add wcsstr regression test

[libc-test] / src / regression / wcsstr-false-negative.c

diff --git a/src/regression/wcsstr-false-negative.c b/src/regression/wcsstr-false-negative.c
new file mode 100644 (file)
index 0000000..7283472
--- /dev/null
+++ b/src/regression/wcsstr-false-negative.c
@@ -0,0 +1,14 @@
+// commit 476cd1d96560aaf7f210319597556e7fbcd60469 2014-04-18
+// wcsstr (strstr and memmem) failed to match repetitive needles in some cases
+#include <wchar.h>
+#include "test.h"
+
+int main(int argc, char* argv[])
+{
+       wchar_t const *haystack = L"playing play play play always";
+       wchar_t const *needle = L"play play play";
+       wchar_t *p = wcsstr(haystack, needle);
+       if (p != haystack+8)
+               t_error("wcsstr(L\"%S\",L\"%S\") failed: got %p, want %p\n", haystack, needle, p, haystack+8);
+       return t_status;
+}