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/* Copyright (C) 2010-2020 The RetroArch team
*
* ---------------------------------------------------------------------------------------
* The following license statement only applies to this file (compat_snprintf.c).
* ---------------------------------------------------------------------------------------
*
* Permission is hereby granted, free of charge,
* to any person obtaining a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/* THIS FILE HAS NOT BEEN VALIDATED ON PLATFORMS BESIDES MSVC */
#ifdef _MSC_VER
#include <stdio.h>
#include <stdarg.h>
#if _MSC_VER < 1800
#define va_copy(dst, src) ((dst) = (src))
#endif
#if _MSC_VER < 1300
#define _vscprintf c89_vscprintf_retro__
static int c89_vscprintf_retro__(const char *fmt, va_list pargs)
{
int retval;
va_list argcopy;
va_copy(argcopy, pargs);
retval = vsnprintf(NULL, 0, fmt, argcopy);
va_end(argcopy);
return retval;
}
#endif
/* http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010 */
int c99_vsnprintf_retro__(char *s, size_t len, const char *fmt, va_list ap)
{
int count = -1;
if (len != 0)
{
#if (_MSC_VER <= 1310)
count = _vsnprintf(s, len - 1, fmt, ap);
#else
count = _vsnprintf_s(s, len, len - 1, fmt, ap);
#endif
}
if (count == -1)
count = _vscprintf(fmt, ap);
/* there was no room for a NULL, so truncate the last character */
if (count == len && len)
s[len - 1] = '\0';
return count;
}
int c99_snprintf_retro__(char *s, size_t len, const char *fmt, ...)
{
int count;
va_list ap;
va_start(ap, fmt);
count = c99_vsnprintf_retro__(s, len, fmt, ap);
va_end(ap);
return count;
}
#endif
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