view lwlib/lw_win.c @ 500:733fd05ca2a8

Initialize temporary line structures properly Apparently, not initializing all elements of a struct can lead to random problems if something somewhere decides it should reference one of those uninitialized fields. Who knew. Set the temporary line_t structure to zeroes before passing it into anything when calculating the stuff for "object" output which should at least make things predictable. This seems to fix a crash reported by "strick" in Discord.
author William Astle <lost@l-w.ca>
date Thu, 29 Aug 2019 17:00:17 -0600
parents 4130ffdeb5c8
children 33e37b3d98cf
line wrap: on
line source

/*
lw_win.c

Copyright © 2015 William Astle

This file is part of LWTOOLS.

LWTOOLS is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.

You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
*/

#include "lw_win.h"

#include <stdio.h>
#include <stdarg.h>

int c99_vsnprintf(char* str, size_t size, const char* format, va_list ap)
{
	int count = -1;

	if (size != 0)
		count = _vsnprintf_s(str, size, _TRUNCATE, format, ap);
	if (count == -1)
		count = _vscprintf(format, ap);

	return count;
}

int c99_snprintf(char* str, size_t size, const char* format, ...)
{
	int count;
	va_list ap;

	va_start(ap, format);
	count = c99_vsnprintf(str, size, format, ap);
	va_end(ap);

	return count;
}