1 /* Test of vsnprintf() function.
2 Copyright (C) 2007 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
30 #define ASSERT(expr) \
35 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
42 my_snprintf (char *buf, int size, const char *format, ...)
47 va_start (args, format);
48 ret = vsnprintf (buf, size, format, args);
54 main (int argc, char *argv[])
60 for (size = 0; size <= 8; size++)
62 memcpy (buf, "DEADBEEF", 8);
63 retval = my_snprintf (buf, size, "%d", 12345);
66 #if CHECK_VSNPRINTF_POSIX
67 ASSERT (retval < 0 || retval >= size);
71 ASSERT (memcmp (buf, "12345", size - 1) == 0);
72 ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
74 #if !CHECK_VSNPRINTF_POSIX
77 ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
82 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);