1 /* Test of vsnprintf() function.
2 Copyright (C) 2007-2008 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 3 of the License, or
7 (at your option) any later version.
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, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
27 #define ASSERT(expr) \
32 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
40 my_snprintf (char *buf, int size, const char *format, ...)
45 va_start (args, format);
46 ret = vsnprintf (buf, size, format, args);
52 main (int argc, char *argv[])
58 for (size = 0; size <= 8; size++)
60 memcpy (buf, "DEADBEEF", 8);
61 retval = my_snprintf (buf, size, "%d", 12345);
64 #if CHECK_VSNPRINTF_POSIX
65 ASSERT (retval < 0 || retval >= size);
69 ASSERT (memcmp (buf, "12345", size - 1) == 0);
70 ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
72 #if !CHECK_VSNPRINTF_POSIX
75 ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
80 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);