author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 15:26:22 +0300 | |
changeset 34 | 5fae379060a7 |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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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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#ifndef _STLP_INTERNAL_IOS_H |
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#define _STLP_INTERNAL_IOS_H |
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#ifndef _STLP_IOS_BASE_H |
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# include <stl/_ios_base.h> |
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#endif |
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#ifndef _STLP_INTERNAL_CTYPE_H |
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# include <stl/_ctype.h> |
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#endif |
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#ifndef _STLP_INTERNAL_NUMPUNCT_H |
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# include <stl/_numpunct.h> |
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#endif |
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_STLP_BEGIN_NAMESPACE |
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// ---------------------------------------------------------------------- |
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// Class basic_ios, a subclass of ios_base. The only important difference |
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// between the two is that basic_ios is a class template, parameterized |
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// by the character type. ios_base exists to factor out all of the |
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// common properties that don't depend on the character type. |
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// The second template parameter, _Traits, defaults to char_traits<_CharT>. |
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// The default is declared in header <iosfwd>, and it isn't declared here |
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// because C++ language rules do not allow it to be declared twice. |
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template <class _CharT, class _Traits> |
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class basic_ios : public ios_base { |
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friend class ios_base; |
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public: // Synonyms for 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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public: // Constructor, destructor. |
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explicit basic_ios(basic_streambuf<_CharT, _Traits>* __streambuf); |
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virtual ~basic_ios() {} |
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public: // Members from clause 27.4.4.2 |
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basic_ostream<_CharT, _Traits>* tie() const { |
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return _M_tied_ostream; |
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} |
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basic_ostream<_CharT, _Traits>* |
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tie(basic_ostream<char_type, traits_type>* __new_tied_ostream) { |
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basic_ostream<char_type, traits_type>* __tmp = _M_tied_ostream; |
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_M_tied_ostream = __new_tied_ostream; |
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return __tmp; |
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} |
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basic_streambuf<_CharT, _Traits>* rdbuf() const |
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{ return _M_streambuf; } |
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basic_streambuf<_CharT, _Traits>* |
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rdbuf(basic_streambuf<char_type, traits_type>*); |
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// Copies __x's state to *this. |
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basic_ios<_CharT, _Traits>& copyfmt(const basic_ios<_CharT, _Traits>& __x); |
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char_type fill() const { return _M_fill; } |
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char_type fill(char_type __fill) { |
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char_type __tmp(_M_fill); |
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_M_fill = __fill; |
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return __tmp; |
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} |
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public: // Members from 27.4.4.3. These four functions |
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// can almost be defined in ios_base. |
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void clear(iostate __state = goodbit) { |
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_M_clear_nothrow(this->rdbuf() ? __state : iostate(__state|ios_base::badbit)); |
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_M_check_exception_mask(); |
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} |
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void setstate(iostate __state) { this->clear(rdstate() | __state); } |
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iostate exceptions() const { return this->_M_get_exception_mask(); } |
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void exceptions(iostate __mask) { |
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this->_M_set_exception_mask(__mask); |
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this->clear(this->rdstate()); |
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} |
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public: // Locale-related member functions. |
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locale imbue(const locale&); |
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inline char narrow(_CharT, char) const ; |
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inline _CharT widen(char) const; |
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// Helper function that makes testing for EOF more convenient. |
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static bool _STLP_CALL _S_eof(int_type __c) { |
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const int_type __eof = _Traits::eof(); |
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return _Traits::eq_int_type(__c, __eof); |
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} |
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protected: |
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basic_ios(); |
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void init(basic_streambuf<_CharT, _Traits>* __streambuf); |
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public: |
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// Helper function used in istream and ostream. It is called only from |
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// a catch clause. |
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void _M_handle_exception(ios_base::iostate __flag); |
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private: // Data members |
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char_type _M_fill; // The fill character, used for padding. |
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basic_streambuf<_CharT, _Traits>* _M_streambuf; |
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basic_ostream<_CharT, _Traits>* _M_tied_ostream; |
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}; |
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template <class _CharT, class _Traits> |
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inline char |
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basic_ios<_CharT, _Traits>::narrow(_CharT __c, char __default) const |
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{ return __STATIC_CAST(const ctype<_CharT>*, this->_M_ctype_facet())->narrow(__c, __default); } |
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template <class _CharT, class _Traits> |
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inline _CharT |
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basic_ios<_CharT, _Traits>::widen(char __c) const |
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{ return __STATIC_CAST(const ctype<_CharT>*, this->_M_ctype_facet())->widen(__c); } |
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# if !defined (_STLP_NO_METHOD_SPECIALIZATION) |
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_STLP_TEMPLATE_NULL |
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inline char |
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basic_ios<char, char_traits<char> >::narrow(char __c, char) const |
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{ |
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return __c; |
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} |
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_STLP_TEMPLATE_NULL |
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inline char |
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basic_ios<char, char_traits<char> >::widen(char __c) const |
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{ |
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return __c; |
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} |
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# endif /* _STLP_NO_METHOD_SPECIALIZATION */ |
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# if defined (_STLP_USE_TEMPLATE_EXPORT) |
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_STLP_EXPORT_TEMPLATE_CLASS basic_ios<char, char_traits<char> >; |
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# if ! defined (_STLP_NO_WCHAR_T) |
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_STLP_EXPORT_TEMPLATE_CLASS basic_ios<wchar_t, char_traits<wchar_t> >; |
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# endif |
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# endif /* _STLP_USE_TEMPLATE_EXPORT */ |
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_STLP_END_NAMESPACE |
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#if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION) |
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# include <stl/_ios.c> |
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#endif |
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#endif /* _STLP_IOS */ |
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// Local Variables: |
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// mode:C++ |
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// End: |
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