gnu/dist/texinfo/intl/vasnprintf.h

   1 /*      $NetBSD$        */
   2
   3 /* vsprintf with automatic memory allocation.
   4    Copyright (C) 2002-2003 Free Software Foundation, Inc.
   5
   6    This program is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU Library General Public License as published
   8    by the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Library General Public License for more details.
  15
  16    You should have received a copy of the GNU Library General Public
  17    License along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19    USA.  */
  20
  21 #ifndef _VASNPRINTF_H
  22 #define _VASNPRINTF_H
  23
  24 /* Get va_list.  */
  25 #include <stdarg.h>
  26
  27 /* Get size_t.  */
  28 #include <stddef.h>
  29
  30 #ifndef __attribute__
  31 /* This feature is available in gcc versions 2.5 and later.  */
  32 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  33 #  define __attribute__(Spec) /* empty */
  34 # endif
  35 /* The __-protected variants of `format' and `printf' attributes
  36    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  37 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  38 #  define __format__ format
  39 #  define __printf__ printf
  40 # endif
  41 #endif
  42
  43 #ifdef  __cplusplus
  44 extern "C" {
  45 #endif
  46
  47 /* Write formatted output to a string dynamically allocated with malloc().
  48    You can pass a preallocated buffer for the result in RESULTBUF and its
  49    size in *LENGTHP; otherwise you pass RESULTBUF = NULL.
  50    If successful, return the address of the string (this may be = RESULTBUF
  51    if no dynamic memory allocation was necessary) and set *LENGTHP to the
  52    number of resulting bytes, excluding the trailing NUL.  Upon error, set
  53    errno and return NULL.  */
  54 extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
  55        __attribute__ ((__format__ (__printf__, 3, 4)));
  56 extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args)
  57        __attribute__ ((__format__ (__printf__, 3, 0)));
  58
  59 #ifdef  __cplusplus
  60 }
  61 #endif
  62
  63 #endif /* _VASNPRINTF_H */