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) if (!(expr)) abort ();
33 my_snprintf (char *buf, int size, const char *format, ...)
38 va_start (args, format);
39 ret = vsnprintf (buf, size, format, args);
45 main (int argc, char *argv[])
51 for (size = 0; size <= 8; size++)
53 memcpy (buf, "DEADBEEF", 8);
54 retval = my_snprintf (buf, size, "%d", 12345);
57 ASSERT (retval < 0 || retval >= size);
60 ASSERT (memcmp (buf, "12345", size - 1) == 0);
61 ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
63 ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
68 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);