view lwlib/lw_win.c @ 547:33e37b3d98cf

Don't build snprintf() emulation on modern enough MSVC MSVC 2015 and later have a C99 compliant snprintf() so don't build the emulation function for it if building on a modern enough version.
author William Astle <lost@l-w.ca>
date Thu, 16 Mar 2023 16:18:13 -0600
parents 4130ffdeb5c8
children
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/*
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/>.
*/

#if defined(_MSC_VER) && _MSC_VER < 1900

#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;
}

#endif // _MSC_VER < 1900