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annotate lwlib/lw_win.c @ 547:33e37b3d98cf

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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
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1 /*
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2 lw_win.c
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3
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4 Copyright © 2015 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #if defined(_MSC_VER) && _MSC_VER < 1900
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23
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24 #include "lw_win.h"
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25
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26 #include <stdio.h>
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27 #include <stdarg.h>
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28
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29 int c99_vsnprintf(char* str, size_t size, const char* format, va_list ap)
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30 {
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31 int count = -1;
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32
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33 if (size != 0)
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34 count = _vsnprintf_s(str, size, _TRUNCATE, format, ap);
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35 if (count == -1)
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36 count = _vscprintf(format, ap);
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37
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38 return count;
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39 }
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40
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41 int c99_snprintf(char* str, size_t size, const char* format, ...)
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42 {
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43 int count;
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44 va_list ap;
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45
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46 va_start(ap, format);
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47 count = c99_vsnprintf(str, size, format, ap);
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48 va_end(ap);
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49
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50 return count;
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51 }
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52
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53 #endif // _MSC_VER < 1900