asprintf.c

来自「绝对正真的stdio.h的实现」· C语言 代码 · 共 44 行

/* Copyright (C) 1991, 1995, 1997, 1998, 2002, 2004
   Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <stdarg.h>
#include <stdio.h>

#include <libio/libioP.h>
#define vasprintf(s, f, a) _IO_vasprintf (s, f, a)
#undef __asprintf

/* Write formatted output from FORMAT to a string which is
   allocated with malloc and stored in *STRING_PTR.  */
/* VARARGS2 */
int
__asprintf (char **string_ptr, const char *format, ...)
{
  va_list arg;
  int done;

  va_start (arg, format);
  done = vasprintf (string_ptr, format, arg);
  va_end (arg);

  return done;
}
INTDEF(__asprintf)
weak_alias (__asprintf, asprintf)