mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-14 06:23:58 +08:00
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
154 lines
4.2 KiB
C
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 */
|