1.1 --- a/epoc32/include/stdapis/stlport/stl/_fstream.h Tue Mar 16 16:12:26 2010 +0000
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,767 +0,0 @@
1.4 -/*
1.5 - * © Portions copyright (c) 2006-2007 Nokia Corporation. All rights reserved.
1.6 - *
1.7 - * Copyright (c) 1999
1.8 - * Silicon Graphics Computer Systems, Inc.
1.9 - *
1.10 - * Copyright (c) 1999
1.11 - * Boris Fomitchev
1.12 - *
1.13 - * This material is provided "as is", with absolutely no warranty expressed
1.14 - * or implied. Any use is at your own risk.
1.15 - *
1.16 - * Permission to use or copy this software for any purpose is hereby granted
1.17 - * without fee, provided the above notices are retained on all copies.
1.18 - * Permission to modify the code and to distribute modified code is granted,
1.19 - * provided the above notices are retained, and a notice that the code was
1.20 - * modified is included with the above copyright notice.
1.21 - *
1.22 - */
1.23 -// This header defines classes basic_filebuf, basic_ifstream,
1.24 -// basic_ofstream, and basic_fstream. These classes represent
1.25 -// streambufs and streams whose sources or destinations are files.
1.26 -
1.27 -#ifndef _STLP_INTERNAL_FSTREAM_H
1.28 -#define _STLP_INTERNAL_FSTREAM_H
1.29 -
1.30 -#if defined(__sgi) && !defined(__GNUC__) && !defined(_STANDARD_C_PLUS_PLUS)
1.31 -#error This header file requires the -LANG:std option
1.32 -#endif
1.33 -
1.34 -#ifndef _STLP_INTERNAL_STREAMBUF
1.35 -# include <stl/_streambuf.h>
1.36 -#endif
1.37 -
1.38 -#ifndef _STLP_INTERNAL_ISTREAM_H
1.39 -#include <stl/_istream.h>
1.40 -#endif
1.41 -
1.42 -#ifndef _STLP_INTERNAL_CODECVT_H
1.43 -#include <stl/_codecvt.h>
1.44 -#endif
1.45 -
1.46 -#ifndef _STLP_STDIO_FILE_H
1.47 -#include <stl/_stdio_file.h>
1.48 -#endif
1.49 -
1.50 -// fbp : let us map 1 MB maximum, just be sure not to trash VM
1.51 -//for hardware defining 8kb of mmap chunk
1.52 -# ifdef __SYMBIAN32__
1.53 -# define MMAP_CHUNK 0x2000UL
1.54 -# else
1.55 -# define MMAP_CHUNK 0x100000UL
1.56 -# endif
1.57 -
1.58 -#if !defined (_STLP_USE_UNIX_IO) && !defined(_STLP_USE_WIN32_IO) \
1.59 - && ! defined (_STLP_USE_UNIX_EMULATION_IO) && !defined (_STLP_USE_STDIO_IO)
1.60 -
1.61 -# if defined (_STLP_UNIX) || defined (__CYGWIN__) || defined (__amigaos__) || defined (__EMX__) || defined (__SYMBIAN32__)
1.62 -// open/close/read/write
1.63 -# define _STLP_USE_UNIX_IO
1.64 -# elif defined (_STLP_WIN32) && ! defined (__CYGWIN__)
1.65 -// CreateFile/ReadFile/WriteFile
1.66 -# define _STLP_USE_WIN32_IO
1.67 -# elif defined (_STLP_WIN16) || defined (_STLP_WIN32) || defined (_STLP_MAC)
1.68 -// _open/_read/_write
1.69 -# define _STLP_USE_UNIX_EMULATION_IO
1.70 -# else
1.71 -// fopen/fread/fwrite
1.72 -# define _STLP_USE_STDIO_IO
1.73 -# endif /* _STLP_UNIX */
1.74 -
1.75 -#endif /* mode selection */
1.76 -
1.77 -
1.78 -#if defined (_STLP_USE_WIN32_IO)
1.79 -typedef void* _STLP_fd;
1.80 -#elif defined (_STLP_USE_UNIX_EMULATION_IO) || defined (_STLP_USE_STDIO_IO) || defined (_STLP_USE_UNIX_IO)
1.81 -typedef int _STLP_fd;
1.82 -#else
1.83 -#error "Configure i/o !"
1.84 -#endif
1.85 -
1.86 -
1.87 -_STLP_BEGIN_NAMESPACE
1.88 -
1.89 -#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
1.90 -_STLP_DECLSPEC size_t& get_fstream_Filebuf_Base_GetPageSize();
1.91 -#endif //__LIBSTD_CPP_SYMBIAN32_WSD__
1.92 -//----------------------------------------------------------------------
1.93 -// Class _Filebuf_base, a private base class to factor out the system-
1.94 -// dependent code from basic_filebuf<>.
1.95 -
1.96 -class _STLP_CLASS_DECLSPEC _Filebuf_base {
1.97 -public: // Opening and closing files.
1.98 - _STLP_DECLSPEC _Filebuf_base();
1.99 -
1.100 - _STLP_DECLSPEC bool _M_open(const char*, ios_base::openmode, long __protection);
1.101 - _STLP_DECLSPEC bool _M_open(const char*, ios_base::openmode);
1.102 - _STLP_DECLSPEC bool _M_open(int __id, ios_base::openmode = ios_base::__default_mode);
1.103 - _STLP_DECLSPEC bool _M_close();
1.104 -
1.105 -public: // Low-level I/O, like Unix read/write
1.106 - _STLP_DECLSPEC ptrdiff_t _M_read(char* __buf, ptrdiff_t __n);
1.107 - _STLP_DECLSPEC streamoff _M_seek(streamoff __offset, ios_base::seekdir __dir);
1.108 - _STLP_DECLSPEC streamoff _M_file_size();
1.109 - _STLP_DECLSPEC bool _M_write(char* __buf, ptrdiff_t __n);
1.110 -
1.111 -public: // Memory-mapped I/O.
1.112 - _STLP_DECLSPEC void* _M_mmap(streamoff __offset, streamoff __len);
1.113 - _STLP_DECLSPEC void _M_unmap(void* __mmap_base, streamoff __len);
1.114 -
1.115 -public:
1.116 - // Returns a value n such that, if pos is the file pointer at the
1.117 - // beginning of the range [first, last), pos + n is the file pointer at
1.118 - // the end. On many operating systems n == __last - __first.
1.119 - // In Unix, writing n characters always bumps the file position by n.
1.120 - // In Windows text mode, however, it bumps the file position by n + m,
1.121 - // where m is the number of newlines in the range. That's because an
1.122 - // internal \n corresponds to an external two-character sequence.
1.123 - streamoff _M_get_offset(char* __first, char* __last) {
1.124 -#if defined (_STLP_UNIX) || defined (_STLP_MAC)
1.125 - return __last - __first;
1.126 -#else // defined (_STLP_WIN32) || defined (_STLP_WIN16) || defined (_STLP_DOS)
1.127 - return ( (_M_openmode & ios_base::binary) != 0 )
1.128 - ? (__last - __first)
1.129 - : count(__first, __last, '\n') + (__last - __first);
1.130 -#endif
1.131 - }
1.132 -
1.133 - // Returns true if we're in binary mode or if we're using an OS or file
1.134 - // system where there is no distinction between text and binary mode.
1.135 - bool _M_in_binary_mode() const {
1.136 -# if defined (_STLP_UNIX) || defined (_STLP_MAC) || defined(__BEOS__) || defined (__amigaos__) || defined (_STLP_VXWORKS_TORNADO)
1.137 - return true;
1.138 -# elif defined (_STLP_WIN32) || defined (_STLP_WIN16) || defined (_STLP_DOS) || defined (_STLP_VM) || defined (__EMX__)
1.139 - return (_M_openmode & ios_base::binary) != 0;
1.140 -# else
1.141 -//# error "Port!"
1.142 -#pragma message(" Symbian I/O stream support on progress."__FILE__)
1.143 -# endif
1.144 - }
1.145 -
1.146 -protected: // Static data members.
1.147 -# if !defined(__LIBSTD_CPP_SYMBIAN32_WSD__) && !defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
1.148 - static size_t _M_page_size;
1.149 -#endif //__SYMBIAN32__
1.150 -
1.151 -protected: // Data members.
1.152 - _STLP_fd _M_file_id;
1.153 -# ifdef _STLP_USE_STDIO_IO
1.154 - // for stdio, the whole FILE* is being kept here
1.155 - FILE* _M_file;
1.156 -# endif
1.157 -# ifdef _STLP_USE_WIN32_IO
1.158 - void* _M_view_id;
1.159 -# endif
1.160 -
1.161 - ios_base::openmode _M_openmode ;
1.162 - unsigned char _M_is_open ;
1.163 - unsigned char _M_should_close ;
1.164 - unsigned char _M_regular_file ;
1.165 -
1.166 -public :
1.167 -#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
1.168 - static size_t _STLP_CALL __page_size() { return get_fstream_Filebuf_Base_GetPageSize(); }
1.169 -#else
1.170 - static size_t _STLP_CALL __page_size() { return _M_page_size; }
1.171 -#endif
1.172 - int __o_mode() const { return (int)_M_openmode; }
1.173 - bool __is_open() const { return (_M_is_open !=0 ); }
1.174 - bool __should_close() const { return (_M_should_close != 0); }
1.175 - bool __regular_file() const { return (_M_regular_file != 0); }
1.176 - _STLP_fd __get_fd() const { return _M_file_id; }
1.177 -};
1.178 -
1.179 -
1.180 -
1.181 -
1.182 -//----------------------------------------------------------------------
1.183 -// Class basic_filebuf<>.
1.184 -
1.185 -// Forward declaration of two helper classes.
1.186 -template <class _Traits> class _Noconv_input;
1.187 -_STLP_TEMPLATE_NULL
1.188 -class _Noconv_input<char_traits<char> >;
1.189 -
1.190 -template <class _Traits> class _Noconv_output;
1.191 -_STLP_TEMPLATE_NULL
1.192 -class _Noconv_output< char_traits<char> >;
1.193 -
1.194 -// There is a specialized version of underflow, for basic_filebuf<char>,
1.195 -// in fstream.cxx.
1.196 -
1.197 -template <class _CharT, class _Traits>
1.198 -class _Underflow;
1.199 -
1.200 - _STLP_TEMPLATE_NULL class _Underflow< char, char_traits<char> >;
1.201 -
1.202 -template <class _CharT, class _Traits>
1.203 -class basic_filebuf : public basic_streambuf<_CharT, _Traits>
1.204 -{
1.205 -public: // Types.
1.206 - typedef _CharT char_type;
1.207 - typedef typename _Traits::int_type int_type;
1.208 - typedef typename _Traits::pos_type pos_type;
1.209 - typedef typename _Traits::off_type off_type;
1.210 - typedef _Traits traits_type;
1.211 -
1.212 - typedef typename _Traits::state_type _State_type;
1.213 - typedef basic_streambuf<_CharT, _Traits> _Base;
1.214 - typedef basic_filebuf<_CharT, _Traits> _Self;
1.215 -
1.216 -public: // Constructors, destructor.
1.217 - basic_filebuf();
1.218 - ~basic_filebuf();
1.219 -
1.220 -public: // Opening and closing files.
1.221 - bool is_open() const { return _M_base.__is_open(); }
1.222 -
1.223 - _Self* open(const char* __s, ios_base::openmode __m) {
1.224 - return _M_base._M_open(__s, __m) ? this : 0;
1.225 - }
1.226 -
1.227 -# ifndef _STLP_NO_EXTENSIONS
1.228 - // These two version of open() and file descriptor getter are extensions.
1.229 - _Self* open(const char* __s, ios_base::openmode __m,
1.230 - long __protection) {
1.231 - return _M_base._M_open(__s, __m, __protection) ? this : 0;
1.232 - }
1.233 -
1.234 - _STLP_fd fd() const { return _M_base.__get_fd(); }
1.235 -
1.236 - _Self* open(int __id, ios_base::openmode _Init_mode = ios_base::__default_mode) {
1.237 - return this->_M_open(__id, _Init_mode);
1.238 - }
1.239 -# endif
1.240 -
1.241 - _Self* _M_open(int __id, ios_base::openmode _Init_mode = ios_base::__default_mode) {
1.242 - return _M_base._M_open(__id, _Init_mode) ? this : 0;
1.243 - }
1.244 -
1.245 - _Self* close();
1.246 -
1.247 -protected: // Virtual functions from basic_streambuf.
1.248 - virtual streamsize showmanyc();
1.249 - virtual int_type underflow();
1.250 -
1.251 - virtual int_type pbackfail(int_type = traits_type::eof());
1.252 - virtual int_type overflow(int_type = traits_type::eof());
1.253 -
1.254 - virtual basic_streambuf<_CharT, _Traits>* setbuf(char_type*, streamsize);
1.255 - virtual pos_type seekoff(off_type, ios_base::seekdir,
1.256 - ios_base::openmode = ios_base::in | ios_base::out);
1.257 - virtual pos_type seekpos(pos_type,
1.258 - ios_base::openmode = ios_base::in | ios_base::out);
1.259 -
1.260 - virtual int sync();
1.261 - virtual void imbue(const locale&);
1.262 -
1.263 -#ifdef __SYMBIAN32__
1.264 - virtual int save_read_buffer ();
1.265 - virtual void _change_input_mode();
1.266 -#endif
1.267 -
1.268 -private: // Helper functions.
1.269 -
1.270 - // Precondition: we are currently in putback input mode. Effect:
1.271 - // switches back to ordinary input mode.
1.272 - void _M_exit_putback_mode() {
1.273 - this->setg(_M_saved_eback, _M_saved_gptr, _M_saved_egptr);
1.274 - _M_in_putback_mode = false;
1.275 - }
1.276 - bool _M_switch_to_input_mode();
1.277 - void _M_exit_input_mode();
1.278 - bool _M_switch_to_output_mode();
1.279 -
1.280 - int_type _M_input_error();
1.281 - int_type _M_underflow_aux();
1.282 - // friend class _Noconv_input<_Traits>;
1.283 - // friend class _Noconv_output<_Traits>;
1.284 - friend class _Underflow<_CharT, _Traits>;
1.285 -
1.286 - int_type _M_output_error();
1.287 - bool _M_unshift();
1.288 -
1.289 - bool _M_allocate_buffers(_CharT* __buf, streamsize __n);
1.290 - bool _M_allocate_buffers();
1.291 - void _M_deallocate_buffers();
1.292 -
1.293 - pos_type _M_seek_return(off_type __off, _State_type __state) {
1.294 - if (__off != -1) {
1.295 - if (_M_in_input_mode)
1.296 - _M_exit_input_mode();
1.297 -#ifndef __SYMBIAN32__
1.298 - _M_in_input_mode = false; //moved down, because setg again sets input mode
1.299 -#endif
1.300 - _M_in_output_mode = false;
1.301 - _M_in_putback_mode = false;
1.302 - _M_in_error_mode = false;
1.303 - this->setg(0, 0, 0);
1.304 - this->setp(0, 0);
1.305 -#ifdef __SYMBIAN32__
1.306 - _M_in_input_mode = false;
1.307 -#endif
1.308 - }
1.309 -
1.310 - pos_type __result(__off);
1.311 - __result.state(__state);
1.312 - return __result;
1.313 - }
1.314 -
1.315 - bool _M_seek_init(bool __do_unshift);
1.316 -
1.317 - void _M_setup_codecvt(const locale&);
1.318 -
1.319 -private: // Data members used in all modes.
1.320 -
1.321 - _Filebuf_base _M_base;
1.322 -
1.323 -private: // Locale-related information.
1.324 -
1.325 - unsigned char _M_constant_width;
1.326 - unsigned char _M_always_noconv;
1.327 -
1.328 - // private: // Mode flags.
1.329 - unsigned char _M_int_buf_dynamic; // True if internal buffer is heap allocated,
1.330 - // false if it was supplied by the user.
1.331 - unsigned char _M_in_input_mode;
1.332 - unsigned char _M_in_output_mode;
1.333 - unsigned char _M_in_error_mode;
1.334 - unsigned char _M_in_putback_mode;
1.335 -
1.336 - // Internal buffer: characters seen by the filebuf's clients.
1.337 - _CharT* _M_int_buf;
1.338 - _CharT* _M_int_buf_EOS;
1.339 -
1.340 - // External buffer: characters corresponding to the external file.
1.341 - char* _M_ext_buf;
1.342 - char* _M_ext_buf_EOS;
1.343 -
1.344 - // The range [_M_ext_buf, _M_ext_buf_converted) contains the external
1.345 - // characters corresponding to the sequence in the internal buffer. The
1.346 - // range [_M_ext_buf_converted, _M_ext_buf_end) contains characters that
1.347 - // have been read into the external buffer but have not been converted
1.348 - // to an internal sequence.
1.349 - char* _M_ext_buf_converted;
1.350 - char* _M_ext_buf_end;
1.351 -
1.352 - // State corresponding to beginning of internal buffer.
1.353 - _State_type _M_state;
1.354 -
1.355 -private: // Data members used only in input mode.
1.356 -
1.357 - // Similar to _M_state except that it corresponds to
1.358 - // the end of the internal buffer instead of the beginning.
1.359 - _State_type _M_end_state;
1.360 -
1.361 - // This is a null pointer unless we are in mmap input mode.
1.362 - void* _M_mmap_base;
1.363 - streamoff _M_mmap_len;
1.364 -
1.365 -private: // Data members used only in putback mode.
1.366 - _CharT* _M_saved_eback;
1.367 - _CharT* _M_saved_gptr;
1.368 - _CharT* _M_saved_egptr;
1.369 -
1.370 - typedef codecvt<_CharT, char, _State_type> _Codecvt;
1.371 - const _Codecvt* _M_codecvt;
1.372 -
1.373 - int _M_width; // Width of the encoding (if constant), else 1
1.374 - int _M_max_width; // Largest possible width of single character.
1.375 -
1.376 -
1.377 - enum { _S_pback_buf_size = 8 };
1.378 - _CharT _M_pback_buf[_S_pback_buf_size];
1.379 -
1.380 - // for _Noconv_output
1.381 -public:
1.382 - bool _M_write(char* __buf, ptrdiff_t __n) {return _M_base._M_write(__buf, __n); }
1.383 -
1.384 -public:
1.385 - int_type
1.386 - _M_do_noconv_input() {
1.387 - _M_ext_buf_converted = _M_ext_buf_end;
1.388 - this->setg((char_type*)_M_ext_buf, (char_type*)_M_ext_buf, (char_type*)_M_ext_buf_end);
1.389 - return traits_type::to_int_type(*_M_ext_buf);
1.390 - }
1.391 -};
1.392 -
1.393 -# if defined (_STLP_USE_TEMPLATE_EXPORT)
1.394 -_STLP_EXPORT_TEMPLATE_CLASS basic_filebuf<char, char_traits<char> >;
1.395 -# if ! defined (_STLP_NO_WCHAR_T)
1.396 -_STLP_EXPORT_TEMPLATE_CLASS basic_filebuf<wchar_t, char_traits<wchar_t> >;
1.397 -# endif
1.398 -# endif /* _STLP_USE_TEMPLATE_EXPORT */
1.399 -
1.400 -// public:
1.401 -// helper class.
1.402 -template <class _CharT>
1.403 -struct _Filebuf_Tmp_Buf
1.404 -{
1.405 - _CharT* _M_ptr;
1.406 - _Filebuf_Tmp_Buf(ptrdiff_t __n) : _M_ptr(0) { _M_ptr = new _CharT[__n]; }
1.407 - ~_Filebuf_Tmp_Buf() { delete[] _M_ptr; }
1.408 -};
1.409 -
1.410 -
1.411 -//
1.412 -// This class had to be designed very carefully to work
1.413 -// with Visual C++.
1.414 -//
1.415 -template <class _Traits>
1.416 -class _Noconv_output {
1.417 -public:
1.418 - typedef typename _Traits::char_type char_type;
1.419 - static bool _STLP_CALL _M_doit(basic_filebuf<char_type, _Traits >*,
1.420 - char_type*, char_type*)
1.421 - {
1.422 - return false;
1.423 - }
1.424 -};
1.425 -
1.426 -_STLP_TEMPLATE_NULL
1.427 -class _STLP_CLASS_DECLSPEC _Noconv_output< char_traits<char> > {
1.428 -public:
1.429 - static bool _STLP_CALL
1.430 - _M_doit(basic_filebuf<char, char_traits<char> >* __buf,
1.431 - char* __first, char* __last)
1.432 - {
1.433 - ptrdiff_t __n = __last - __first;
1.434 - if (__buf->_M_write(__first, __n)) {
1.435 - return true;
1.436 - }
1.437 - else
1.438 - return false;
1.439 - }
1.440 -};
1.441 -
1.442 -//----------------------------------------------------------------------
1.443 -// basic_filebuf<> helper functions.
1.444 -
1.445 -
1.446 -//----------------------------------------
1.447 -// Helper functions for switching between modes.
1.448 -
1.449 -//
1.450 -// This class had to be designed very carefully to work
1.451 -// with Visual C++.
1.452 -//
1.453 -template <class _Traits>
1.454 -class _Noconv_input {
1.455 -public:
1.456 - typedef typename _Traits::int_type int_type;
1.457 - typedef typename _Traits::char_type char_type;
1.458 -
1.459 - static inline int_type _STLP_CALL
1.460 - _M_doit(basic_filebuf<char_type, _Traits>*)
1.461 - {
1.462 - return 0;
1.463 - }
1.464 -};
1.465 -
1.466 -_STLP_TEMPLATE_NULL
1.467 -class _Noconv_input<char_traits<char> > {
1.468 -public:
1.469 - static inline int _STLP_CALL
1.470 - _M_doit(basic_filebuf<char, char_traits<char> >* __buf) {
1.471 - return __buf->_M_do_noconv_input();
1.472 - }
1.473 -};
1.474 -
1.475 -// underflow() may be called for one of two reasons. (1) We've
1.476 -// been going through the special putback buffer, and we need to move back
1.477 -// to the regular internal buffer. (2) We've exhausted the internal buffer,
1.478 -// and we need to replentish it.
1.479 -template <class _CharT, class _Traits>
1.480 -class _Underflow {
1.481 -public:
1.482 - typedef typename _Traits::int_type int_type;
1.483 - typedef _Traits traits_type;
1.484 -
1.485 - static int_type _STLP_CALL _M_doit(basic_filebuf<_CharT, _Traits>* __this);
1.486 -};
1.487 -
1.488 -
1.489 -// Specialization of underflow: if the character type is char, maybe
1.490 -// we can use mmap instead of read.
1.491 -_STLP_TEMPLATE_NULL
1.492 -class _STLP_CLASS_DECLSPEC _Underflow< char, char_traits<char> > {
1.493 -public:
1.494 - typedef char_traits<char>::int_type int_type;
1.495 - typedef char_traits<char> traits_type;
1.496 - _STLP_DECLSPEC static int _STLP_CALL _M_doit(basic_filebuf<char, traits_type >* __this);
1.497 -};
1.498 -
1.499 -// There is a specialized version of underflow, for basic_filebuf<char>,
1.500 -// in fstream.cxx.
1.501 -
1.502 -template <class _CharT, class _Traits>
1.503 -_STLP_TYPENAME_ON_RETURN_TYPE _Underflow<_CharT, _Traits>::int_type // _STLP_CALL
1.504 - _Underflow<_CharT, _Traits>::_M_doit(basic_filebuf<_CharT, _Traits>* __this)
1.505 -{
1.506 - if (!__this->_M_in_input_mode) {
1.507 - if (!__this->_M_switch_to_input_mode())
1.508 - return traits_type::eof();
1.509 - }
1.510 -
1.511 - else if (__this->_M_in_putback_mode) {
1.512 - __this->_M_exit_putback_mode();
1.513 - if (__this->gptr() != __this->egptr()) {
1.514 - int_type __c = traits_type::to_int_type(*__this->gptr());
1.515 - return __c;
1.516 - }
1.517 - }
1.518 -
1.519 - return __this->_M_underflow_aux();
1.520 -}
1.521 -
1.522 -#if defined( _STLP_USE_TEMPLATE_EXPORT ) && ! defined (_STLP_NO_WCHAR_T)
1.523 -_STLP_EXPORT_TEMPLATE_CLASS _Underflow<wchar_t, char_traits<wchar_t> >;
1.524 -#endif
1.525 -
1.526 -
1.527 -//----------------------------------------------------------------------
1.528 -// Class basic_ifstream<>
1.529 -
1.530 -template <class _CharT, class _Traits>
1.531 -class basic_ifstream : public basic_istream<_CharT, _Traits>
1.532 -{
1.533 -public: // Types
1.534 - typedef _CharT char_type;
1.535 - typedef typename _Traits::int_type int_type;
1.536 - typedef typename _Traits::pos_type pos_type;
1.537 - typedef typename _Traits::off_type off_type;
1.538 - typedef _Traits traits_type;
1.539 -
1.540 - typedef basic_ios<_CharT, _Traits> _Basic_ios;
1.541 - typedef basic_istream<_CharT, _Traits> _Base;
1.542 - typedef basic_filebuf<_CharT, _Traits> _Buf;
1.543 -
1.544 -public: // Constructors, destructor.
1.545 -
1.546 - basic_ifstream() :
1.547 - basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() {
1.548 - this->init(&_M_buf);
1.549 - }
1.550 -
1.551 - explicit basic_ifstream(const char* __s, ios_base::openmode __mod = ios_base::in) :
1.552 - basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0),
1.553 - _M_buf() {
1.554 - this->init(&_M_buf);
1.555 - if (!_M_buf.open(__s, __mod | ios_base::in))
1.556 - this->setstate(ios_base::failbit);
1.557 - }
1.558 -
1.559 -# ifndef _STLP_NO_EXTENSIONS
1.560 - explicit basic_ifstream(int __id, ios_base::openmode __mod = ios_base::in) :
1.561 - basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() {
1.562 - this->init(&_M_buf);
1.563 - if (!_M_buf.open(__id, __mod | ios_base::in))
1.564 - this->setstate(ios_base::failbit);
1.565 - }
1.566 - basic_ifstream(const char* __s, ios_base::openmode __m,
1.567 - long __protection) :
1.568 - basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() {
1.569 - this->init(&_M_buf);
1.570 - if (!_M_buf.open(__s, __m | ios_base::in, __protection))
1.571 - this->setstate(ios_base::failbit);
1.572 - }
1.573 -
1.574 -# endif
1.575 -
1.576 - ~basic_ifstream() {}
1.577 -
1.578 -public: // File and buffer operations.
1.579 - basic_filebuf<_CharT, _Traits>* rdbuf() const
1.580 - { return __CONST_CAST(_Buf*,&_M_buf); }
1.581 -
1.582 - bool is_open() {
1.583 - return this->rdbuf()->is_open();
1.584 - }
1.585 -
1.586 - void open(const char* __s, ios_base::openmode __mod = ios_base::in) {
1.587 - if (!this->rdbuf()->open(__s, __mod | ios_base::in))
1.588 - this->setstate(ios_base::failbit);
1.589 - }
1.590 -
1.591 - void close() {
1.592 - if (!this->rdbuf()->close())
1.593 - this->setstate(ios_base::failbit);
1.594 - }
1.595 -
1.596 -
1.597 -private:
1.598 - basic_filebuf<_CharT, _Traits> _M_buf;
1.599 -};
1.600 -
1.601 -
1.602 -//----------------------------------------------------------------------
1.603 -// Class basic_ofstream<>
1.604 -
1.605 -template <class _CharT, class _Traits>
1.606 -class basic_ofstream : public basic_ostream<_CharT, _Traits>
1.607 -{
1.608 -public: // Types
1.609 - typedef _CharT char_type;
1.610 - typedef typename _Traits::int_type int_type;
1.611 - typedef typename _Traits::pos_type pos_type;
1.612 - typedef typename _Traits::off_type off_type;
1.613 - typedef _Traits traits_type;
1.614 -
1.615 - typedef basic_ios<_CharT, _Traits> _Basic_ios;
1.616 - typedef basic_ostream<_CharT, _Traits> _Base;
1.617 - typedef basic_filebuf<_CharT, _Traits> _Buf;
1.618 -
1.619 -public: // Constructors, destructor.
1.620 - basic_ofstream() :
1.621 - basic_ios<_CharT, _Traits>(),
1.622 - basic_ostream<_CharT, _Traits>(0), _M_buf() {
1.623 - this->init(&_M_buf);
1.624 - }
1.625 - explicit basic_ofstream(const char* __s, ios_base::openmode __mod = ios_base::out)
1.626 - : basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0),
1.627 - _M_buf() {
1.628 - this->init(&_M_buf);
1.629 - if (!_M_buf.open(__s, __mod | ios_base::out))
1.630 - this->setstate(ios_base::failbit);
1.631 - }
1.632 -
1.633 -# ifndef _STLP_NO_EXTENSIONS
1.634 - explicit basic_ofstream(int __id, ios_base::openmode __mod = ios_base::out)
1.635 - : basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0),
1.636 - _M_buf() {
1.637 - this->init(&_M_buf);
1.638 - if (!_M_buf.open(__id, __mod | ios_base::out))
1.639 - this->setstate(ios_base::failbit);
1.640 - }
1.641 - basic_ofstream(const char* __s, ios_base::openmode __m, long __protection) :
1.642 - basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0), _M_buf() {
1.643 - this->init(&_M_buf);
1.644 - if (!_M_buf.open(__s, __m | ios_base::out, __protection))
1.645 - this->setstate(ios_base::failbit);
1.646 - }
1.647 -# endif
1.648 -
1.649 - ~basic_ofstream() {}
1.650 -
1.651 -public: // File and buffer operations.
1.652 - basic_filebuf<_CharT, _Traits>* rdbuf() const
1.653 - { return __CONST_CAST(_Buf*,&_M_buf); }
1.654 -
1.655 - bool is_open() {
1.656 - return this->rdbuf()->is_open();
1.657 - }
1.658 -
1.659 - void open(const char* __s, ios_base::openmode __mod= ios_base::out) {
1.660 - if (!this->rdbuf()->open(__s, __mod | ios_base::out))
1.661 - this->setstate(ios_base::failbit);
1.662 - }
1.663 -
1.664 - void close() {
1.665 - if (!this->rdbuf()->close())
1.666 - this->setstate(ios_base::failbit);
1.667 - }
1.668 -
1.669 -private:
1.670 - basic_filebuf<_CharT, _Traits> _M_buf;
1.671 -};
1.672 -
1.673 -
1.674 -//----------------------------------------------------------------------
1.675 -// Class basic_fstream<>
1.676 -
1.677 -template <class _CharT, class _Traits>
1.678 -class basic_fstream : public basic_iostream<_CharT, _Traits>
1.679 -{
1.680 -public: // Types
1.681 - typedef _CharT char_type;
1.682 - typedef typename _Traits::int_type int_type;
1.683 - typedef typename _Traits::pos_type pos_type;
1.684 - typedef typename _Traits::off_type off_type;
1.685 - typedef _Traits traits_type;
1.686 -
1.687 - typedef basic_ios<_CharT, _Traits> _Basic_ios;
1.688 - typedef basic_iostream<_CharT, _Traits> _Base;
1.689 - typedef basic_filebuf<_CharT, _Traits> _Buf;
1.690 -
1.691 -public: // Constructors, destructor.
1.692 -
1.693 - _STLP_DECLSPEC basic_fstream();
1.694 - explicit basic_fstream(const char* __s,
1.695 - ios_base::openmode __mod = ios_base::in | ios_base::out) :
1.696 - basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() {
1.697 - this->init(&_M_buf);
1.698 - if (!_M_buf.open(__s, __mod))
1.699 - this->setstate(ios_base::failbit);
1.700 - }
1.701 -
1.702 -# ifndef _STLP_NO_EXTENSIONS
1.703 - explicit basic_fstream(int __id,
1.704 - ios_base::openmode __mod = ios_base::in | ios_base::out) :
1.705 - basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() {
1.706 - this->init(&_M_buf);
1.707 - if (!_M_buf.open(__id, __mod))
1.708 - this->setstate(ios_base::failbit);
1.709 - }
1.710 - basic_fstream(const char* __s, ios_base::openmode __m, long __protection) :
1.711 - basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() {
1.712 - this->init(&_M_buf);
1.713 - if (!_M_buf.open(__s, __m, __protection))
1.714 - this->setstate(ios_base::failbit);
1.715 - }
1.716 -# endif
1.717 - _STLP_DECLSPEC ~basic_fstream();
1.718 -
1.719 -public: // File and buffer operations.
1.720 -
1.721 - basic_filebuf<_CharT, _Traits>* rdbuf() const
1.722 - { return __CONST_CAST(_Buf*,&_M_buf); }
1.723 -
1.724 - bool is_open() {
1.725 - return this->rdbuf()->is_open();
1.726 - }
1.727 -
1.728 - void open(const char* __s,
1.729 - ios_base::openmode __mod =
1.730 - ios_base::in | ios_base::out) {
1.731 - if (!this->rdbuf()->open(__s, __mod))
1.732 - this->setstate(ios_base::failbit);
1.733 - }
1.734 -
1.735 - void close() {
1.736 - if (!this->rdbuf()->close())
1.737 - this->setstate(ios_base::failbit);
1.738 - }
1.739 -
1.740 -private:
1.741 - basic_filebuf<_CharT, _Traits> _M_buf;
1.742 -};
1.743 -
1.744 -_STLP_END_NAMESPACE
1.745 -
1.746 -# if !defined (_STLP_LINK_TIME_INSTANTIATION)
1.747 -# include <stl/_fstream.c>
1.748 -# endif
1.749 -
1.750 -_STLP_BEGIN_NAMESPACE
1.751 -
1.752 -# if defined (_STLP_USE_TEMPLATE_EXPORT)
1.753 -_STLP_EXPORT_TEMPLATE_CLASS basic_ifstream<char, char_traits<char> >;
1.754 -_STLP_EXPORT_TEMPLATE_CLASS basic_ofstream<char, char_traits<char> >;
1.755 -_STLP_EXPORT_TEMPLATE_CLASS basic_fstream<char, char_traits<char> >;
1.756 -# if ! defined (_STLP_NO_WCHAR_T)
1.757 -_STLP_EXPORT_TEMPLATE_CLASS basic_ifstream<wchar_t, char_traits<wchar_t> >;
1.758 -_STLP_EXPORT_TEMPLATE_CLASS basic_ofstream<wchar_t, char_traits<wchar_t> >;
1.759 -_STLP_EXPORT_TEMPLATE_CLASS basic_fstream<wchar_t, char_traits<wchar_t> >;
1.760 -# endif
1.761 -# endif /* _STLP_USE_TEMPLATE_EXPORT */
1.762 -
1.763 -_STLP_END_NAMESPACE
1.764 -
1.765 -#endif /* _STLP_FSTREAM */
1.766 -
1.767 -
1.768 -// Local Variables:
1.769 -// mode:C++
1.770 -// End: