Update.
[glibc.git] / stdio-common / reg-printf.c
blob1edea33554ea124b72ad326c1bca7136851e45f8
1 /* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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 not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
19 #include <errno.h>
20 #include <limits.h>
21 #include <printf.h>
23 /* Array of functions indexed by format character. */
24 static printf_function *printf_funcs[UCHAR_MAX + 1];
25 printf_arginfo_function *__printf_arginfo_table[UCHAR_MAX + 1];
27 printf_function **__printf_function_table;
29 int __register_printf_function __P ((int, printf_function,
30 printf_arginfo_function));
32 /* Register FUNC to be called to format SPEC specifiers. */
33 int
34 __register_printf_function (spec, converter, arginfo)
35 int spec;
36 printf_function converter;
37 printf_arginfo_function arginfo;
39 if (spec < 0 || spec > (int) UCHAR_MAX)
41 __set_errno (EINVAL);
42 return -1;
45 __printf_function_table = printf_funcs;
46 __printf_arginfo_table[spec] = arginfo;
47 printf_funcs[spec] = converter;
49 return 0;
51 weak_alias (__register_printf_function, register_printf_function)