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
8Copyright 2001, 2018 Free Software Foundation, Inc.
9
10This file is part of the GNU MP Library.
11
12The GNU MP Library is free software; you can redistribute it and/or modify
13it 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
19or
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
25or both in parallel, as here.
26
27The GNU MP Library is distributed in the hope that it will be useful, but
28WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
29or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
30for more details.
31
32You should have received copies of the GNU General Public License and the
33GNU Lesser General Public License along with the GNU MP Library.  If not,
34see 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
50static int
51gmp_obstack_memory (struct obstack *ob, const char *ptr, size_t len)
52{
53  obstack_grow (ob, ptr, len);
54  return len;
55}
56
57static int
58gmp_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
65const 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
72typedef int __gmp_dummy_typedef;
73#endif /* HAVE_OBSTACK_VPRINTF */
74