1 files changed, 55 insertions, 0 deletions
diff --git a/src/grep/gnulib-tests/test-mbsinit.c b/src/grep/gnulib-tests/test-mbsinit.c
new file mode 100644
index 0000000..bda3a3b
--- /dev/null
+++ b/src/grep/gnulib-tests/test-mbsinit.c
@@ -0,0 +1,55 @@
+/* Test of test for initial conversion state.
+   Copyright (C) 2008-2021 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (mbsinit, int, (const mbstate_t *));
+
+#include <locale.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  static mbstate_t state;
+
+  ASSERT (mbsinit (NULL));
+
+  ASSERT (mbsinit (&state));
+
+  if (argc > 1)
+    {
+      static const char input[1] = "\303";
+      wchar_t wc;
+      size_t ret;
+
+      /* configure should already have checked that the locale is supported.  */
+      if (setlocale (LC_ALL, "") == NULL)
+        return 1;
+
+      ret = mbrtowc (&wc, input, 1, &state);
+      ASSERT (ret == (size_t)(-2));
+      ASSERT (!mbsinit (&state));
+    }
+
+  return 0;
+}