1 /* Copyright (C) 2010-2020 The RetroArch team
3 * ---------------------------------------------------------------------------------------
4 * The following license statement only applies to this file (compat_snprintf.c).
5 * ---------------------------------------------------------------------------------------
7 * Permission is hereby granted, free of charge,
8 * to any person obtaining a copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation the rights to
10 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
11 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
16 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
19 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 /* THIS FILE HAS NOT BEEN VALIDATED ON PLATFORMS BESIDES MSVC */
30 #define va_copy(dst, src) ((dst) = (src))
34 #define _vscprintf c89_vscprintf_retro__
36 static int c89_vscprintf_retro__(const char *fmt, va_list pargs)
40 va_copy(argcopy, pargs);
41 retval = vsnprintf(NULL, 0, fmt, argcopy);
47 /* http://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010 */
49 int c99_vsnprintf_retro__(char *s, size_t len, const char *fmt, va_list ap)
55 #if (_MSC_VER <= 1310)
56 count = _vsnprintf(s, len - 1, fmt, ap);
58 count = _vsnprintf_s(s, len, len - 1, fmt, ap);
63 count = _vscprintf(fmt, ap);
65 /* there was no room for a NULL, so truncate the last character */
66 if (count == len && len)
72 int c99_snprintf_retro__(char *s, size_t len, const char *fmt, ...)
78 count = c99_vsnprintf_retro__(s, len, fmt, ap);