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/* |
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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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|
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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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|
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#ifndef _STLP_FSTREAM |
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# define _STLP_FSTREAM |
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|
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#ifndef _STLP_OUTERMOST_HEADER_ID |
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# define _STLP_OUTERMOST_HEADER_ID 0x1025 |
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# include <stl/_prolog.h> |
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# if defined (__DMC__) && defined (_DLL) |
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# define _STLP_CLASS_IMPORT_DECLSPEC __declspec(dllimport) |
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# endif |
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#endif |
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|
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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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|
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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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|
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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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|
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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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|
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_STLP_BEGIN_NAMESPACE |
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|
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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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|
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class _STLP_CLASS_DECLSPEC _Filebuf_base |
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{ |
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public: // Opening and closing files. |
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_Filebuf_base(); |
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|
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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_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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|
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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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|
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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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|
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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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|
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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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|
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static void _S_initialize(); |
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|
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protected: // Static data members. |
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static size_t _M_page_size; |
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|
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protected: |
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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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|
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enum { |
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_is_open = 0x1, |
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_should_close = 0x2, |
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_regular = 0x4 |
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}; |
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|
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unsigned int_flags_; |
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|
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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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|
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public: |
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static size_t _STLP_CALL __page_size() |
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{ return _M_page_size; } |
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int __o_mode() const |
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{ return (int)_M_openmode; } |
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bool __is_open() const |
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{ return (int_flags_ & _is_open) != 0; } |
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bool __should_close() const |
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{ return (int_flags_ & _should_close) != 0; } |
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bool __regular_file() const |
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{ return (int_flags_ & _regular) != 0; } |
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_STLP_fd __get_fd() const |
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{ return _M_file_id; } |
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}; |
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|
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//---------------------------------------------------------------------- |
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// Class basic_filebuf<>. |
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|
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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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|
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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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|
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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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|
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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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|
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public: // Constructors, destructor. |
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basic_filebuf(); |
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~basic_filebuf(); |
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|
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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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|
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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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|
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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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|
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_STLP_fd fd() const { return _M_base.__get_fd(); } |
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|
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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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|
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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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|
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#endif |
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|
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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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|
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_Self* close(); |
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|
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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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|
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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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|
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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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|
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virtual int sync(); |
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virtual void imbue(const locale&); |
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|
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private: // Helper functions. |
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|
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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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{ |
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this->setg(_M_saved_eback, _M_saved_gptr, _M_saved_egptr); |
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int_flags_ &= ~_in_putback_mode; |
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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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|
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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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|
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int_type _M_output_error(); |
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bool _M_unshift(); |
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|
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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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|
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pos_type _M_seek_return(off_type __off, _State_type __state) |
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{ |
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if (__off != -1) { |
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if ( int_flags_ & _in_input_mode ) { |
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_M_exit_input_mode(); |
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} |
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int_flags_ &= ~(_in_input_mode | _in_output_mode | _in_putback_mode | _in_error_mode ); |
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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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|
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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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|
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bool _M_seek_init(bool __do_unshift); |
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|
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void _M_setup_codecvt(const locale&, bool __on_imbue = true); |
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|
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private: // Data members used in all modes. |
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|
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_Filebuf_base _M_base; |
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|
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private: // Locale-related information. |
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|
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enum { |
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_constant_width = 0x1, |
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_always_noconv = 0x2, |
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_int_buf_dynamic = 0x4, // set if internal buffer is heap allocated, |
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// unset if it was supplied by the user; |
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_in_input_mode = 0x8, |
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_in_output_mode = 0x10, |
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_in_error_mode = 0x20, |
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_in_putback_mode = 0x40 |
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}; |
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|
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unsigned int_flags_; |
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|
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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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|
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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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|
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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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|
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// State corresponding to beginning of internal buffer. |
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_State_type _M_state; |
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|
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private: // Data members used only in input mode. |
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|
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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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|
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// This is a null pointer unless we are in mmap input mode. |
| 322 |
void* _M_mmap_base; |
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streamoff _M_mmap_len; |
| 324 |
|
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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; |
| 328 |
_CharT* _M_saved_egptr; |
| 329 |
|
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typedef codecvt<_CharT, char, _State_type> _Codecvt; |
| 331 |
const _Codecvt* _M_codecvt; |
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|
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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. |
| 335 |
|
| 336 |
|
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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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|
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// for _Noconv_output |
| 341 |
public: |
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bool _M_write(char* __buf, ptrdiff_t __n) {return _M_base._M_write(__buf, __n); } |
| 343 |
|
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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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}; |
| 352 |
|
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#if defined (_STLP_USE_TEMPLATE_EXPORT) |
| 354 |
_STLP_EXPORT_TEMPLATE_CLASS basic_filebuf<char, char_traits<char> >; |
| 355 |
# if ! defined (_STLP_NO_WCHAR_T) |
| 356 |
_STLP_EXPORT_TEMPLATE_CLASS basic_filebuf<wchar_t, char_traits<wchar_t> >; |
| 357 |
# endif |
| 358 |
#endif /* _STLP_USE_TEMPLATE_EXPORT */ |
| 359 |
|
| 360 |
// |
| 361 |
// This class had to be designed very carefully to work |
| 362 |
// with Visual C++. |
| 363 |
// |
| 364 |
template <class _Traits> |
| 365 |
class _Noconv_output { |
| 366 |
public: |
| 367 |
typedef typename _Traits::char_type char_type; |
| 368 |
static bool _STLP_CALL _M_doit(basic_filebuf<char_type, _Traits >*, |
| 369 |
char_type*, char_type*) |
| 370 |
{ return false; } |
| 371 |
}; |
| 372 |
|
| 373 |
_STLP_TEMPLATE_NULL |
| 374 |
class _STLP_CLASS_DECLSPEC _Noconv_output< char_traits<char> > { |
| 375 |
public: |
| 376 |
static bool _STLP_CALL |
| 377 |
_M_doit(basic_filebuf<char, char_traits<char> >* __buf, |
| 378 |
char* __first, char* __last) { |
| 379 |
ptrdiff_t __n = __last - __first; |
| 380 |
return (__buf->_M_write(__first, __n)); |
| 381 |
} |
| 382 |
}; |
| 383 |
|
| 384 |
//---------------------------------------------------------------------- |
| 385 |
// basic_filebuf<> helper functions. |
| 386 |
|
| 387 |
|
| 388 |
//---------------------------------------- |
| 389 |
// Helper functions for switching between modes. |
| 390 |
|
| 391 |
// |
| 392 |
// This class had to be designed very carefully to work |
| 393 |
// with Visual C++. |
| 394 |
// |
| 395 |
template <class _Traits> |
| 396 |
class _Noconv_input { |
| 397 |
public: |
| 398 |
typedef typename _Traits::int_type int_type; |
| 399 |
typedef typename _Traits::char_type char_type; |
| 400 |
|
| 401 |
static inline int_type _STLP_CALL |
| 402 |
_M_doit(basic_filebuf<char_type, _Traits>*) |
| 403 |
{ return _Traits::eof(); } |
| 404 |
}; |
| 405 |
|
| 406 |
_STLP_TEMPLATE_NULL |
| 407 |
class _Noconv_input<char_traits<char> > { |
| 408 |
public: |
| 409 |
static inline int _STLP_CALL |
| 410 |
_M_doit(basic_filebuf<char, char_traits<char> >* __buf) { |
| 411 |
return __buf->_M_do_noconv_input(); |
| 412 |
} |
| 413 |
}; |
| 414 |
|
| 415 |
// underflow() may be called for one of two reasons. (1) We've |
| 416 |
// been going through the special putback buffer, and we need to move back |
| 417 |
// to the regular internal buffer. (2) We've exhausted the internal buffer, |
| 418 |
// and we need to replentish it. |
| 419 |
template <class _CharT, class _Traits> |
| 420 |
class _Underflow { |
| 421 |
public: |
| 422 |
typedef typename _Traits::int_type int_type; |
| 423 |
typedef _Traits traits_type; |
| 424 |
|
| 425 |
// There is a specialized version of underflow, for basic_filebuf<char>, |
| 426 |
// in fstream.cpp. |
| 427 |
static int_type _STLP_CALL _M_doit(basic_filebuf<_CharT, _Traits>* __this) { |
| 428 |
if ( (__this->int_flags_ & basic_filebuf<_CharT, _Traits>::_in_input_mode) == 0) { |
| 429 |
if (!__this->_M_switch_to_input_mode()) { |
| 430 |
return traits_type::eof(); |
| 431 |
} |
| 432 |
} else if ( __this->int_flags_ & basic_filebuf<_CharT, _Traits>::_in_putback_mode ) { |
| 433 |
__this->_M_exit_putback_mode(); |
| 434 |
if (__this->gptr() != __this->egptr()) { |
| 435 |
int_type __c = traits_type::to_int_type(*__this->gptr()); |
| 436 |
return __c; |
| 437 |
} |
| 438 |
} |
| 439 |
|
| 440 |
return __this->_M_underflow_aux(); |
| 441 |
} |
| 442 |
}; |
| 443 |
|
| 444 |
// Specialization of underflow: if the character type is char, maybe |
| 445 |
// we can use mmap instead of read. |
| 446 |
_STLP_TEMPLATE_NULL |
| 447 |
class _STLP_CLASS_DECLSPEC _Underflow< char, char_traits<char> > |
| 448 |
{ |
| 449 |
public: |
| 450 |
typedef char_traits<char>::int_type int_type; |
| 451 |
typedef char_traits<char> traits_type; |
| 452 |
static int_type _STLP_CALL _M_doit(basic_filebuf<char, traits_type >* __this); |
| 453 |
}; |
| 454 |
|
| 455 |
#if defined (_STLP_USE_TEMPLATE_EXPORT) && !defined (_STLP_NO_WCHAR_T) |
| 456 |
_STLP_EXPORT_TEMPLATE_CLASS _Underflow<wchar_t, char_traits<wchar_t> >; |
| 457 |
#endif |
| 458 |
|
| 459 |
#ifdef __SUNPRO_CC |
| 460 |
// Suppress warning that a derived class' rdbuf() hides basic_ios::rdbuf |
| 461 |
#pragma disable_warn |
| 462 |
#endif |
| 463 |
|
| 464 |
//---------------------------------------------------------------------- |
| 465 |
// Class basic_ifstream<> |
| 466 |
|
| 467 |
template <class _CharT, class _Traits> |
| 468 |
class basic_ifstream : public basic_istream<_CharT, _Traits> { |
| 469 |
public: // Types |
| 470 |
typedef _CharT char_type; |
| 471 |
typedef typename _Traits::int_type int_type; |
| 472 |
typedef typename _Traits::pos_type pos_type; |
| 473 |
typedef typename _Traits::off_type off_type; |
| 474 |
typedef _Traits traits_type; |
| 475 |
|
| 476 |
typedef basic_ios<_CharT, _Traits> _Basic_ios; |
| 477 |
typedef basic_istream<_CharT, _Traits> _Base; |
| 478 |
typedef basic_filebuf<_CharT, _Traits> _Buf; |
| 479 |
|
| 480 |
public: // Constructors, destructor. |
| 481 |
|
| 482 |
basic_ifstream() : |
| 483 |
basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() { |
| 484 |
this->init(&_M_buf); |
| 485 |
} |
| 486 |
|
| 487 |
explicit basic_ifstream(const char* __s, ios_base::openmode __mod = ios_base::in) : |
| 488 |
basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), |
| 489 |
_M_buf() { |
| 490 |
this->init(&_M_buf); |
| 491 |
if (!_M_buf.open(__s, __mod | ios_base::in)) |
| 492 |
this->setstate(ios_base::failbit); |
| 493 |
} |
| 494 |
|
| 495 |
#if !defined (_STLP_NO_EXTENSIONS) |
| 496 |
explicit basic_ifstream(int __id, ios_base::openmode __mod = ios_base::in) : |
| 497 |
basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() { |
| 498 |
this->init(&_M_buf); |
| 499 |
if (!_M_buf.open(__id, __mod | ios_base::in)) |
| 500 |
this->setstate(ios_base::failbit); |
| 501 |
} |
| 502 |
basic_ifstream(const char* __s, ios_base::openmode __m, |
| 503 |
long __protection) : |
| 504 |
basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() { |
| 505 |
this->init(&_M_buf); |
| 506 |
if (!_M_buf.open(__s, __m | ios_base::in, __protection)) |
| 507 |
this->setstate(ios_base::failbit); |
| 508 |
} |
| 509 |
|
| 510 |
# if defined (_STLP_USE_WIN32_IO) |
| 511 |
explicit basic_ifstream(_STLP_fd __id, ios_base::openmode __mod = ios_base::in) : |
| 512 |
basic_ios<_CharT, _Traits>(), basic_istream<_CharT, _Traits>(0), _M_buf() { |
| 513 |
this->init(&_M_buf); |
| 514 |
if (!_M_buf.open(__id, __mod | ios_base::in)) |
| 515 |
this->setstate(ios_base::failbit); |
| 516 |
} |
| 517 |
# endif /* _STLP_USE_WIN32_IO */ |
| 518 |
#endif |
| 519 |
|
| 520 |
~basic_ifstream() {} |
| 521 |
|
| 522 |
public: // File and buffer operations. |
| 523 |
basic_filebuf<_CharT, _Traits>* rdbuf() const |
| 524 |
{ return __CONST_CAST(_Buf*,&_M_buf); } |
| 525 |
|
| 526 |
bool is_open() const |
| 527 |
{ return this->rdbuf()->is_open(); } |
| 528 |
|
| 529 |
void open(const char* __s, ios_base::openmode __mod = ios_base::in) { |
| 530 |
if (!this->rdbuf()->open(__s, __mod | ios_base::in)) |
| 531 |
this->setstate(ios_base::failbit); |
| 532 |
} |
| 533 |
|
| 534 |
void close() { |
| 535 |
if (!this->rdbuf()->close()) |
| 536 |
this->setstate(ios_base::failbit); |
| 537 |
} |
| 538 |
|
| 539 |
private: |
| 540 |
basic_filebuf<_CharT, _Traits> _M_buf; |
| 541 |
}; |
| 542 |
|
| 543 |
|
| 544 |
//---------------------------------------------------------------------- |
| 545 |
// Class basic_ofstream<> |
| 546 |
|
| 547 |
template <class _CharT, class _Traits> |
| 548 |
class basic_ofstream : public basic_ostream<_CharT, _Traits> { |
| 549 |
public: // Types |
| 550 |
typedef _CharT char_type; |
| 551 |
typedef typename _Traits::int_type int_type; |
| 552 |
typedef typename _Traits::pos_type pos_type; |
| 553 |
typedef typename _Traits::off_type off_type; |
| 554 |
typedef _Traits traits_type; |
| 555 |
|
| 556 |
typedef basic_ios<_CharT, _Traits> _Basic_ios; |
| 557 |
typedef basic_ostream<_CharT, _Traits> _Base; |
| 558 |
typedef basic_filebuf<_CharT, _Traits> _Buf; |
| 559 |
|
| 560 |
public: // Constructors, destructor. |
| 561 |
basic_ofstream() : |
| 562 |
basic_ios<_CharT, _Traits>(), |
| 563 |
basic_ostream<_CharT, _Traits>(0), _M_buf() { |
| 564 |
this->init(&_M_buf); |
| 565 |
} |
| 566 |
explicit basic_ofstream(const char* __s, ios_base::openmode __mod = ios_base::out) |
| 567 |
: basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0), _M_buf() { |
| 568 |
this->init(&_M_buf); |
| 569 |
if (!_M_buf.open(__s, __mod | ios_base::out)) |
| 570 |
this->setstate(ios_base::failbit); |
| 571 |
} |
| 572 |
|
| 573 |
#if !defined (_STLP_NO_EXTENSIONS) |
| 574 |
explicit basic_ofstream(int __id, ios_base::openmode __mod = ios_base::out) |
| 575 |
: basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0), |
| 576 |
_M_buf() { |
| 577 |
this->init(&_M_buf); |
| 578 |
if (!_M_buf.open(__id, __mod | ios_base::out)) |
| 579 |
this->setstate(ios_base::failbit); |
| 580 |
} |
| 581 |
basic_ofstream(const char* __s, ios_base::openmode __m, long __protection) : |
| 582 |
basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0), _M_buf() { |
| 583 |
this->init(&_M_buf); |
| 584 |
if (!_M_buf.open(__s, __m | ios_base::out, __protection)) |
| 585 |
this->setstate(ios_base::failbit); |
| 586 |
} |
| 587 |
# if defined (_STLP_USE_WIN32_IO) |
| 588 |
explicit basic_ofstream(_STLP_fd __id, ios_base::openmode __mod = ios_base::out) |
| 589 |
: basic_ios<_CharT, _Traits>(), basic_ostream<_CharT, _Traits>(0), |
| 590 |
_M_buf() { |
| 591 |
this->init(&_M_buf); |
| 592 |
if (!_M_buf.open(__id, __mod | ios_base::out)) |
| 593 |
this->setstate(ios_base::failbit); |
| 594 |
} |
| 595 |
# endif /* _STLP_USE_WIN32_IO */ |
| 596 |
#endif |
| 597 |
|
| 598 |
~basic_ofstream() {} |
| 599 |
|
| 600 |
public: // File and buffer operations. |
| 601 |
basic_filebuf<_CharT, _Traits>* rdbuf() const |
| 602 |
{ return __CONST_CAST(_Buf*,&_M_buf); } |
| 603 |
|
| 604 |
bool is_open() const |
| 605 |
{ return this->rdbuf()->is_open(); } |
| 606 |
|
| 607 |
void open(const char* __s, ios_base::openmode __mod= ios_base::out) { |
| 608 |
if (!this->rdbuf()->open(__s, __mod | ios_base::out)) |
| 609 |
this->setstate(ios_base::failbit); |
| 610 |
} |
| 611 |
|
| 612 |
void close() { |
| 613 |
if (!this->rdbuf()->close()) |
| 614 |
this->setstate(ios_base::failbit); |
| 615 |
} |
| 616 |
|
| 617 |
private: |
| 618 |
basic_filebuf<_CharT, _Traits> _M_buf; |
| 619 |
}; |
| 620 |
|
| 621 |
|
| 622 |
//---------------------------------------------------------------------- |
| 623 |
// Class basic_fstream<> |
| 624 |
|
| 625 |
template <class _CharT, class _Traits> |
| 626 |
class basic_fstream : public basic_iostream<_CharT, _Traits> { |
| 627 |
public: // Types |
| 628 |
typedef _CharT char_type; |
| 629 |
typedef typename _Traits::int_type int_type; |
| 630 |
typedef typename _Traits::pos_type pos_type; |
| 631 |
typedef typename _Traits::off_type off_type; |
| 632 |
typedef _Traits traits_type; |
| 633 |
|
| 634 |
typedef basic_ios<_CharT, _Traits> _Basic_ios; |
| 635 |
typedef basic_iostream<_CharT, _Traits> _Base; |
| 636 |
typedef basic_filebuf<_CharT, _Traits> _Buf; |
| 637 |
|
| 638 |
public: // Constructors, destructor. |
| 639 |
|
| 640 |
basic_fstream() |
| 641 |
: basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() { |
| 642 |
this->init(&_M_buf); |
| 643 |
} |
| 644 |
|
| 645 |
explicit basic_fstream(const char* __s, |
| 646 |
ios_base::openmode __mod = ios_base::in | ios_base::out) : |
| 647 |
basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() { |
| 648 |
this->init(&_M_buf); |
| 649 |
if (!_M_buf.open(__s, __mod)) |
| 650 |
this->setstate(ios_base::failbit); |
| 651 |
} |
| 652 |
|
| 653 |
#if !defined (_STLP_NO_EXTENSIONS) |
| 654 |
explicit basic_fstream(int __id, |
| 655 |
ios_base::openmode __mod = ios_base::in | ios_base::out) : |
| 656 |
basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() { |
| 657 |
this->init(&_M_buf); |
| 658 |
if (!_M_buf.open(__id, __mod)) |
| 659 |
this->setstate(ios_base::failbit); |
| 660 |
} |
| 661 |
basic_fstream(const char* __s, ios_base::openmode __m, long __protection) : |
| 662 |
basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() { |
| 663 |
this->init(&_M_buf); |
| 664 |
if (!_M_buf.open(__s, __m, __protection)) |
| 665 |
this->setstate(ios_base::failbit); |
| 666 |
} |
| 667 |
# if defined (_STLP_USE_WIN32_IO) |
| 668 |
explicit basic_fstream(_STLP_fd __id, |
| 669 |
ios_base::openmode __mod = ios_base::in | ios_base::out) : |
| 670 |
basic_ios<_CharT, _Traits>(), basic_iostream<_CharT, _Traits>(0), _M_buf() { |
| 671 |
this->init(&_M_buf); |
| 672 |
if (!_M_buf.open(__id, __mod)) |
| 673 |
this->setstate(ios_base::failbit); |
| 674 |
} |
| 675 |
# endif /* _STLP_USE_WIN32_IO */ |
| 676 |
#endif |
| 677 |
~basic_fstream() {} |
| 678 |
|
| 679 |
public: // File and buffer operations. |
| 680 |
|
| 681 |
basic_filebuf<_CharT, _Traits>* rdbuf() const |
| 682 |
{ return __CONST_CAST(_Buf*,&_M_buf); } |
| 683 |
|
| 684 |
bool is_open() const |
| 685 |
{ return this->rdbuf()->is_open(); } |
| 686 |
|
| 687 |
void open(const char* __s, |
| 688 |
ios_base::openmode __mod = |
| 689 |
ios_base::in | ios_base::out) { |
| 690 |
if (!this->rdbuf()->open(__s, __mod)) |
| 691 |
this->setstate(ios_base::failbit); |
| 692 |
} |
| 693 |
|
| 694 |
void close() { |
| 695 |
if (!this->rdbuf()->close()) |
| 696 |
this->setstate(ios_base::failbit); |
| 697 |
} |
| 698 |
|
| 699 |
private: |
| 700 |
basic_filebuf<_CharT, _Traits> _M_buf; |
| 701 |
|
| 702 |
#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310) |
| 703 |
typedef basic_fstream<_CharT, _Traits> _Self; |
| 704 |
//explicitely defined as private to avoid warnings: |
| 705 |
basic_fstream(_Self const&); |
| 706 |
_Self& operator = (_Self const&); |
| 707 |
#endif |
| 708 |
}; |
| 709 |
|
| 710 |
#ifdef __SUNPRO_CC |
| 711 |
#pragma enable_warn |
| 712 |
#endif |
| 713 |
|
| 714 |
_STLP_END_NAMESPACE |
| 715 |
|
| 716 |
#if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) |
| 717 |
# include <stl/_fstream.c> |
| 718 |
#endif |
| 719 |
|
| 720 |
_STLP_BEGIN_NAMESPACE |
| 721 |
|
| 722 |
#if defined (_STLP_USE_TEMPLATE_EXPORT) |
| 723 |
_STLP_EXPORT_TEMPLATE_CLASS basic_ifstream<char, char_traits<char> >; |
| 724 |
_STLP_EXPORT_TEMPLATE_CLASS basic_ofstream<char, char_traits<char> >; |
| 725 |
_STLP_EXPORT_TEMPLATE_CLASS basic_fstream<char, char_traits<char> >; |
| 726 |
# if ! defined (_STLP_NO_WCHAR_T) |
| 727 |
_STLP_EXPORT_TEMPLATE_CLASS basic_ifstream<wchar_t, char_traits<wchar_t> >; |
| 728 |
_STLP_EXPORT_TEMPLATE_CLASS basic_ofstream<wchar_t, char_traits<wchar_t> >; |
| 729 |
_STLP_EXPORT_TEMPLATE_CLASS basic_fstream<wchar_t, char_traits<wchar_t> >; |
| 730 |
# endif |
| 731 |
#endif /* _STLP_USE_TEMPLATE_EXPORT */ |
| 732 |
|
| 733 |
_STLP_END_NAMESPACE |
| 734 |
|
| 735 |
#if (_STLP_OUTERMOST_HEADER_ID == 0x1025) |
| 736 |
# include <stl/_epilog.h> |
| 737 |
# undef _STLP_OUTERMOST_HEADER_ID |
| 738 |
# if defined (__DMC__) && defined (_DLL) |
| 739 |
# undef _STLP_CLASS_IMPORT_DECLSPEC |
| 740 |
# define _STLP_CLASS_IMPORT_DECLSPEC |
| 741 |
# endif |
| 742 |
#endif |
| 743 |
|
| 744 |
#endif /* _STLP_FSTREAM */ |
| 745 |
|
| 746 |
// Local Variables: |
| 747 |
// mode:C++ |
| 748 |
// End: |