| /* Copyright (C) 1991 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 Library General Public License as |
| published by the Free Software Foundation; either version 2 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 |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public |
| License along with the GNU C Library; see the file COPYING.LIB. If |
| not, write to the Free Software Foundation, Inc., 675 Mass Ave, |
| Cambridge, MA 02139, USA. */ |
| |
| #include <ansidecl.h> |
| #include <errno.h> |
| #include <limits.h> |
| #include <printf.h> |
| |
| /* Array of functions indexed by format character. */ |
| static printf_function *printf_funcs[UCHAR_MAX + 1]; |
| printf_arginfo_function *__printf_arginfo_table[UCHAR_MAX + 1]; |
| |
| printf_function **__printf_function_table; |
| |
| /* Register FUNC to be called to format SPEC specifiers. */ |
| int |
| DEFUN(register_printf_function, (spec, converter, arginfo), |
| int spec AND printf_function converter AND |
| printf_arginfo_function arginfo) |
| { |
| if (spec < 0 || spec > (int) UCHAR_MAX) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| __printf_function_table = printf_funcs; |
| __printf_arginfo_table[spec] = arginfo; |
| printf_funcs[spec] = converter; |
| |
| return 0; |
| } |