X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-mbrtowc.c;h=02b784153dccd2be93285c8971062b4dcf8a7d34;hb=refs%2Ftags%2Fstable%2F20120404;hp=d84bafe434e1f7e5bd3d0f4e8bfd1e213a4c9b2f;hpb=987e5651e8d1c5aa933c9ce88562806af4093702;p=gnulib.git

diff --git a/tests/test-mbrtowc.c b/tests/test-mbrtowc.c
index d84bafe43..02b784153 100644
--- a/tests/test-mbrtowc.c
+++ b/tests/test-mbrtowc.c
@@ -1,5 +1,5 @@
 /* Test of conversion of multibyte character to wide character.
-   Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2008-2012 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
@@ -143,6 +143,11 @@ main (int argc, char *argv[])
           ASSERT (mbsinit (&state));
           input[1] = '\0';
 
+          /* Test support of NULL first argument.  */
+          ret = mbrtowc (NULL, input + 2, 3, &state);
+          ASSERT (ret == 1);
+          ASSERT (mbsinit (&state));
+
           wc = (wchar_t) 0xBADFACE;
           ret = mbrtowc (&wc, input + 2, 3, &state);
           ASSERT (ret == 1);
@@ -192,6 +197,11 @@ main (int argc, char *argv[])
           ASSERT (mbsinit (&state));
           input[2] = '\0';
 
+          /* Test support of NULL first argument.  */
+          ret = mbrtowc (NULL, input + 3, 4, &state);
+          ASSERT (ret == 2);
+          ASSERT (mbsinit (&state));
+
           wc = (wchar_t) 0xBADFACE;
           ret = mbrtowc (&wc, input + 3, 4, &state);
           ASSERT (ret == 2);
@@ -250,6 +260,11 @@ main (int argc, char *argv[])
           ASSERT (mbsinit (&state));
           input[4] = '\0';
 
+          /* Test support of NULL first argument.  */
+          ret = mbrtowc (NULL, input + 5, 3, &state);
+          ASSERT (ret == 2);
+          ASSERT (mbsinit (&state));
+
           wc = (wchar_t) 0xBADFACE;
           ret = mbrtowc (&wc, input + 5, 3, &state);
           ASSERT (ret == 2);
@@ -293,6 +308,11 @@ main (int argc, char *argv[])
           ASSERT (mbsinit (&state));
           input[2] = '\0';
 
+          /* Test support of NULL first argument.  */
+          ret = mbrtowc (NULL, input + 3, 6, &state);
+          ASSERT (ret == 4);
+          ASSERT (mbsinit (&state));
+
           wc = (wchar_t) 0xBADFACE;
           ret = mbrtowc (&wc, input + 3, 6, &state);
           ASSERT (ret == 4);