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1 /* Simple implementation of vsprintf for systems without it.
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2 Highly system-dependent, but should work on most "traditional"
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3 implementations of stdio; newer ones should already have vsprintf.
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4 Written by Per Bothner of Cygnus Support.
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5 Based on libg++'s "form" (written by Doug Lea; dl@rocky.oswego.edu).
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6 Copyright (C) 1991, 1995, 2002 Free Software Foundation, Inc.
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7
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8 This file is part of the libiberty library. This library is free
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9 software; you can redistribute it and/or modify it under the
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10 terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 2, or (at your option)
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12 any later version.
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13
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14 This library is distributed in the hope that it will be useful,
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15 but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 GNU General Public License for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with GNU CC; see the file COPYING. If not, write to
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21 the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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22
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23 As a special exception, if you link this library with files
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24 compiled with a GNU compiler to produce an executable, this does not cause
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25 the resulting executable to be covered by the GNU General Public License.
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26 This exception does not however invalidate any other reasons why
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27 the executable file might be covered by the GNU General Public License. */
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28
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29 #include <ansidecl.h>
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30 #include <stdarg.h>
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31 #include <stdio.h>
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32 #undef vsprintf
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33
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34 #if defined _IOSTRG && defined _IOWRT
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35
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36 int
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37 vsprintf (char *buf, const char *format, va_list ap)
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38 {
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39 FILE b;
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40 int ret;
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41 #ifdef VMS
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42 b->_flag = _IOWRT|_IOSTRG;
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43 b->_ptr = buf;
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44 b->_cnt = 12000;
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45 #else
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46 b._flag = _IOWRT|_IOSTRG;
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47 b._ptr = buf;
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48 b._cnt = 12000;
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49 #endif
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50 ret = _doprnt(format, ap, &b);
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51 putc('\0', &b);
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52 return ret;
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53
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54 }
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55
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56 #endif
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