| /* Copyright (C) 1993, 1997, 1998 Free Software Foundation, Inc. |
| This file is part of the GNU IO Library. |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License as |
| published by the Free Software Foundation; either version 2, or (at |
| your option) any later version. |
| |
| This 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 |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this library; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, Boston, |
| MA 02111-1307, USA. |
| |
| As a special exception, if you link this library with files |
| compiled with a GNU compiler to produce an executable, this does |
| not cause the resulting executable to be covered by the GNU General |
| Public License. This exception does not however invalidate any |
| other reasons why the executable file might be covered by the GNU |
| General Public License. */ |
| |
| #include <libio.h> |
| #ifdef TODO |
| Merge into libio.h ? |
| #endif |
| |
| #ifndef __PMT |
| # ifdef __STDC__ |
| # define __PMT(p) p |
| # else |
| # define __PMT(p) () |
| # endif |
| #endif /*!__P*/ |
| |
| typedef void *(*_IO_alloc_type) __PMT ((_IO_size_t)); |
| typedef void (*_IO_free_type) __PMT ((void*)); |
| |
| struct _IO_str_fields |
| { |
| _IO_alloc_type _allocate_buffer; |
| _IO_free_type _free_buffer; |
| }; |
| |
| /* This is needed for the Irix6 N32 ABI, which has a 64 bit off_t type, |
| but a 32 bit pointer type. In this case, we get 4 bytes of padding |
| after the vtable pointer. Putting them in a structure together solves |
| this problem. */ |
| |
| struct _IO_streambuf |
| { |
| struct _IO_FILE _f; |
| const void *_vtable; |
| }; |
| |
| typedef struct _IO_strfile_ |
| { |
| struct _IO_streambuf _sbf; |
| struct _IO_str_fields _s; |
| } _IO_strfile; |
| |
| /* dynamic: set when the array object is allocated (or reallocated) as |
| necessary to hold a character sequence that can change in length. */ |
| #define _IO_STR_DYNAMIC(FP) ((FP)->_s._allocate_buffer != (_IO_alloc_type)0) |
| |
| /* frozen: set when the program has requested that the array object not |
| be altered, reallocated, or freed. */ |
| #define _IO_STR_FROZEN(FP) ((FP)->_f._IO_file_flags & _IO_USER_BUF) |