--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/cppstdlib/stl/stlport/stl/_fstream.h Fri Jun 04 16:20:51 2010 +0100
@@ -0,0 +1,1019 @@
+/*
+ * Portions Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
+ *
+ * Copyright (c) 1999
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Copyright (c) 1999
+ * Boris Fomitchev
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted
+ * without fee, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
+ */
+// This header defines classes basic_filebuf, basic_ifstream,
+// basic_ofstream, and basic_fstream. These classes represent
+// streambufs and streams whose sources or destinations are files.
+
+#ifndef _STLP_INTERNAL_FSTREAM_H
+#define _STLP_INTERNAL_FSTREAM_H
+
+#if defined(__sgi) && !defined(__GNUC__) && !defined(_STANDARD_C_PLUS_PLUS)
+# error This header file requires the -LANG:std option
+#endif
+
+#ifndef _STLP_INTERNAL_STREAMBUF
+# include <stl/_streambuf.h>
+#endif
+
+#ifndef _STLP_INTERNAL_ISTREAM
+# include <stl/_istream.h>
+#endif
+
+#ifndef _STLP_INTERNAL_CODECVT_H
+# include <stl/_codecvt.h>
+#endif
+
+#if !defined (_STLP_USE_UNIX_IO) && !defined(_STLP_USE_WIN32_IO) && \
+ !defined (_STLP_USE_UNIX_EMULATION_IO) && !defined (_STLP_USE_STDIO_IO)
+
+# if defined (_STLP_UNIX) || defined (__CYGWIN__) || defined (__amigaos__) || defined (__EMX__)
+// open/close/read/write
+# define _STLP_USE_UNIX_IO
+# elif defined (_STLP_WIN32) && !defined (__SYMBIAN32__)
+// CreateFile/ReadFile/WriteFile
+# define _STLP_USE_WIN32_IO
+# elif defined (_STLP_WIN16) || defined (_STLP_MAC)
+// _open/_read/_write
+# define _STLP_USE_UNIX_EMULATION_IO
+# else
+// fopen/fread/fwrite
+# define _STLP_USE_STDIO_IO
+# endif /* _STLP_UNIX */
+#endif /* mode selection */
+
+#if defined (_STLP_USE_WIN32_IO)
+typedef void* _STLP_fd;
+#elif defined (_STLP_USE_UNIX_EMULATION_IO) || defined (_STLP_USE_STDIO_IO) || defined (_STLP_USE_UNIX_IO)
+typedef int _STLP_fd;
+#else
+# error "Configure i/o !"
+#endif
+
+#if defined(__SYMBIAN32__WSD__)
+size_t& get_fstream_Filebuf_Base_GetPageSize();
+#define _M_page_size get_fstream_Filebuf_Base_GetPageSize()
+#endif //__SYMBIAN32__WSD__
+
+_STLP_BEGIN_NAMESPACE
+
+//----------------------------------------------------------------------
+// Class _Filebuf_base, a private base class to factor out the system-
+// dependent code from basic_filebuf<>.
+
+class _STLP_CLASS_DECLSPEC _Filebuf_base {
+public: // Opening and closing files.
+ _STLP_DECLSPEC _Filebuf_base();
+
+ _STLP_DECLSPEC bool _M_open(const char*, ios_base::openmode, long __protection);
+ _STLP_DECLSPEC bool _M_open(const char*, ios_base::openmode);
+ _STLP_DECLSPEC bool _M_open(int __id, ios_base::openmode = ios_base::__default_mode);
+#if defined (_STLP_USE_WIN32_IO)
+ bool _M_open(_STLP_fd __id, ios_base::openmode = ios_base::__default_mode);
+#endif /* _STLP_USE_WIN32_IO */
+ _STLP_DECLSPEC bool _M_close();
+
+public: // Low-level I/O, like Unix read/write
+ _STLP_DECLSPEC ptrdiff_t _M_read(char* __buf, ptrdiff_t __n);
+ _STLP_DECLSPEC streamoff _M_seek(streamoff __offset, ios_base::seekdir __dir);
+ _STLP_DECLSPEC streamoff _M_file_size();
+ _STLP_DECLSPEC bool _M_write(char* __buf, ptrdiff_t __n);
+
+public: // Memory-mapped I/O.
+ _STLP_DECLSPEC void* _M_mmap(streamoff __offset, streamoff __len);
+ _STLP_DECLSPEC void _M_unmap(void* __mmap_base, streamoff __len);
+
+public:
+ // Returns a value n such that, if pos is the file pointer at the
+ // beginning of the range [first, last), pos + n is the file pointer at
+ // the end. On many operating systems n == __last - __first.
+ // In Unix, writing n characters always bumps the file position by n.
+ // In Windows text mode, however, it bumps the file position by n + m,
+ // where m is the number of newlines in the range. That's because an
+ // internal \n corresponds to an external two-character sequence.
+ streamoff _M_get_offset(char* __first, char* __last) {
+#if defined (_STLP_UNIX) || defined (_STLP_MAC)
+ return __last - __first;
+#else // defined (_STLP_WIN32) || defined (_STLP_WIN16) || defined (_STLP_DOS) || defined(N_PLAT_NLM)
+ return ( (_M_openmode & ios_base::binary) != 0 )
+ ? (__last - __first)
+ : count(__first, __last, '\n') + (__last - __first);
+#endif
+ }
+
+ // Returns true if we're in binary mode or if we're using an OS or file
+ // system where there is no distinction between text and binary mode.
+ bool _M_in_binary_mode() const {
+#if defined (_STLP_UNIX) || defined (_STLP_MAC) || defined(__BEOS__) || defined (__amigaos__) || defined (__SYMBIAN32__)
+ return true;
+#elif defined (_STLP_WIN32) || defined (_STLP_WIN16) || defined (_STLP_DOS) || defined (_STLP_VM) || defined (__EMX__) || defined(N_PLAT_NLM)
+ return (_M_openmode & ios_base::binary) != 0;
+#else
+# error "Port!"
+#endif
+ }
+
+ static void _S_initialize();
+
+protected: // Static data members.
+# if !defined(__SYMBIAN32__WSD__)
+ static size_t _M_page_size;
+#endif //__SYMBIAN32__
+
+protected: // Data members.
+ _STLP_fd _M_file_id;
+#if defined (_STLP_USE_STDIO_IO)
+ // for stdio, the whole FILE* is being kept here
+ FILE* _M_file;
+#endif
+#if defined (_STLP_USE_WIN32_IO)
+ _STLP_fd _M_view_id;
+#endif
+
+ ios_base::openmode _M_openmode ;
+ unsigned char _M_is_open ;
+ unsigned char _M_should_close ;
+ unsigned char _M_regular_file ;
+
+public :
+#if defined(__SYMBIAN32__) && defined (__EPOC32__)
+ /* On Symbian,we can't make this inline. It violates one address rule */
+ _STLP_DECLSPEC static size_t __page_size();
+#else
+ static size_t _STLP_CALL __page_size() { return _M_page_size; }
+#endif
+ int __o_mode() const { return (int)_M_openmode; }
+ bool __is_open() const { return (_M_is_open !=0 ); }
+ bool __should_close() const { return (_M_should_close != 0); }
+ bool __regular_file() const { return (_M_regular_file != 0); }
+ _STLP_fd __get_fd() const { return _M_file_id; }
+};
+
+//----------------------------------------------------------------------
+// Class basic_filebuf<>.
+
+// Forward declaration of two helper classes.
+template <class _Traits> class _Noconv_input;
+_STLP_TEMPLATE_NULL
+class _Noconv_input<char_traits<char> >;
+
+template <class _Traits> class _Noconv_output;
+_STLP_TEMPLATE_NULL
+class _Noconv_output< char_traits<char> >;
+
+// There is a specialized version of underflow, for basic_filebuf<char>,
+// in fstream.cxx.
+
+template <class _CharT, class _Traits>
+class _Underflow;
+
+_STLP_TEMPLATE_NULL class _Underflow< char, char_traits<char> >;
+
+// public:
+// helper class.
+template <class _CharT>
+struct _Filebuf_Tmp_Buf {
+ _CharT* _M_ptr;
+ _Filebuf_Tmp_Buf(ptrdiff_t __n) : _M_ptr(0) { _M_ptr = new _CharT[__n]; }
+ ~_Filebuf_Tmp_Buf() { delete[] _M_ptr; }
+};
+
+template <class _CharT, class _Traits>
+class basic_filebuf : public basic_streambuf<_CharT, _Traits> {
+public: // Types.
+ typedef _CharT char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ typedef typename _Traits::state_type _State_type;
+ typedef basic_streambuf<_CharT, _Traits> _Base;
+ typedef basic_filebuf<_CharT, _Traits> _Self;
+
+public: // Constructors, destructor.
+ basic_filebuf();
+ ~basic_filebuf()
+ {
+ this->close();
+ _M_deallocate_buffers();
+ }
+
+public: // Opening and closing files.
+ bool is_open() const { return _M_base.__is_open(); }
+
+ _Self* open(const char* __s, ios_base::openmode __m) {
+ return _M_base._M_open(__s, __m) ? this : 0;
+ }
+
+#if !defined (_STLP_NO_EXTENSIONS)
+ // These two version of open() and file descriptor getter are extensions.
+ _Self* open(const char* __s, ios_base::openmode __m,
+ long __protection) {
+ return _M_base._M_open(__s, __m, __protection) ? this : 0;
+ }
+
+ _STLP_fd fd() const { return _M_base.__get_fd(); }
+
+ _Self* open(int __id, ios_base::openmode _Init_mode = ios_base::__default_mode) {
+ return this->_M_open(__id, _Init_mode);
+ }
+
+# if defined (_STLP_USE_WIN32_IO)
+ _Self* open(_STLP_fd __id, ios_base::openmode _Init_mode = ios_base::__default_mode) {
+ return _M_base._M_open(__id, _Init_mode) ? this : 0;
+ }
+# endif /* _STLP_USE_WIN32_IO */
+
+#endif
+
+ _Self* _M_open(int __id, ios_base::openmode _Init_mode = ios_base::__default_mode) {
+ return _M_base._M_open(__id, _Init_mode) ? this : 0;
+ }
+
+ _Self* close();
+
+protected: // Virtual functions from basic_streambuf.
+
+ virtual streamsize showmanyc() {
+
+ // Is there any possibility that reads can succeed?
+ if (!this->is_open() || _M_in_output_mode || _M_in_error_mode)
+ return -1;
+ else if (_M_in_putback_mode)
+ return this->egptr() - this->gptr();
+ else if (_M_constant_width) {
+ streamoff __pos = _M_base._M_seek(0, ios_base::cur);
+ streamoff __size = _M_base._M_file_size();
+ return __pos >= 0 && __size > __pos ? __size - __pos : 0;
+ }
+ else
+ return 0;
+
+ }
+ virtual int_type underflow() {
+
+ return _Underflow<_CharT, _Traits>::_M_doit(this);
+
+ }
+
+ virtual int_type pbackfail(int_type __c= traits_type::eof()) {
+
+ const int_type __eof = traits_type::eof();
+
+ // If we aren't already in input mode, pushback is impossible.
+ if (!_M_in_input_mode)
+ return __eof;
+
+ // We can use the ordinary get buffer if there's enough space, and
+ // if it's a buffer that we're allowed to write to.
+ if (this->gptr() != this->eback() &&
+ (traits_type::eq_int_type(__c, __eof) ||
+ traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1]) ||
+ !_M_mmap_base)) {
+ this->gbump(-1);
+ if (traits_type::eq_int_type(__c, __eof) ||
+ traits_type::eq(traits_type::to_char_type(__c), *this->gptr()))
+ return traits_type::to_int_type(*this->gptr());
+ }
+ else if (!traits_type::eq_int_type(__c, __eof)) {
+ // Are we in the putback buffer already?
+ _CharT* __pback_end = _M_pback_buf + __STATIC_CAST(int,_S_pback_buf_size);
+ if (_M_in_putback_mode) {
+ // Do we have more room in the putback buffer?
+ if (this->eback() != _M_pback_buf)
+ this->setg(this->egptr() - 1, this->egptr() - 1, __pback_end);
+ else
+ return __eof; // No more room in the buffer, so fail.
+ }
+ else { // We're not yet in the putback buffer.
+ _M_saved_eback = this->eback();
+ _M_saved_gptr = this->gptr();
+ _M_saved_egptr = this->egptr();
+ this->setg(__pback_end - 1, __pback_end - 1, __pback_end);
+ _M_in_putback_mode = true;
+ }
+ }
+ else
+ return __eof;
+
+ // We have made a putback position available. Assign to it, and return.
+ *this->gptr() = traits_type::to_char_type(__c);
+ return __c;
+
+ }
+
+ virtual int_type overflow(int_type __c) {
+
+ // Switch to output mode, if necessary.
+ if (!_M_in_output_mode)
+ if (!_M_switch_to_output_mode())
+ return traits_type::eof();
+
+ _CharT* __ibegin = this->_M_int_buf;
+ _CharT* __iend = this->pptr();
+ this->setp(_M_int_buf, _M_int_buf_EOS - 1);
+
+ // Put __c at the end of the internal buffer.
+ if (!traits_type::eq_int_type(__c, traits_type::eof()))
+ *__iend++ = _Traits::to_char_type(__c);
+
+ // For variable-width encodings, output may take more than one pass.
+ while (__ibegin != __iend) {
+ const _CharT* __inext = __ibegin;
+ char* __enext = _M_ext_buf;
+ typename _Codecvt::result __status
+ = _M_codecvt->out(_M_state, __ibegin, __iend, __inext,
+ _M_ext_buf, _M_ext_buf_EOS, __enext);
+ if (__status == _Codecvt::noconv) {
+ return _Noconv_output<_Traits>::_M_doit(this, __ibegin, __iend)
+ ? traits_type::not_eof(__c)
+ : _M_output_error();
+ }
+
+ // For a constant-width encoding we know that the external buffer
+ // is large enough, so failure to consume the entire internal buffer
+ // or to produce the correct number of external characters, is an error.
+ // For a variable-width encoding, however, we require only that we
+ // consume at least one internal character
+ else if (__status != _Codecvt::error &&
+ (((__inext == __iend) &&
+ (__enext - _M_ext_buf == _M_width * (__iend - __ibegin))) ||
+ (!_M_constant_width && __inext != __ibegin))) {
+ // We successfully converted part or all of the internal buffer.
+ ptrdiff_t __n = __enext - _M_ext_buf;
+ if (_M_write(_M_ext_buf, __n))
+ __ibegin += __inext - __ibegin;
+ else
+ return _M_output_error();
+ }
+ else
+ return _M_output_error();
+ }
+
+ return traits_type::not_eof(__c);
+
+ }
+
+ virtual basic_streambuf<_CharT, _Traits>* setbuf(_CharT* __buf, streamsize __n) {
+
+ if (!_M_in_input_mode &&! _M_in_output_mode && !_M_in_error_mode &&
+ _M_int_buf == 0) {
+ if (__buf == 0 && __n == 0)
+ _M_allocate_buffers(0, 1);
+ else if (__buf != 0 && __n > 0)
+ _M_allocate_buffers(__buf, __n);
+ }
+ return this;
+
+ }
+
+ virtual pos_type seekoff(off_type __off,
+ ios_base::seekdir __whence,
+ ios_base::openmode /* dummy */) {
+
+ if (this->is_open() &&
+ (__off == 0 || (_M_constant_width && this->_M_base._M_in_binary_mode()))) {
+
+ if (!_M_seek_init(__off != 0 || __whence != ios_base::cur))
+ return pos_type(-1);
+
+ // Seek to beginning or end, regardless of whether we're in input mode.
+ if (__whence == ios_base::beg || __whence == ios_base::end)
+ return _M_seek_return(_M_base._M_seek(_M_width * __off, __whence),
+ _State_type());
+
+ // Seek relative to current position. Complicated if we're in input mode.
+ else if (__whence == ios_base::cur) {
+ if (!_M_in_input_mode)
+ return _M_seek_return(_M_base._M_seek(_M_width * __off, __whence),
+ _State_type());
+ else if (_M_mmap_base != 0) {
+ // __off is relative to gptr(). We need to do a bit of arithmetic
+ // to get an offset relative to the external file pointer.
+ streamoff __adjust = _M_mmap_len - (this->gptr() - (_CharT*) _M_mmap_base);
+
+ // if __off == 0, we do not need to exit input mode and to shift file pointer
+ return __off == 0 ? pos_type(_M_base._M_seek(0, ios_base::cur) - __adjust)
+ : _M_seek_return(_M_base._M_seek(__off - __adjust, ios_base::cur), _State_type());
+ }
+ else if (_M_constant_width) { // Get or set the position.
+ streamoff __iadj = _M_width * (this->gptr() - this->eback());
+
+ // Compensate for offset relative to gptr versus offset relative
+ // to external pointer. For a text-oriented stream, where the
+ // compensation is more than just pointer arithmetic, we may get
+ // but not set the current position.
+
+ if (__iadj <= _M_ext_buf_end - _M_ext_buf) {
+ streamoff __eadj = _M_base._M_get_offset(_M_ext_buf + __STATIC_CAST(ptrdiff_t, __iadj), _M_ext_buf_end);
+
+ return __off == 0 ? pos_type(_M_base._M_seek(0, ios_base::cur) - __eadj)
+ : _M_seek_return(_M_base._M_seek(__off - __eadj, ios_base::cur), _State_type());
+ }
+ } else { // Get the position. Encoding is var width.
+ // Get position in internal buffer.
+ ptrdiff_t __ipos = this->gptr() - this->eback();
+
+ // Get corresponding position in external buffer.
+ _State_type __state = _M_state;
+ int __epos = _M_codecvt->length(__state, _M_ext_buf, _M_ext_buf_end,
+ __ipos);
+
+ if (__epos >= 0) {
+ // Sanity check (expensive): make sure __epos is the right answer.
+ _State_type __tmp_state = _M_state;
+ _Filebuf_Tmp_Buf<_CharT> __buf(__ipos);
+ _CharT* __ibegin = __buf._M_ptr;
+ _CharT* __inext = __ibegin;
+
+ const char* __dummy;
+ typename _Codecvt::result __status
+ = _M_codecvt->in(__tmp_state,
+ _M_ext_buf, _M_ext_buf + __epos, __dummy,
+ __ibegin, __ibegin + __ipos, __inext);
+ if (__status != _Codecvt::error &&
+ (__status == _Codecvt::noconv ||
+ (__inext == __ibegin + __ipos &&
+ equal(this->eback(), this->gptr(), __ibegin, _STLP_PRIV _Eq_traits<traits_type>())))) {
+ // Get the current position (at the end of the external buffer),
+ // then adjust it. Again, it might be a text-oriented stream.
+ streamoff __cur = _M_base._M_seek(0, ios_base::cur);
+ streamoff __adj =
+ _M_base._M_get_offset(_M_ext_buf, _M_ext_buf + __epos) -
+ _M_base._M_get_offset(_M_ext_buf, _M_ext_buf_end);
+ if (__cur != -1 && __cur + __adj >= 0)
+ return __off == 0 ? pos_type(__cur + __adj)
+ : _M_seek_return(__cur + __adj, __state);
+ //return _M_seek_return(__cur + __adj, __state);
+ }
+ // We failed the sanity check here.
+ }
+ }
+ }
+ // Unrecognized value for __whence here.
+ }
+
+ return pos_type(-1);
+
+ }
+
+ virtual pos_type seekpos(pos_type __pos,
+ ios_base::openmode /* dummy */) {
+
+ if (this->is_open()) {
+ if (!_M_seek_init(true))
+ return pos_type(-1);
+
+ streamoff __off = off_type(__pos);
+ if (__off != -1 && _M_base._M_seek(__off, ios_base::beg) != -1) {
+ _M_state = __pos.state();
+ return _M_seek_return(__off, __pos.state());
+ }
+ }
+
+ return pos_type(-1);
+
+ }
+
+ virtual int sync() {
+
+ if (_M_in_output_mode)
+ return traits_type::eq_int_type(this->overflow(traits_type::eof()),
+ traits_type::eof()) ? -1 : 0;
+ return 0;
+
+ }
+
+ virtual void imbue(const locale& __loc) {
+
+ if (!_M_in_input_mode && !_M_in_output_mode && !_M_in_error_mode) {
+ this->_M_setup_codecvt(__loc);
+ }
+
+ }
+
+
+private: // Helper functions.
+
+ // Precondition: we are currently in putback input mode. Effect:
+ // switches back to ordinary input mode.
+ void _M_exit_putback_mode() {
+ this->setg(_M_saved_eback, _M_saved_gptr, _M_saved_egptr);
+ _M_in_putback_mode = false;
+ }
+ bool _M_switch_to_input_mode();
+ void _M_exit_input_mode();
+ bool _M_switch_to_output_mode();
+
+ int_type _M_input_error();
+ int_type _M_underflow_aux();
+ // friend class _Noconv_input<_Traits>;
+ // friend class _Noconv_output<_Traits>;
+ friend class _Underflow<_CharT, _Traits>;
+
+ int_type _M_output_error();
+ bool _M_unshift();
+
+ bool _M_allocate_buffers(_CharT* __buf, streamsize __n);
+ bool _M_allocate_buffers();
+ void _M_deallocate_buffers();
+
+ pos_type _M_seek_return(off_type __off, _State_type __state) {
+ if (__off != -1) {
+ if (_M_in_input_mode)
+ _M_exit_input_mode();
+ _M_in_input_mode = false;
+ _M_in_output_mode = false;
+ _M_in_putback_mode = false;
+ _M_in_error_mode = false;
+ this->setg(0, 0, 0);
+ this->setp(0, 0);
+ }
+
+ pos_type __result(__off);
+ __result.state(__state);
+ return __result;
+ }
+
+ bool _M_seek_init(bool __do_unshift);
+
+ void _M_setup_codecvt(const locale&, bool __on_imbue = true);
+
+private: // Data members used in all modes.
+
+ _Filebuf_base _M_base;
+
+private: // Locale-related information.
+
+ unsigned char _M_constant_width;
+ unsigned char _M_always_noconv;
+
+ // private: // Mode flags.
+ unsigned char _M_int_buf_dynamic; // True if internal buffer is heap allocated,
+ // false if it was supplied by the user.
+ unsigned char _M_in_input_mode;
+ unsigned char _M_in_output_mode;
+ unsigned char _M_in_error_mode;
+ unsigned char _M_in_putback_mode;
+
+ // Internal buffer: characters seen by the filebuf's clients.
+ _CharT* _M_int_buf;
+ _CharT* _M_int_buf_EOS;
+
+ // External buffer: characters corresponding to the external file.
+ char* _M_ext_buf;
+ char* _M_ext_buf_EOS;
+
+ // The range [_M_ext_buf, _M_ext_buf_converted) contains the external
+ // characters corresponding to the sequence in the internal buffer. The
+ // range [_M_ext_buf_converted, _M_ext_buf_end) contains characters that
+ // have been read into the external buffer but have not been converted
+ // to an internal sequence.
+ char* _M_ext_buf_converted;
+ char* _M_ext_buf_end;
+
+ // State corresponding to beginning of internal buffer.
+ _State_type _M_state;
+
+private: // Data members used only in input mode.
+
+ // Similar to _M_state except that it corresponds to
+ // the end of the internal buffer instead of the beginning.
+ _State_type _M_end_state;
+
+ // This is a null pointer unless we are in mmap input mode.
+ void* _M_mmap_base;
+ streamoff _M_mmap_len;
+
+private: // Data members used only in putback mode.
+ _CharT* _M_saved_eback;
+ _CharT* _M_saved_gptr;
+ _CharT* _M_saved_egptr;
+
+ typedef codecvt<_CharT, char, _State_type> _Codecvt;
+ const _Codecvt* _M_codecvt;
+
+ int _M_width; // Width of the encoding (if constant), else 1
+ int _M_max_width; // Largest possible width of single character.
+
+
+ enum { _S_pback_buf_size = 8 };
+ _CharT _M_pback_buf[_S_pback_buf_size];
+
+ // for _Noconv_output
+public:
+ bool _M_write(char* __buf, ptrdiff_t __n) {return _M_base._M_write(__buf, __n); }
+
+public:
+ int_type
+ _M_do_noconv_input() {
+ _M_ext_buf_converted = _M_ext_buf_end;
+ /* this-> */ _Base::setg((char_type*)_M_ext_buf, (char_type*)_M_ext_buf, (char_type*)_M_ext_buf_end);
+ return traits_type::to_int_type(*_M_ext_buf);
+ }
+};
+
+#if defined (_STLP_USE_TEMPLATE_EXPORT)
+_STLP_EXPORT_TEMPLATE_CLASS basic_filebuf<char, char_traits<char> >;
+# if ! defined (_STLP_NO_WCHAR_T)
+_STLP_EXPORT_TEMPLATE_CLASS basic_filebuf<wchar_t, char_traits<wchar_t> >;
+# endif
+#endif /* _STLP_USE_TEMPLATE_EXPORT */
+
+//
+// This class had to be designed very carefully to work
+// with Visual C++.
+//
+template <class _Traits>
+class _Noconv_output {
+public:
+ typedef typename _Traits::char_type char_type;
+ static bool _STLP_CALL _M_doit(basic_filebuf<char_type, _Traits >*,
+ char_type*, char_type*)
+ { return false; }
+};
+
+_STLP_TEMPLATE_NULL
+class _STLP_CLASS_DECLSPEC _Noconv_output< char_traits<char> > {
+public:
+ static bool _STLP_CALL
+ _M_doit(basic_filebuf<char, char_traits<char> >* __buf,
+ char* __first, char* __last) {
+ ptrdiff_t __n = __last - __first;
+ return (__buf->_M_write(__first, __n));
+ }
+};
+
+//----------------------------------------------------------------------
+// basic_filebuf<> helper functions.
+
+
+//----------------------------------------
+// Helper functions for switching between modes.
+
+//
+// This class had to be designed very carefully to work
+// with Visual C++.
+//
+template <class _Traits>
+class _Noconv_input {
+public:
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::char_type char_type;
+
+ static inline int_type _STLP_CALL
+ _M_doit(basic_filebuf<char_type, _Traits>*)
+ { return _Traits::eof(); }
+};
+
+_STLP_TEMPLATE_NULL
+class _Noconv_input<char_traits<char> > {
+public:
+ static inline int _STLP_CALL
+ _M_doit(basic_filebuf<char, char_traits<char> >* __buf) {
+ return __buf->_M_do_noconv_input();
+ }
+};
+
+// underflow() may be called for one of two reasons. (1) We've
+// been going through the special putback buffer, and we need to move back
+// to the regular internal buffer. (2) We've exhausted the internal buffer,
+// and we need to replentish it.
+template <class _CharT, class _Traits>
+class _Underflow {
+public:
+ typedef typename _Traits::int_type int_type;
+ typedef _Traits traits_type;
+
+ static int_type _STLP_CALL _M_doit(basic_filebuf<_CharT, _Traits>* __this);
+};
+
+
+// Specialization of underflow: if the character type is char, maybe
+// we can use mmap instead of read.
+_STLP_TEMPLATE_NULL
+class _STLP_CLASS_DECLSPEC _Underflow< char, char_traits<char> > {
+public:
+ typedef char_traits<char>::int_type int_type;
+ typedef char_traits<char> traits_type;
+ _STLP_DECLSPEC static int _STLP_CALL _M_doit(basic_filebuf<char, traits_type >* __this);
+};
+
+// There is a specialized version of underflow, for basic_filebuf<char>,
+// in fstream.cxx.
+
+template <class _CharT, class _Traits>
+_STLP_TYPENAME_ON_RETURN_TYPE _Underflow<_CharT, _Traits>::int_type // _STLP_CALL
+ _Underflow<_CharT, _Traits>::_M_doit(basic_filebuf<_CharT, _Traits>* __this) {
+ if (!__this->_M_in_input_mode) {
+ if (!__this->_M_switch_to_input_mode())
+ return traits_type::eof();
+ }
+ else if (__this->_M_in_putback_mode) {
+ __this->_M_exit_putback_mode();
+ if (__this->gptr() != __this->egptr()) {
+ int_type __c = traits_type::to_int_type(*__this->gptr());
+ return __c;
+ }
+ }
+
+ return __this->_M_underflow_aux();
+}
+
+#if defined (_STLP_USE_TEMPLATE_EXPORT) && !defined (_STLP_NO_WCHAR_T)
+_STLP_EXPORT_TEMPLATE_CLASS _Underflow<wchar_t, char_traits<wchar_t> >;
+#endif
+
+//----------------------------------------------------------------------
+// Class basic_ifstream<>
+
+template <class _CharT, class _Traits>
+class basic_ifstream : public basic_istream<_CharT, _Traits> {
+public: // Types
+ typedef _CharT char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ typedef basic_ios<_CharT, _Traits> _Basic_ios;
+ typedef basic_istream<_CharT, _Traits> _Base;
+ typedef basic_filebuf<_CharT, _Traits> _Buf;
+
+public: // Constructors, destructor.
+
+ basic_ifstream() :
+ basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ }
+
+ explicit basic_ifstream(const char* __s, ios_base::openmode __mod = ios_base::in) :
+ basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0),
+ _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__s, __mod | ios_base::in))
+ this->setstate(ios_base::failbit);
+ }
+
+#if !defined (_STLP_NO_EXTENSIONS)
+ explicit basic_ifstream(int __id, ios_base::openmode __mod = ios_base::in) :
+ basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__id, __mod | ios_base::in))
+ this->setstate(ios_base::failbit);
+ }
+ basic_ifstream(const char* __s, ios_base::openmode __m,
+ long __protection) :
+ basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__s, __m | ios_base::in, __protection))
+ this->setstate(ios_base::failbit);
+ }
+
+# if defined (_STLP_USE_WIN32_IO)
+ explicit basic_ifstream(_STLP_fd __id, ios_base::openmode __mod = ios_base::in) :
+ basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__id, __mod | ios_base::in))
+ this->setstate(ios_base::failbit);
+ }
+# endif /* _STLP_USE_WIN32_IO */
+#endif
+
+ ~basic_ifstream() {}
+
+public: // File and buffer operations.
+ basic_filebuf<_CharT, _Traits>* rdbuf() const
+ { return __CONST_CAST(_Buf*,&_M_buf); }
+
+ bool is_open() {
+ return this->rdbuf()->is_open();
+ }
+
+ void open(const char* __s, ios_base::openmode __mod = ios_base::in) {
+ if (!this->rdbuf()->open(__s, __mod | ios_base::in))
+ this->setstate(ios_base::failbit);
+ }
+
+ void close() {
+ if (!this->rdbuf()->close())
+ this->setstate(ios_base::failbit);
+ }
+
+private:
+ basic_filebuf<_CharT, _Traits> _M_buf;
+};
+
+
+//----------------------------------------------------------------------
+// Class basic_ofstream<>
+
+template <class _CharT, class _Traits>
+class basic_ofstream : public basic_ostream<_CharT, _Traits> {
+public: // Types
+ typedef _CharT char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ typedef basic_ios<_CharT, _Traits> _Basic_ios;
+ typedef basic_ostream<_CharT, _Traits> _Base;
+ typedef basic_filebuf<_CharT, _Traits> _Buf;
+
+public: // Constructors, destructor.
+ basic_ofstream() :
+ basic_ios<_CharT, _Traits>(),
+ basic_ostream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ }
+ explicit basic_ofstream(const char* __s, ios_base::openmode __mod = ios_base::out)
+ : basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__s, __mod | ios_base::out))
+ this->setstate(ios_base::failbit);
+ }
+
+#if !defined (_STLP_NO_EXTENSIONS)
+ explicit basic_ofstream(int __id, ios_base::openmode __mod = ios_base::out)
+ : basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0),
+ _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__id, __mod | ios_base::out))
+ this->setstate(ios_base::failbit);
+ }
+ basic_ofstream(const char* __s, ios_base::openmode __m, long __protection) :
+ basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__s, __m | ios_base::out, __protection))
+ this->setstate(ios_base::failbit);
+ }
+# if defined (_STLP_USE_WIN32_IO)
+ explicit basic_ofstream(_STLP_fd __id, ios_base::openmode __mod = ios_base::out)
+ : basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0),
+ _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__id, __mod | ios_base::out))
+ this->setstate(ios_base::failbit);
+ }
+# endif /* _STLP_USE_WIN32_IO */
+#endif
+
+ ~basic_ofstream() {}
+
+public: // File and buffer operations.
+ basic_filebuf<_CharT, _Traits>* rdbuf() const
+ { return __CONST_CAST(_Buf*,&_M_buf); }
+
+ bool is_open() {
+ return this->rdbuf()->is_open();
+ }
+
+ void open(const char* __s, ios_base::openmode __mod= ios_base::out) {
+ if (!this->rdbuf()->open(__s, __mod | ios_base::out))
+ this->setstate(ios_base::failbit);
+ }
+
+ void close() {
+ if (!this->rdbuf()->close())
+ this->setstate(ios_base::failbit);
+ }
+
+private:
+ basic_filebuf<_CharT, _Traits> _M_buf;
+};
+
+
+//----------------------------------------------------------------------
+// Class basic_fstream<>
+
+template <class _CharT, class _Traits>
+class basic_fstream : public basic_iostream<_CharT, _Traits> {
+public: // Types
+ typedef _CharT char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ typedef basic_ios<_CharT, _Traits> _Basic_ios;
+ typedef basic_iostream<_CharT, _Traits> _Base;
+ typedef basic_filebuf<_CharT, _Traits> _Buf;
+
+public: // Constructors, destructor.
+
+ basic_fstream()
+ : basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ }
+
+ explicit basic_fstream(const char* __s,
+ ios_base::openmode __mod = ios_base::in | ios_base::out) :
+ basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__s, __mod))
+ this->setstate(ios_base::failbit);
+ }
+
+#if !defined (_STLP_NO_EXTENSIONS)
+ explicit basic_fstream(int __id,
+ ios_base::openmode __mod = ios_base::in | ios_base::out) :
+ basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__id, __mod))
+ this->setstate(ios_base::failbit);
+ }
+ basic_fstream(const char* __s, ios_base::openmode __m, long __protection) :
+ basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__s, __m, __protection))
+ this->setstate(ios_base::failbit);
+ }
+# if defined (_STLP_USE_WIN32_IO)
+ explicit basic_fstream(_STLP_fd __id,
+ ios_base::openmode __mod = ios_base::in | ios_base::out) :
+ basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() {
+ this->init(&_M_buf);
+ if (!_M_buf.open(__id, __mod))
+ this->setstate(ios_base::failbit);
+ }
+# endif /* _STLP_USE_WIN32_IO */
+#endif
+ ~basic_fstream() {}
+
+public: // File and buffer operations.
+
+ basic_filebuf<_CharT, _Traits>* rdbuf() const
+ { return __CONST_CAST(_Buf*,&_M_buf); }
+
+ bool is_open() {
+ return this->rdbuf()->is_open();
+ }
+
+ void open(const char* __s,
+ ios_base::openmode __mod =
+ ios_base::in | ios_base::out) {
+ if (!this->rdbuf()->open(__s, __mod))
+ this->setstate(ios_base::failbit);
+ }
+
+ void close() {
+ if (!this->rdbuf()->close())
+ this->setstate(ios_base::failbit);
+ }
+
+private:
+ basic_filebuf<_CharT, _Traits> _M_buf;
+
+#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
+ typedef basic_fstream<_CharT, _Traits> _Self;
+ //explicitely defined as private to avoid warnings:
+ basic_fstream(_Self const&);
+ _Self& operator = (_Self const&);
+#endif
+};
+
+_STLP_END_NAMESPACE
+
+#if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION)
+# include <stl/_fstream.c>
+#endif
+
+_STLP_BEGIN_NAMESPACE
+
+#if defined (_STLP_USE_TEMPLATE_EXPORT)
+_STLP_EXPORT_TEMPLATE_CLASS basic_ifstream<char, char_traits<char> >;
+_STLP_EXPORT_TEMPLATE_CLASS basic_ofstream<char, char_traits<char> >;
+_STLP_EXPORT_TEMPLATE_CLASS basic_fstream<char, char_traits<char> >;
+# if ! defined (_STLP_NO_WCHAR_T)
+_STLP_EXPORT_TEMPLATE_CLASS basic_ifstream<wchar_t, char_traits<wchar_t> >;
+_STLP_EXPORT_TEMPLATE_CLASS basic_ofstream<wchar_t, char_traits<wchar_t> >;
+_STLP_EXPORT_TEMPLATE_CLASS basic_fstream<wchar_t, char_traits<wchar_t> >;
+# endif
+#endif /* _STLP_USE_TEMPLATE_EXPORT */
+
+_STLP_END_NAMESPACE
+
+#endif /* _STLP_FSTREAM */
+
+
+// Local Variables:
+// mode:C++
+// End: