1 /* src/toolbox/util.c - contains some utility functions
3 Copyright (C) 1996-2005, 2006, 2008
4 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
6 This file is part of CACAO.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
35 #include "mm/memory.hpp"
39 /* get_variable_message_length *************************************************
41 This function simluates the print of a variable message and
42 determines so the message length;
44 *******************************************************************************/
46 int get_variable_message_length(const char *fmt, va_list ap)
50 n = vsnprintf(NULL, 0, fmt, ap);
53 /* We know that IRIX returns -1 if the buffer is NULL */
59 size = 100; /* start with 100-bytes */
64 /* Try to print in the allocated space. */
66 n = vsnprintf(p, size, fmt, ap);
68 /* If that worked, return the length. */
69 if (n > -1 && n < size)
72 /* Else try again with more space. */
73 size *= 2; /* twice the old size */
75 if ((np = MREALLOC(p, char, size, size)) == NULL) {
89 * These are local overrides for various environment variables in Emacs.
90 * Please do not remove this and leave it at the end of the file, where
91 * Emacs will automagically detect them.
92 * ---------------------------------------------------------------------