gcc/libstdc++-v3/config/c_io_libio_codecvt.c
Mark Mitchell 3c97056f54 c_io_libio.cc (basic_file<char>::__basic_file): Don't pass a NULL _IO_wide_data to _IO_no_init when...
* 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
2000-10-29 21:52:54 +00:00

154 lines
4.2 KiB
C

/* Copyright (C) 2000 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. */
/* Slightly modified from glibc/libio/iofwide.c */
#include <libio.h>
#ifdef _GLIBCPP_USE_WCHAR_T
/* Prototypes of libio's codecvt functions. */
static enum __codecvt_result
do_out(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const wchar_t *from_start, const wchar_t *from_end,
const wchar_t **from_stop, char *to_start, char *to_end,
char **to_stop);
static enum __codecvt_result
do_unshift(struct _IO_codecvt *codecvt, __c_mbstate_t *statep, char *to_start,
char *to_end, char **to_stop);
static enum __codecvt_result
do_in(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const char *from_start, const char *from_end, const char **from_stop,
wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop);
static int
do_encoding(struct _IO_codecvt *codecvt);
static int
do_length(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const char *from_start, const char *from_end, _IO_size_t max);
static int
do_max_length(struct _IO_codecvt *codecvt);
static int
do_always_noconv(struct _IO_codecvt *codecvt);
/* The functions used in `codecvt' for libio are always the same. */
struct _IO_codecvt __c_libio_codecvt =
{
.__codecvt_destr = NULL, /* Destructor, never used. */
.__codecvt_do_out = do_out,
.__codecvt_do_unshift = do_unshift,
.__codecvt_do_in = do_in,
.__codecvt_do_encoding = do_encoding,
.__codecvt_do_always_noconv = do_always_noconv,
.__codecvt_do_length = do_length,
.__codecvt_do_max_length = do_max_length
};
static enum __codecvt_result
do_out(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const wchar_t *from_start, const wchar_t *from_end,
const wchar_t **from_stop, char *to_start, char *to_end,
char **to_stop)
{
enum __codecvt_result res = __codecvt_ok;
while (from_start < from_end)
{
if (to_start >= to_end)
{
res = __codecvt_partial;
break;
}
*to_start++ = (char) *from_start++;
}
*from_stop = from_start;
*to_stop = to_start;
return res;
}
static enum __codecvt_result
do_unshift(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
char *to_start, char *to_end, char **to_stop)
{
*to_stop = to_start;
return __codecvt_ok;
}
static enum __codecvt_result
do_in(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const char *from_start, const char *from_end, const char **from_stop,
wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop)
{
enum __codecvt_result res = __codecvt_ok;
while (from_start < from_end)
{
if (to_start >= to_end)
{
res = __codecvt_partial;
break;
}
*to_start++ = (wchar_t) *from_start++;
}
*from_stop = from_start;
*to_stop = to_start;
return res;
}
static int
do_encoding(struct _IO_codecvt *codecvt)
{ return 1; }
static int
do_always_noconv(struct _IO_codecvt *codecvt)
{ return 0; }
static int
do_length(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const char *from_start, const char *from_end, _IO_size_t max)
{ return from_end - from_start; }
static int
do_max_length(struct _IO_codecvt *codecvt)
{ return 1; }
#endif /* _GLIBCPP_USE_WCHAR_T */