1  /* __gmp_obstack_printf_funs -- support for gmp_obstack_printf and
       2     gmp_obstack_vprintf.
       3  
       4     THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY.  THEY'RE ALMOST
       5     CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
       6     FUTURE GNU MP RELEASES.
       7  
       8  Copyright 2001, 2018 Free Software Foundation, Inc.
       9  
      10  This file is part of the GNU MP Library.
      11  
      12  The GNU MP Library is free software; you can redistribute it and/or modify
      13  it under the terms of either:
      14  
      15    * the GNU Lesser General Public License as published by the Free
      16      Software Foundation; either version 3 of the License, or (at your
      17      option) any later version.
      18  
      19  or
      20  
      21    * the GNU General Public License as published by the Free Software
      22      Foundation; either version 2 of the License, or (at your option) any
      23      later version.
      24  
      25  or both in parallel, as here.
      26  
      27  The GNU MP Library is distributed in the hope that it will be useful, but
      28  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
      29  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      30  for more details.
      31  
      32  You should have received copies of the GNU General Public License and the
      33  GNU Lesser General Public License along with the GNU MP Library.  If not,
      34  see https://www.gnu.org/licenses/.  */
      35  
      36  #include "config.h"
      37  
      38  #if HAVE_OBSTACK_VPRINTF
      39  
      40  #define _GNU_SOURCE   /* ask glibc <stdio.h> for obstack_vprintf */
      41  
      42  #include <stdarg.h>
      43  #include <stdio.h>    /* for obstack_vprintf */
      44  #include <string.h>
      45  #include <obstack.h>
      46  
      47  #include "gmp-impl.h"
      48  
      49  
      50  static int
      51  gmp_obstack_memory (struct obstack *ob, const char *ptr, size_t len)
      52  {
      53    obstack_grow (ob, ptr, len);
      54    return len;
      55  }
      56  
      57  static int
      58  gmp_obstack_reps (struct obstack *ob, int c, int reps)
      59  {
      60    obstack_blank (ob, reps);
      61    memset ((char *) obstack_next_free(ob) - reps, c, reps);
      62    return reps;
      63  }
      64  
      65  const struct doprnt_funs_t  __gmp_obstack_printf_funs = {
      66    (doprnt_format_t) obstack_vprintf,
      67    (doprnt_memory_t) gmp_obstack_memory,
      68    (doprnt_reps_t)   gmp_obstack_reps
      69  };
      70  
      71  #else
      72  typedef int __gmp_dummy_typedef;
      73  #endif /* HAVE_OBSTACK_VPRINTF */