annotate libiberty/xvasprintf.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 1830386684a0
children
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1 /* Implement the xvasprintf function.
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1830386684a0 gcc-9.2.0
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2 Copyright (C) 2014-2020 Free Software Foundation, Inc.
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3 Contributed by Manuel Lopez-Ibanez.
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4
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5 This file is part of the libiberty library.
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6 Libiberty is free software; you can redistribute it and/or
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7 modify it under the terms of the GNU Library General Public
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8 License as published by the Free Software Foundation; either
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9 version 2 of the License, or (at your option) any later version.
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10
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11 Libiberty is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 Library General Public License for more details.
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15
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16 You should have received a copy of the GNU Library General Public
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17 License along with libiberty; see the file COPYING.LIB. If not, write
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18 to the Free Software Foundation, Inc., 51 Franklin Street - Fifth
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19 Floor, Boston, MA 02110-1301, USA. */
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20
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21 #ifdef HAVE_CONFIG_H
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22 #include "config.h"
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23 #endif
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24 #include <ansidecl.h>
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25 #include <stdarg.h>
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26 #if !defined (va_copy) && defined (__va_copy)
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27 # define va_copy(d,s) __va_copy((d),(s))
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28 #endif
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29 #include <stdio.h>
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30 #ifdef HAVE_STRING_H
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31 #include <string.h>
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32 #endif
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33 #include "libiberty.h"
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34 #include "vprintf-support.h"
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35
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36 /*
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37
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38 @deftypefn Replacement char* xvasprintf (const char *@var{format}, va_list @var{args})
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39
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40 Print to allocated string without fail. If @code{xvasprintf} fails,
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41 this will print a message to @code{stderr} (using the name set by
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42 @code{xmalloc_set_program_name}, if any) and then call @code{xexit}.
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43
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44 @end deftypefn
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45
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46 */
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47
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48 char *
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49 xvasprintf (const char *format,
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50 #if defined (_BSD_VA_LIST_) && defined (__FreeBSD__)
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51 _BSD_VA_LIST_ args)
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52 #else
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53 va_list args)
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54 #endif
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55 {
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56 char *result;
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57 int total_width = libiberty_vprintf_buffer_size (format, args);
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58 result = (char *) xmalloc (total_width);
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59 vsprintf (result, format, args);
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60 return result;
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61 }