/*
* © Portions copyright (c) 2006-2007 Nokia Corporation. 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_H
#include <stl/_istream.h>
#endif
#ifndef _STLP_INTERNAL_CODECVT_H
#include <stl/_codecvt.h>
#endif
#ifndef _STLP_STDIO_FILE_H
#include <stl/_stdio_file.h>
#endif
// fbp : let us map 1 MB maximum, just be sure not to trash VM
//for hardware defining 8kb of mmap chunk
# ifdef __SYMBIAN32__
# define MMAP_CHUNK 0x2000UL
# else
# define MMAP_CHUNK 0x100000UL
# 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__) || defined (__SYMBIAN32__)
// open/close/read/write
# define _STLP_USE_UNIX_IO
# elif defined (_STLP_WIN32) && ! defined (__CYGWIN__)
// CreateFile/ReadFile/WriteFile
# define _STLP_USE_WIN32_IO
# elif defined (_STLP_WIN16) || defined (_STLP_WIN32) || 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
_STLP_BEGIN_NAMESPACE
#if defined(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
_STLP_DECLSPEC size_t& get_fstream_Filebuf_Base_GetPageSize();
#endif //__LIBSTD_CPP_SYMBIAN32_WSD__
//----------------------------------------------------------------------
// 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);
bool _M_open(int __id, ios_base::openmode = ios_base::__default_mode);
_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)
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 (_STLP_VXWORKS_TORNADO)
return true;
# elif defined (_STLP_WIN32) || defined (_STLP_WIN16) || defined (_STLP_DOS) || defined (_STLP_VM) || defined (__EMX__)
return (_M_openmode & ios_base::binary) != 0;
# else
//# error "Port!"
#pragma message(" Symbian I/O stream support on progress."__FILE__)
# endif
}
protected: // Static data members.
# if !defined(__LIBSTD_CPP_SYMBIAN32_WSD__) && !defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
static size_t _M_page_size;
#endif //__SYMBIAN32__
protected: // Data members.
_STLP_fd _M_file_id;
# ifdef _STLP_USE_STDIO_IO
// for stdio, the whole FILE* is being kept here
FILE* _M_file;
# endif
# ifdef _STLP_USE_WIN32_IO
void* _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(__LIBSTD_CPP_SYMBIAN32_WSD__) || defined(_STLP_LIBSTD_CPP_NO_STATIC_VAR_)
static size_t _STLP_CALL __page_size() { return get_fstream_Filebuf_Base_GetPageSize(); }
#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> >;
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();
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;
}
# ifndef _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);
}
# 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();
virtual int_type underflow();
virtual int_type pbackfail(int_type = traits_type::eof());
virtual int_type overflow(int_type = traits_type::eof());
virtual basic_streambuf<_CharT, _Traits>* setbuf(char_type*, streamsize);
virtual pos_type seekoff(off_type, ios_base::seekdir,
ios_base::openmode = ios_base::in | ios_base::out);
virtual pos_type seekpos(pos_type,
ios_base::openmode = ios_base::in | ios_base::out);
virtual int sync();
virtual void imbue(const locale&);
#ifdef __SYMBIAN32__
virtual int save_read_buffer ();
virtual void _change_input_mode();
#endif
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();
#ifndef __SYMBIAN32__
_M_in_input_mode = false; //moved down, because setg again sets input mode
#endif
_M_in_output_mode = false;
_M_in_putback_mode = false;
_M_in_error_mode = false;
this->setg(0, 0, 0);
this->setp(0, 0);
#ifdef __SYMBIAN32__
_M_in_input_mode = false;
#endif
}
pos_type __result(__off);
__result.state(__state);
return __result;
}
bool _M_seek_init(bool __do_unshift);
void _M_setup_codecvt(const locale&);
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->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 */
// 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; }
};
//
// 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;
if (__buf->_M_write(__first, __n)) {
return true;
}
else
return false;
}
};
//----------------------------------------------------------------------
// 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 0;
}
};
_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);
}
# ifndef _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);
}
# 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);
}
# ifndef _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);
}
# 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.
_STLP_DUMMY_IMP_DECLSPEC basic_fstream();
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);
}
# ifndef _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);
}
# endif
_STLP_DUMMY_IMP_DECLSPEC ~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;
};
_STLP_END_NAMESPACE
# if !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: