mirror of
https://github.com/reactos/reactos.git
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724 lines
23 KiB
C++
724 lines
23 KiB
C++
/*
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* Copyright (c) 1999
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* Silicon Graphics Computer Systems, Inc.
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*
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* Copyright (c) 1999
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* Boris Fomitchev
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*
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* This material is provided "as is", with absolutely no warranty expressed
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* or implied. Any use is at your own risk.
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*
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* Permission to use or copy this software for any purpose is hereby granted
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* without fee, provided the above notices are retained on all copies.
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* Permission to modify the code and to distribute modified code is granted,
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* provided the above notices are retained, and a notice that the code was
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* modified is included with the above copyright notice.
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*
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*/
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// This header defines classes basic_filebuf, basic_ifstream,
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// basic_ofstream, and basic_fstream. These classes represent
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// streambufs and streams whose sources or destinations are files.
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#ifndef _STLP_INTERNAL_FSTREAM_H
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#define _STLP_INTERNAL_FSTREAM_H
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#if defined(__sgi) && !defined(__GNUC__) && !defined(_STANDARD_C_PLUS_PLUS)
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# error This header file requires the -LANG:std option
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#endif
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#ifndef _STLP_INTERNAL_STREAMBUF
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# include <stl/_streambuf.h>
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#endif
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#ifndef _STLP_INTERNAL_ISTREAM
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# include <stl/_istream.h>
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#endif
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#ifndef _STLP_INTERNAL_CODECVT_H
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# include <stl/_codecvt.h>
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#endif
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#if defined (_STLP_USE_WIN32_IO)
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typedef void* _STLP_fd;
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#elif defined (_STLP_USE_UNIX_EMULATION_IO) || defined (_STLP_USE_STDIO_IO) || defined (_STLP_USE_UNIX_IO)
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typedef int _STLP_fd;
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#else
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# error "Configure i/o !"
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#endif
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_STLP_BEGIN_NAMESPACE
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//----------------------------------------------------------------------
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// Class _Filebuf_base, a private base class to factor out the system-
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// dependent code from basic_filebuf<>.
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class _STLP_CLASS_DECLSPEC _Filebuf_base {
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public: // Opening and closing files.
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_Filebuf_base();
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bool _M_open(const char*, ios_base::openmode, long __protection);
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bool _M_open(const char*, ios_base::openmode);
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bool _M_open(int __id, ios_base::openmode = ios_base::__default_mode);
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#if defined (_STLP_USE_STDIO_IO)
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bool _M_open(FILE *file, ios_base::openmode = ios_base::__default_mode);
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#endif /* _STLP_USE_STDIO_IO */
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#if defined (_STLP_USE_WIN32_IO)
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bool _M_open(_STLP_fd __id, ios_base::openmode = ios_base::__default_mode);
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#endif /* _STLP_USE_WIN32_IO */
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bool _M_close();
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public: // Low-level I/O, like Unix read/write
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ptrdiff_t _M_read(char* __buf, ptrdiff_t __n);
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streamoff _M_seek(streamoff __offset, ios_base::seekdir __dir);
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streamoff _M_file_size();
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bool _M_write(char* __buf, ptrdiff_t __n);
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public: // Memory-mapped I/O.
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void* _M_mmap(streamoff __offset, streamoff __len);
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void _M_unmap(void* __mmap_base, streamoff __len);
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public:
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// Returns a value n such that, if pos is the file pointer at the
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// beginning of the range [first, last), pos + n is the file pointer at
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// the end. On many operating systems n == __last - __first.
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// In Unix, writing n characters always bumps the file position by n.
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// In Windows text mode, however, it bumps the file position by n + m,
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// where m is the number of newlines in the range. That's because an
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// internal \n corresponds to an external two-character sequence.
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streamoff _M_get_offset(char* __first, char* __last) {
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#if defined (_STLP_UNIX) || defined (_STLP_MAC)
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return __last - __first;
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#else // defined (_STLP_WIN32)
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return ( (_M_openmode & ios_base::binary) != 0 )
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? (__last - __first)
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: count(__first, __last, '\n') + (__last - __first);
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#endif
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}
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// Returns true if we're in binary mode or if we're using an OS or file
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// system where there is no distinction between text and binary mode.
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bool _M_in_binary_mode() const {
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#if defined (_STLP_UNIX) || defined (_STLP_MAC) || defined(__BEOS__) || defined (__amigaos__)
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return true;
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#elif defined (_STLP_WIN32) || defined (_STLP_VM)
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return (_M_openmode & ios_base::binary) != 0;
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#else
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# error "Port!"
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#endif
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}
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static void _S_initialize();
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protected: // Static data members.
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static size_t _M_page_size;
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protected: // Data members.
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_STLP_fd _M_file_id;
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#if defined (_STLP_USE_STDIO_IO)
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// for stdio, the whole FILE* is being kept here
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FILE* _M_file;
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#endif
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ios_base::openmode _M_openmode ;
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unsigned char _M_is_open ;
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unsigned char _M_should_close ;
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unsigned char _M_regular_file ;
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#if defined (_STLP_USE_WIN32_IO)
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_STLP_fd _M_view_id;
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#endif
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public :
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static size_t _STLP_CALL __page_size() { return _M_page_size; }
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int __o_mode() const { return (int)_M_openmode; }
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bool __is_open() const { return (_M_is_open !=0 ); }
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bool __should_close() const { return (_M_should_close != 0); }
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bool __regular_file() const { return (_M_regular_file != 0); }
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_STLP_fd __get_fd() const { return _M_file_id; }
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};
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//----------------------------------------------------------------------
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// Class basic_filebuf<>.
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// Forward declaration of two helper classes.
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template <class _Traits> class _Noconv_input;
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template <class _Traits> class _Noconv_output;
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// There is a specialized version of underflow, for basic_filebuf<char>,
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// in fstream.cpp.
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template <class _CharT, class _Traits>
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class _Underflow;
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template <class _CharT, class _Traits>
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class basic_filebuf : public basic_streambuf<_CharT, _Traits> {
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public: // Types.
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typedef _CharT char_type;
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typedef typename _Traits::int_type int_type;
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typedef typename _Traits::pos_type pos_type;
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typedef typename _Traits::off_type off_type;
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typedef _Traits traits_type;
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typedef typename _Traits::state_type _State_type;
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typedef basic_streambuf<_CharT, _Traits> _Base;
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typedef basic_filebuf<_CharT, _Traits> _Self;
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public: // Constructors, destructor.
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basic_filebuf();
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~basic_filebuf();
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public: // Opening and closing files.
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bool is_open() const { return _M_base.__is_open(); }
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_Self* open(const char* __s, ios_base::openmode __m) {
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return _M_base._M_open(__s, __m) ? this : 0;
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}
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#if !defined (_STLP_NO_EXTENSIONS)
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// These two version of open() and file descriptor getter are extensions.
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_Self* open(const char* __s, ios_base::openmode __m,
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long __protection) {
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return _M_base._M_open(__s, __m, __protection) ? this : 0;
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}
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_STLP_fd fd() const { return _M_base.__get_fd(); }
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_Self* open(int __id, ios_base::openmode _Init_mode = ios_base::__default_mode) {
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return this->_M_open(__id, _Init_mode);
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}
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# if defined (_STLP_USE_STDIO_IO)
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_Self* open(FILE *file, ios_base::openmode _Init_mode = ios_base::__default_mode) {
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return _M_base._M_open(file, _Init_mode) ? this : 0;
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}
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# endif /* _STLP_USE_STDIO_IO */
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# if defined (_STLP_USE_WIN32_IO)
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_Self* open(_STLP_fd __id, ios_base::openmode _Init_mode = ios_base::__default_mode) {
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return _M_base._M_open(__id, _Init_mode) ? this : 0;
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}
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# endif /* _STLP_USE_WIN32_IO */
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#endif
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_Self* _M_open(int __id, ios_base::openmode _Init_mode = ios_base::__default_mode) {
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return _M_base._M_open(__id, _Init_mode) ? this : 0;
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}
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_Self* close();
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protected: // Virtual functions from basic_streambuf.
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virtual streamsize showmanyc();
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virtual int_type underflow();
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virtual int_type pbackfail(int_type = traits_type::eof());
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virtual int_type overflow(int_type = traits_type::eof());
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virtual basic_streambuf<_CharT, _Traits>* setbuf(char_type*, streamsize);
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virtual pos_type seekoff(off_type, ios_base::seekdir,
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ios_base::openmode = ios_base::in | ios_base::out);
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virtual pos_type seekpos(pos_type,
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ios_base::openmode = ios_base::in | ios_base::out);
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virtual int sync();
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virtual void imbue(const locale&);
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private: // Helper functions.
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// Precondition: we are currently in putback input mode. Effect:
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// switches back to ordinary input mode.
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void _M_exit_putback_mode() {
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this->setg(_M_saved_eback, _M_saved_gptr, _M_saved_egptr);
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_M_in_putback_mode = false;
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}
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bool _M_switch_to_input_mode();
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void _M_exit_input_mode();
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bool _M_switch_to_output_mode();
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int_type _M_input_error();
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int_type _M_underflow_aux();
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friend class _Underflow<_CharT, _Traits>;
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int_type _M_output_error();
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bool _M_unshift();
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bool _M_allocate_buffers(_CharT* __buf, streamsize __n);
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bool _M_allocate_buffers();
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void _M_deallocate_buffers();
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pos_type _M_seek_return(off_type __off, _State_type __state) {
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if (__off != -1) {
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if (_M_in_input_mode)
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_M_exit_input_mode();
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_M_in_input_mode = false;
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_M_in_output_mode = false;
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_M_in_putback_mode = false;
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_M_in_error_mode = false;
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this->setg(0, 0, 0);
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this->setp(0, 0);
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}
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pos_type __result(__off);
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__result.state(__state);
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return __result;
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}
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bool _M_seek_init(bool __do_unshift);
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void _M_setup_codecvt(const locale&, bool __on_imbue = true);
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private: // Data members used in all modes.
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_Filebuf_base _M_base;
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private: // Locale-related information.
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unsigned char _M_constant_width;
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unsigned char _M_always_noconv;
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// private: // Mode flags.
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unsigned char _M_int_buf_dynamic; // True if internal buffer is heap allocated,
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// false if it was supplied by the user.
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unsigned char _M_in_input_mode;
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unsigned char _M_in_output_mode;
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unsigned char _M_in_error_mode;
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unsigned char _M_in_putback_mode;
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// Internal buffer: characters seen by the filebuf's clients.
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_CharT* _M_int_buf;
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_CharT* _M_int_buf_EOS;
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// External buffer: characters corresponding to the external file.
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char* _M_ext_buf;
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char* _M_ext_buf_EOS;
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// The range [_M_ext_buf, _M_ext_buf_converted) contains the external
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// characters corresponding to the sequence in the internal buffer. The
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// range [_M_ext_buf_converted, _M_ext_buf_end) contains characters that
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// have been read into the external buffer but have not been converted
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// to an internal sequence.
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char* _M_ext_buf_converted;
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char* _M_ext_buf_end;
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// State corresponding to beginning of internal buffer.
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_State_type _M_state;
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private: // Data members used only in input mode.
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// Similar to _M_state except that it corresponds to
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// the end of the internal buffer instead of the beginning.
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_State_type _M_end_state;
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// This is a null pointer unless we are in mmap input mode.
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void* _M_mmap_base;
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streamoff _M_mmap_len;
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private: // Data members used only in putback mode.
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_CharT* _M_saved_eback;
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_CharT* _M_saved_gptr;
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_CharT* _M_saved_egptr;
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typedef codecvt<_CharT, char, _State_type> _Codecvt;
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const _Codecvt* _M_codecvt;
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int _M_width; // Width of the encoding (if constant), else 1
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int _M_max_width; // Largest possible width of single character.
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enum { _S_pback_buf_size = 8 };
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_CharT _M_pback_buf[_S_pback_buf_size];
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// for _Noconv_output
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public:
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bool _M_write(char* __buf, ptrdiff_t __n) {return _M_base._M_write(__buf, __n); }
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public:
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int_type
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_M_do_noconv_input() {
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_M_ext_buf_converted = _M_ext_buf_end;
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/* this-> */ _Base::setg((char_type*)_M_ext_buf, (char_type*)_M_ext_buf, (char_type*)_M_ext_buf_end);
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return traits_type::to_int_type(*_M_ext_buf);
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}
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};
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#if defined (_STLP_USE_TEMPLATE_EXPORT)
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_STLP_EXPORT_TEMPLATE_CLASS basic_filebuf<char, char_traits<char> >;
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# if ! defined (_STLP_NO_WCHAR_T)
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_STLP_EXPORT_TEMPLATE_CLASS basic_filebuf<wchar_t, char_traits<wchar_t> >;
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# endif
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#endif /* _STLP_USE_TEMPLATE_EXPORT */
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//
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// This class had to be designed very carefully to work
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// with Visual C++.
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//
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template <class _Traits>
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class _Noconv_output {
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public:
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typedef typename _Traits::char_type char_type;
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static bool _STLP_CALL _M_doit(basic_filebuf<char_type, _Traits >*,
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char_type*, char_type*)
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{ return false; }
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};
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_STLP_TEMPLATE_NULL
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class _STLP_CLASS_DECLSPEC _Noconv_output< char_traits<char> > {
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public:
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static bool _STLP_CALL
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_M_doit(basic_filebuf<char, char_traits<char> >* __buf,
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char* __first, char* __last) {
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ptrdiff_t __n = __last - __first;
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return (__buf->_M_write(__first, __n));
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}
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};
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//----------------------------------------------------------------------
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// basic_filebuf<> helper functions.
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//----------------------------------------
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// Helper functions for switching between modes.
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//
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// This class had to be designed very carefully to work
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// with Visual C++.
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//
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template <class _Traits>
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class _Noconv_input {
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public:
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typedef typename _Traits::int_type int_type;
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typedef typename _Traits::char_type char_type;
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static inline int_type _STLP_CALL
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_M_doit(basic_filebuf<char_type, _Traits>*)
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{ return _Traits::eof(); }
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};
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_STLP_TEMPLATE_NULL
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class _Noconv_input<char_traits<char> > {
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public:
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static inline int _STLP_CALL
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_M_doit(basic_filebuf<char, char_traits<char> >* __buf) {
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return __buf->_M_do_noconv_input();
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}
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};
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// underflow() may be called for one of two reasons. (1) We've
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// been going through the special putback buffer, and we need to move back
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// to the regular internal buffer. (2) We've exhausted the internal buffer,
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// and we need to replentish it.
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template <class _CharT, class _Traits>
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class _Underflow {
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public:
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typedef typename _Traits::int_type int_type;
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typedef _Traits traits_type;
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// There is a specialized version of underflow, for basic_filebuf<char>,
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// in fstream.cpp.
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static int_type _STLP_CALL _M_doit(basic_filebuf<_CharT, _Traits>* __this) {
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if (!__this->_M_in_input_mode) {
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if (!__this->_M_switch_to_input_mode())
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return traits_type::eof();
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}
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else if (__this->_M_in_putback_mode) {
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__this->_M_exit_putback_mode();
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if (__this->gptr() != __this->egptr()) {
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int_type __c = traits_type::to_int_type(*__this->gptr());
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return __c;
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}
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}
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return __this->_M_underflow_aux();
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}
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};
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// Specialization of underflow: if the character type is char, maybe
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// we can use mmap instead of read.
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_STLP_TEMPLATE_NULL
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class _STLP_CLASS_DECLSPEC _Underflow< char, char_traits<char> >
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{
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public:
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typedef char_traits<char>::int_type int_type;
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typedef char_traits<char> traits_type;
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static int_type _STLP_CALL _M_doit(basic_filebuf<char, traits_type >* __this);
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};
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#if defined (_STLP_USE_TEMPLATE_EXPORT) && !defined (_STLP_NO_WCHAR_T)
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_STLP_EXPORT_TEMPLATE_CLASS _Underflow<wchar_t, char_traits<wchar_t> >;
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#endif
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//----------------------------------------------------------------------
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// Class basic_ifstream<>
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template <class _CharT, class _Traits>
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class basic_ifstream : public basic_istream<_CharT, _Traits> {
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public: // Types
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typedef _CharT char_type;
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typedef typename _Traits::int_type int_type;
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typedef typename _Traits::pos_type pos_type;
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typedef typename _Traits::off_type off_type;
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typedef _Traits traits_type;
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typedef basic_ios<_CharT, _Traits> _Basic_ios;
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typedef basic_istream<_CharT, _Traits> _Base;
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typedef basic_filebuf<_CharT, _Traits> _Buf;
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public: // Constructors, destructor.
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basic_ifstream() :
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basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() {
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this->init(&_M_buf);
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}
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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:
|