1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/* Copyright (C) 1991,1996,1997,2002,2003,2004 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 <errno.h>
#include <limits.h>
#include <printf.h>
#include <stddef.h>
#include <stdlib.h>
/* Array of functions indexed by format character. */
libc_freeres_ptr (printf_arginfo_function **__printf_arginfo_table)
attribute_hidden;
printf_function **__printf_function_table attribute_hidden;
int __register_printf_function (int, printf_function,
printf_arginfo_function) __THROW;
/* Register FUNC to be called to format SPEC specifiers. */
int
__register_printf_function (spec, converter, arginfo)
int spec;
printf_function converter;
printf_arginfo_function arginfo;
{
if (spec < 0 || spec > (int) UCHAR_MAX)
{
__set_errno (EINVAL);
return -1;
}
if (__printf_function_table == NULL)
{
__printf_arginfo_table = (printf_arginfo_function **)
calloc (UCHAR_MAX + 1, sizeof (void *) * 2);
if (__printf_arginfo_table == NULL)
return -1;
__printf_function_table = (printf_function **)
(__printf_arginfo_table + UCHAR_MAX + 1);
}
__printf_function_table[spec] = converter;
__printf_arginfo_table[spec] = arginfo;
return 0;
}
weak_alias (__register_printf_function, register_printf_function)
|
