Handle invalid buffer pointers when count is zero.
[glibc/history.git] / wcsmbs / tst-wcpncpy.c
blob76d5fd3fd73eb1585e13758faadef29f3b8e4ee8
1 /* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 2003.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <stdio.h>
21 #include <wchar.h>
24 int
25 main (void)
27 int result = 0;
29 const wchar_t src[] = L"0";
30 wchar_t dest[21];
31 wmemset (dest, L'\0', 10);
32 wchar_t *endp = wcpncpy (dest, src, 2);
33 if (wcscmp (dest, src) != 0)
35 result = 1;
36 puts ("L\"0\" string test failed");
38 if (endp != dest + 1)
40 result = 1;
41 puts ("return value of L\"0\" string call incorrect");
44 const wchar_t src2[] = L"abc";
45 endp = wcpncpy (dest, src2, 2);
46 if (endp != dest + 2)
48 result = 1;
49 puts ("return value of limited call incorrect");
52 const wchar_t src3[] = L"";
53 endp = wcpncpy (dest, src3, 2);
54 if (endp != dest)
56 result = 1;
57 puts ("return value of empty string call incorrect");
60 const wchar_t src4[] = L"abcdefghijklmnopqrstuvwxyz";
61 endp = wcpncpy (dest, src4, 2);
62 if (endp != dest + 2)
64 result = 1;
65 puts ("return value of long string call incorrect");
68 const wchar_t src5[] = L"ab";
69 endp = wcpncpy (dest, src5, 20);
70 if (endp != dest + 2)
72 result = 1;
73 puts ("return value of large limit call incorrect");
76 return result;