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28f540f4 RM |
1 | /* Copyright (C) 1991 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If | |
16 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
17 | Cambridge, MA 02139, USA. */ | |
18 | ||
19 | #include <ansidecl.h> | |
20 | #include <errno.h> | |
21 | #include <limits.h> | |
22 | #include <printf.h> | |
23 | ||
24 | /* Array of functions indexed by format character. */ | |
25 | static printf_function *printf_funcs[UCHAR_MAX + 1]; | |
26 | printf_arginfo_function *__printf_arginfo_table[UCHAR_MAX + 1]; | |
27 | ||
28 | printf_function **__printf_function_table; | |
29 | ||
30 | /* Register FUNC to be called to format SPEC specifiers. */ | |
31 | int | |
32 | DEFUN(register_printf_function, (spec, converter, arginfo), | |
33 | int spec AND printf_function converter AND | |
34 | printf_arginfo_function arginfo) | |
35 | { | |
36 | if (spec < 0 || spec > (int) UCHAR_MAX) | |
37 | { | |
38 | errno = EINVAL; | |
39 | return -1; | |
40 | } | |
41 | ||
42 | __printf_function_table = printf_funcs; | |
43 | __printf_arginfo_table[spec] = arginfo; | |
44 | printf_funcs[spec] = converter; | |
45 | ||
46 | return 0; | |
47 | } |