize () - 64);
+#ifndef USE_FOR_STRCHRNUL
+ CHAR *exp_result = NULL;
+#else
+ CHAR *exp_result = s + 1;
+#endif
+ CHAR val = 0x12;
+ for (; s_begin != s; ++s_begin)
+ *s_begin = val;
+
+ s[0] = val + 1;
+ s[1] = 0;
+ s[2] = val + 1;
+ s[3] = val + 1;
+
+ {
+ FOR_EACH_IMPL (impl, 0)
+ check_result (impl, s, val, exp_result);
+ }
+ s[3] = val;
+ {
+ FOR_EACH_IMPL (impl, 0)
+ check_result (impl, s, val, exp_result);
+ }
+ exp_result = s;
+ s[0] = val;
+ {
+ FOR_EACH_IMPL (impl, 0)
+ check_result (impl, s, val, exp_result);
+ }
+
+ s[3] = val + 1;
+ {
+ FOR_EACH_IMPL (impl, 0)
+ check_result (impl, s, val, exp_result);
+ }
+
+ s[0] = val + 1;
+ s[1] = val + 1;
+ s[2] = val + 1;
+ s[3] = val + 1;
+ s[4] = val;
+ exp_result = s + 4;
+ {
+ FOR_EACH_IMPL (impl, 0)
+ check_result (impl, s, val, exp_result);
+ }
+ s[4] = 0;
+#ifndef USE_FOR_STRCHRNUL
+ exp_result = NULL;
+#else
+ exp_result = s + 4;
+#endif
+ {
+ FOR_EACH_IMPL (impl, 0)
+ check_result (impl, s, val, exp_result);
+ }
+}
+
int
test_main (void)
{
@@ -263,7 +326,7 @@ test_main (void)
test_init ();
check1 ();
-
+ check2 ();
printf ("%20s", "");
FOR_EACH_IMPL (impl, 0)
printf ("\t%s", impl->name);