3c97056f54
* config/c_io_libio.cc (basic_file<char>::__basic_file): Don't pass a NULL _IO_wide_data to _IO_no_init when _GLIBCPP_USE_WCHAR_T is not defined. * config/c_io_libio.h (_IO_codecvt): Don't declare when _GLIBCPP_USE_WCHAR_T is not defined. * config/c_io_libio_codecvt.c: Don't compile it when _GLIBCPP_USE_WCHAR_T is not defined. * include/bits/codecvt.h (codecvt<_InternT, _ExternT, __enc_traits): Don't define this specialization when _GLIBCPP_USE_WCHAR_T is not defined. * include/bits/locale_facets.h (<bits/std_cwctype.h>): Don't include it when _GLIBCPP_USE_WCHAR_T is not defined. * src/codecvt.cc (__enc_traits::_S_max_size): Don't define when _GLIBCPP_USE_WCHAR_T is not defined. * src/localename.cc (locale::_Impl::_M_construct_collate): Don't call wide-character functions when _GLIBCPP_USE_WCHAR_T is not defined. (locale::_Impl::_M_construct_ctype): Likewise. (locale::_Impl::_M_construct_monetary): Likewise. (locale::_Impl::_M_construct_numeric): Likewise. (locale::_Impl::_M_construct_time): Likewise. (locale::_Impl::_M_construct_messages): Likewise. * iofopen.c (_IO_new_fopen): Don't define `_IO_wide_data wd' if _GLIBCPP_USE_WCHAR_T is not defined. * iofwide.c: Don't define codecvt functions when _GLIBCPP_USE_WCHAR_T is not defined. (_IO_fwide): Don't try to put the stream in wide mode when _GLIBCPP_USE_WCHAR_T is not defined. * libio.h (_IO_wide_data): Define it as an incomplete struct when _GLIBCPP_USE_WCHAR_T is not defined. * wfiledoalloc.c: Don't define anything when _GLIBCPP_USE_WCHAR_T is not defined. * wfileops.c: Likewise. * wgenops.c: Likewise. From-SVN: r37131
109 lines
3.4 KiB
C
109 lines
3.4 KiB
C
/* Copyright (C) 1993, 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU IO Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at
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your option) any later version.
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This library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this library; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, if you link this library with files
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compiled with a GNU compiler to produce an executable, this does
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not cause the resulting executable to be covered by the GNU General
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Public License. This exception does not however invalidate any
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other reasons why the executable file might be covered by the GNU
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General Public License. */
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/*
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
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* University may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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/* Modified for GNU iostream by Per Bothner 1991, 1992. */
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#ifndef _POSIX_SOURCE
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# define _POSIX_SOURCE
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#endif
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#include "libioP.h"
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#ifdef _GLIBCPP_USE_WCHAR_T
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef __STDC__
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#include <stdlib.h>
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#include <unistd.h>
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#endif
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#ifdef _LIBC
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# undef isatty
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# define isatty(Fd) __isatty (Fd)
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#endif
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/*
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* Allocate a file buffer, or switch to unbuffered I/O.
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* Per the ANSI C standard, ALL tty devices default to line buffered.
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*
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* As a side effect, we set __SOPT or __SNPT (en/dis-able fseek
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* optimisation) right after the _fstat() that finds the buffer size.
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*/
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int
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_IO_wfile_doallocate (fp)
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_IO_FILE *fp;
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{
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_IO_size_t size;
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int couldbetty;
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wchar_t *p;
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struct _G_stat64 st;
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/* Allocate room for the external buffer. */
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if (fp->_IO_buf_base == NULL)
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_IO_file_doallocate (fp);
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if (fp->_fileno < 0 || _IO_SYSSTAT (fp, &st) < 0)
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{
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couldbetty = 0;
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size = _IO_BUFSIZ;
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#if 0
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/* do not try to optimise fseek() */
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fp->_flags |= __SNPT;
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#endif
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}
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else
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{
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couldbetty = S_ISCHR (st.st_mode);
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#if _IO_HAVE_ST_BLKSIZE
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size = st.st_blksize <= 0 ? _IO_BUFSIZ : st.st_blksize;
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#else
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size = _IO_BUFSIZ;
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#endif
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}
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ALLOC_WBUF (p, size * sizeof (wchar_t), EOF);
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_IO_wsetb (fp, p, p + size, 1);
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if (couldbetty && isatty (fp->_fileno))
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fp->_flags |= _IO_LINE_BUF;
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return 1;
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}
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#endif /* _GLIBCPP_USE_WCHAR_T */
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