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Jose Caban
266
extern/STLport/5.2.1/stlport/stl/_sstream.h
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extern/STLport/5.2.1/stlport/stl/_sstream.h
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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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// This header defines classes basic_stringbuf, basic_istringstream,
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// basic_ostringstream, and basic_stringstream. These classes
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// represent streamsbufs and streams whose sources or destinations are
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// C++ strings.
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#ifndef _STLP_INTERNAL_SSTREAM
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#define _STLP_INTERNAL_SSTREAM
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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> // Includes <ostream>, <ios>, <iosfwd>
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#endif
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#ifndef _STLP_INTERNAL_STRING_H
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# include <stl/_string.h>
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#endif
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_STLP_BEGIN_NAMESPACE
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//----------------------------------------------------------------------
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// This version of basic_stringbuf relies on the internal details of
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// basic_string. It relies on the fact that, in this implementation,
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// basic_string's iterators are pointers. It also assumes (as allowed
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// by the standard) that _CharT is a POD type.
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// We have a very small buffer for the put area, just so that we don't
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// have to use append() for every sputc. Conceptually, the buffer
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// immediately follows the end of the underlying string. We use this
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// buffer when appending to write-only streambufs, but we don't use it
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// for read-write streambufs.
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template <class _CharT, class _Traits, class _Alloc>
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class basic_stringbuf : public basic_streambuf<_CharT, _Traits> {
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public: // Typedefs.
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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_streambuf<_CharT, _Traits> _Base;
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typedef basic_stringbuf<_CharT, _Traits, _Alloc> _Self;
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typedef basic_string<_CharT, _Traits, _Alloc> _String;
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public: // Constructors, destructor.
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explicit basic_stringbuf(ios_base::openmode __mode
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= ios_base::in | ios_base::out);
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explicit basic_stringbuf(const _String& __s, ios_base::openmode __mode
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= ios_base::in | ios_base::out);
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virtual ~basic_stringbuf();
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public: // Get or set the string.
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_String str() const { return _M_str; }
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void str(const _String& __s);
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protected: // Overridden virtual member functions.
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virtual int_type underflow();
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virtual int_type uflow();
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virtual int_type pbackfail(int_type __c);
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virtual int_type overflow(int_type __c);
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int_type pbackfail() {return pbackfail(_Traits::eof());}
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int_type overflow() {return overflow(_Traits::eof());}
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virtual streamsize xsputn(const char_type* __s, streamsize __n);
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virtual streamsize _M_xsputnc(char_type __c, streamsize __n);
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virtual _Base* setbuf(_CharT* __buf, streamsize __n);
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virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,
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ios_base::openmode __mode
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= ios_base::in | ios_base::out);
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virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode
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= ios_base::in | ios_base::out);
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private: // Helper functions.
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void _M_set_ptrs();
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static _CharT* _S_start(const _String& __str) { return __CONST_CAST(_CharT*, __str.data()); }
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static _CharT* _S_finish(const _String& __str) { return __CONST_CAST(_CharT*, __str.data()) + __str.size(); }
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private:
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ios_base::openmode _M_mode;
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_String _M_str;
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};
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#if defined (_STLP_USE_TEMPLATE_EXPORT)
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_STLP_EXPORT_TEMPLATE_CLASS basic_stringbuf<char, char_traits<char>, allocator<char> >;
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# if !defined (_STLP_NO_WCHAR_T)
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_STLP_EXPORT_TEMPLATE_CLASS basic_stringbuf<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >;
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# endif
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#endif /* _STLP_USE_TEMPLATE_EXPORT */
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//----------------------------------------------------------------------
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// Class basic_istringstream, an input stream that uses a stringbuf.
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template <class _CharT, class _Traits, class _Alloc>
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class basic_istringstream : public basic_istream<_CharT, _Traits> {
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public: // Typedefs
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typedef typename _Traits::char_type 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_string<_CharT, _Traits, _Alloc> _String;
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typedef basic_stringbuf<_CharT, _Traits, _Alloc> _Buf;
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public: // Constructors, destructor.
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basic_istringstream(ios_base::openmode __mode = ios_base::in);
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basic_istringstream(const _String& __str,
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ios_base::openmode __mode = ios_base::in);
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~basic_istringstream();
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public: // Member functions
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basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
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{ return __CONST_CAST(_Buf*,&_M_buf); }
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_String str() const { return _M_buf.str(); }
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void str(const _String& __s) { _M_buf.str(__s); }
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private:
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basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
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#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
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typedef basic_istringstream<_CharT, _Traits> _Self;
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//explicitely defined as private to avoid warnings:
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basic_istringstream(_Self const&);
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_Self& operator = (_Self const&);
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#endif
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};
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//----------------------------------------------------------------------
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// Class basic_ostringstream, an output stream that uses a stringbuf.
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template <class _CharT, class _Traits, class _Alloc>
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class basic_ostringstream : public basic_ostream<_CharT, _Traits> {
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public: // Typedefs
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typedef typename _Traits::char_type 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_ostream<_CharT, _Traits> _Base;
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typedef basic_string<_CharT, _Traits, _Alloc> _String;
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typedef basic_stringbuf<_CharT, _Traits, _Alloc> _Buf;
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public: // Constructors, destructor.
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basic_ostringstream(ios_base::openmode __mode = ios_base::out);
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basic_ostringstream(const _String& __str,
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ios_base::openmode __mode = ios_base::out);
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~basic_ostringstream();
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public: // Member functions.
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basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
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{ return __CONST_CAST(_Buf*,&_M_buf); }
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_String str() const { return _M_buf.str(); }
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void str(const _String& __s) { _M_buf.str(__s); } // dwa 02/07/00 - BUG STOMPER DAVE
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private:
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basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
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#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
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typedef basic_ostringstream<_CharT, _Traits> _Self;
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//explicitely defined as private to avoid warnings:
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basic_ostringstream(_Self const&);
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_Self& operator = (_Self const&);
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#endif
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};
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//----------------------------------------------------------------------
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// Class basic_stringstream, a bidirectional stream that uses a stringbuf.
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template <class _CharT, class _Traits, class _Alloc>
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class basic_stringstream : public basic_iostream<_CharT, _Traits> {
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public: // Typedefs
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typedef typename _Traits::char_type 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_iostream<_CharT, _Traits> _Base;
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typedef basic_string<_CharT, _Traits, _Alloc> _String;
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typedef basic_stringbuf<_CharT, _Traits, _Alloc> _Buf;
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typedef ios_base::openmode openmode;
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public: // Constructors, destructor.
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basic_stringstream(openmode __mod = ios_base::in | ios_base::out);
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basic_stringstream(const _String& __str,
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openmode __mod = ios_base::in | ios_base::out);
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~basic_stringstream();
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public: // Member functions.
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basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
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{ return __CONST_CAST(_Buf*,&_M_buf); }
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_String str() const { return _M_buf.str(); }
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void str(const _String& __s) { _M_buf.str(__s); }
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private:
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basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
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#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
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typedef basic_stringstream<_CharT, _Traits> _Self;
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//explicitely defined as private to avoid warnings:
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basic_stringstream(_Self const&);
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_Self& operator = (_Self const&);
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#endif
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};
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#if defined (_STLP_USE_TEMPLATE_EXPORT)
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_STLP_EXPORT_TEMPLATE_CLASS basic_istringstream<char, char_traits<char>, allocator<char> >;
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_STLP_EXPORT_TEMPLATE_CLASS basic_ostringstream<char, char_traits<char>, allocator<char> >;
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_STLP_EXPORT_TEMPLATE_CLASS basic_stringstream<char, char_traits<char>, allocator<char> >;
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# if !defined (_STLP_NO_WCHAR_T)
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_STLP_EXPORT_TEMPLATE_CLASS basic_istringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >;
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_STLP_EXPORT_TEMPLATE_CLASS basic_ostringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >;
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_STLP_EXPORT_TEMPLATE_CLASS basic_stringstream<wchar_t, char_traits<wchar_t>, allocator<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/_sstream.c>
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#endif
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#endif /* _STLP_INTERNAL_SSTREAM */
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// Local Variables:
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// mode:C++
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// End:
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