epoc32/include/stdapis/stlport/stl/_sstream.h
branchSymbian3
changeset 4 837f303aceeb
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/epoc32/include/stdapis/stlport/stl/_sstream.h	Wed Mar 31 12:33:34 2010 +0100
     1.3 @@ -0,0 +1,273 @@
     1.4 +/*
     1.5 + * © Portions copyright (c) 2006-2007 Nokia Corporation.  All rights reserved.
     1.6 + * Copyright (c) 1999
     1.7 + * Silicon Graphics Computer Systems, Inc.
     1.8 + *
     1.9 + * Copyright (c) 1999 
    1.10 + * Boris Fomitchev
    1.11 + *
    1.12 + * This material is provided "as is", with absolutely no warranty expressed
    1.13 + * or implied. Any use is at your own risk.
    1.14 + *
    1.15 + * Permission to use or copy this software for any purpose is hereby granted 
    1.16 + * without fee, provided the above notices are retained on all copies.
    1.17 + * Permission to modify the code and to distribute modified code is granted,
    1.18 + * provided the above notices are retained, and a notice that the code was
    1.19 + * modified is included with the above copyright notice.
    1.20 + *
    1.21 + */ 
    1.22 +
    1.23 +
    1.24 +// This header defines classes basic_stringbuf, basic_istringstream,
    1.25 +// basic_ostringstream, and basic_stringstream.  These classes 
    1.26 +// represent streamsbufs and streams whose sources or destinations are
    1.27 +// C++ strings.
    1.28 +
    1.29 +#ifndef _STLP_SSTREAM_H
    1.30 +#define _STLP_SSTREAM_H
    1.31 +
    1.32 +#ifndef _STLP_INTERNAL_STREAMBUF
    1.33 +# include <stl/_streambuf.h>
    1.34 +#endif
    1.35 +
    1.36 +#ifndef _STLP_INTERNAL_ISTREAM_H
    1.37 +# include <stl/_istream.h> // Includes <ostream>, <ios>, <iosfwd>
    1.38 +#endif
    1.39 +
    1.40 +#ifndef _STLP_STRING_H
    1.41 +# include <stl/_string.h>
    1.42 +#endif
    1.43 +
    1.44 +_STLP_BEGIN_NAMESPACE
    1.45 +
    1.46 +//----------------------------------------------------------------------
    1.47 +// This version of basic_stringbuf relies on the internal details of
    1.48 +// basic_string.  It relies on the fact that, in this implementation,
    1.49 +// basic_string's iterators are pointers.  It also assumes (as allowed
    1.50 +// by the standard) that _CharT is a POD type.
    1.51 +
    1.52 +// We have a very small buffer for the put area, just so that we don't
    1.53 +// have to use append() for every sputc.  Conceptually, the buffer
    1.54 +// immediately follows the end of the underlying string.  We use this
    1.55 +// buffer when appending to write-only streambufs, but we don't use it
    1.56 +// for read-write streambufs.
    1.57 +
    1.58 +template <class _CharT, class _Traits, class _Alloc>
    1.59 +#ifdef __SYMBIAN32__
    1.60 +NONSHARABLE_CLASS ( basic_stringbuf ) : public basic_streambuf<_CharT, _Traits>
    1.61 +#else
    1.62 +class basic_stringbuf : public basic_streambuf<_CharT, _Traits>
    1.63 +#endif
    1.64 +{
    1.65 +public:                         // Typedefs.
    1.66 +  typedef _CharT                     char_type;
    1.67 +  typedef typename _Traits::int_type int_type;
    1.68 +  typedef typename _Traits::pos_type pos_type;
    1.69 +  typedef typename _Traits::off_type off_type;
    1.70 +  typedef _Traits                    traits_type;
    1.71 +
    1.72 +  typedef basic_streambuf<_CharT, _Traits>          _Base;
    1.73 +  typedef basic_stringbuf<_CharT, _Traits, _Alloc>  _Self;
    1.74 +  typedef basic_string<_CharT, _Traits, _Alloc>     _String;
    1.75 +
    1.76 +public:                         // Constructors, destructor.
    1.77 +  _STLP_DECLSPEC explicit basic_stringbuf(ios_base::openmode __mode
    1.78 +                                      = ios_base::in | ios_base::out);
    1.79 +  _STLP_DECLSPEC explicit basic_stringbuf(const _String& __s, ios_base::openmode __mode
    1.80 +                                      = ios_base::in | ios_base::out);
    1.81 +  _STLP_DECLSPEC virtual ~basic_stringbuf();
    1.82 +
    1.83 +public:                         // Get or set the string.
    1.84 +  _String str() const { 
    1.85 +      if ( _M_mode & ios_base::out )
    1.86 +           _M_append_buffer();
    1.87 +      return _M_str; 
    1.88 +   }
    1.89 +  _STLP_DECLSPEC void str(const _String& __s);
    1.90 +
    1.91 +protected:                      // Overridden virtual member functions.
    1.92 +  virtual int_type underflow();
    1.93 +  virtual int_type uflow();
    1.94 +  virtual int_type pbackfail(int_type __c);
    1.95 +  virtual int_type overflow(int_type __c);
    1.96 +  int_type pbackfail() {return pbackfail(_Traits::eof());}
    1.97 +  int_type overflow() {return overflow(_Traits::eof());}
    1.98 +
    1.99 +  virtual streamsize xsputn(const char_type* __s, streamsize __n);
   1.100 +  virtual streamsize _M_xsputnc(char_type __c, streamsize __n);
   1.101 +
   1.102 +  virtual _Base* setbuf(_CharT* __buf, streamsize __n);
   1.103 +  virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,
   1.104 +                           ios_base::openmode __mode 
   1.105 +                                      = ios_base::in | ios_base::out);
   1.106 +  virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode 
   1.107 +                                      = ios_base::in | ios_base::out);
   1.108 +  ios_base::openmode _M_mode;
   1.109 +
   1.110 +private:                        // Helper functions.
   1.111 +  // Append the internal buffer to the string if necessary.
   1.112 +  void _M_append_buffer() const;
   1.113 +  void _M_set_ptrs();
   1.114 +
   1.115 +private:
   1.116 +  mutable basic_string<_CharT, _Traits, _Alloc> _M_str;
   1.117 +
   1.118 +  enum _JustName { _S_BufSiz = 8 };
   1.119 +  _CharT _M_Buf[ 8 /* _S_BufSiz */];
   1.120 +};
   1.121 +
   1.122 +# if defined (_STLP_USE_TEMPLATE_EXPORT)
   1.123 +_STLP_EXPORT_TEMPLATE_CLASS basic_stringbuf<char, char_traits<char>, allocator<char> >;
   1.124 +#  if !defined (_STLP_NO_WCHAR_T)
   1.125 +_STLP_EXPORT_TEMPLATE_CLASS basic_stringbuf<wchar_t, char_traits<wchar_t>, allocator<wchar_t>  >;
   1.126 +#  endif
   1.127 +# endif /* _STLP_USE_TEMPLATE_EXPORT */
   1.128 +
   1.129 +//----------------------------------------------------------------------
   1.130 +// Class basic_istringstream, an input stream that uses a stringbuf.
   1.131 +
   1.132 +template <class _CharT, class _Traits, class _Alloc>
   1.133 +#ifdef __SYMBIAN32__
   1.134 +NONSHARABLE_CLASS ( basic_istringstream ) : public basic_istream<_CharT, _Traits>
   1.135 +#else
   1.136 +class basic_istringstream : public basic_istream<_CharT, _Traits>
   1.137 +#endif
   1.138 +{
   1.139 +public:                         // Typedefs
   1.140 +  typedef typename _Traits::char_type   char_type;
   1.141 +  typedef typename _Traits::int_type    int_type;
   1.142 +  typedef typename _Traits::pos_type    pos_type;
   1.143 +  typedef typename _Traits::off_type    off_type;
   1.144 +  typedef _Traits traits_type;
   1.145 +
   1.146 +  typedef basic_ios<_CharT, _Traits>                _Basic_ios;
   1.147 +  typedef basic_istream<_CharT, _Traits>            _Base;
   1.148 +  typedef basic_string<_CharT, _Traits, _Alloc>     _String;
   1.149 +  typedef basic_stringbuf<_CharT, _Traits, _Alloc>  _Buf;
   1.150 +
   1.151 +public:                         // Constructors, destructor.
   1.152 +  basic_istringstream(ios_base::openmode __mode = ios_base::in);
   1.153 +  basic_istringstream(const _String& __str,
   1.154 +                      ios_base::openmode __mode = ios_base::in);
   1.155 +  ~basic_istringstream();
   1.156 +
   1.157 +public:                         // Member functions
   1.158 +
   1.159 +  basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
   1.160 +    { return __CONST_CAST(_Buf*,&_M_buf); }
   1.161 +
   1.162 +  _String str() const { return _M_buf.str(); }
   1.163 +  void str(const _String& __s) { _M_buf.str(__s); }
   1.164 +  
   1.165 +private:
   1.166 +  basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
   1.167 +};
   1.168 +
   1.169 +
   1.170 +//----------------------------------------------------------------------
   1.171 +// Class basic_ostringstream, an output stream that uses a stringbuf.
   1.172 +
   1.173 +template <class _CharT, class _Traits, class _Alloc>
   1.174 +#ifdef __SYMBIAN32__
   1.175 +NONSHARABLE_CLASS ( basic_ostringstream ) : public basic_ostream<_CharT, _Traits>
   1.176 +#else
   1.177 +class basic_ostringstream : public basic_ostream<_CharT, _Traits>
   1.178 +#endif
   1.179 +{
   1.180 +public:                         // Typedefs
   1.181 +  typedef typename _Traits::char_type   char_type;
   1.182 +  typedef typename _Traits::int_type    int_type;
   1.183 +  typedef typename _Traits::pos_type    pos_type;
   1.184 +  typedef typename _Traits::off_type    off_type;
   1.185 +  typedef _Traits traits_type;
   1.186 +
   1.187 +  typedef basic_ios<_CharT, _Traits>                _Basic_ios;
   1.188 +  typedef basic_ostream<_CharT, _Traits>            _Base;
   1.189 +  typedef basic_string<_CharT, _Traits, _Alloc>     _String;
   1.190 +  typedef basic_stringbuf<_CharT, _Traits, _Alloc>  _Buf;
   1.191 +
   1.192 +public:                         // Constructors, destructor.
   1.193 +  basic_ostringstream(ios_base::openmode __mode = ios_base::out);
   1.194 +  basic_ostringstream(const _String& __str,
   1.195 +                      ios_base::openmode __mode = ios_base::out);
   1.196 +  ~basic_ostringstream();
   1.197 +
   1.198 +public:                         // Member functions.
   1.199 +
   1.200 +  basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
   1.201 +    { return __CONST_CAST(_Buf*,&_M_buf); }
   1.202 +
   1.203 +  _String str() const { return _M_buf.str(); }
   1.204 +    void str(const _String& __s) { _M_buf.str(__s); } // dwa 02/07/00 - BUG STOMPER DAVE
   1.205 +
   1.206 +
   1.207 +private:
   1.208 +  basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
   1.209 +};
   1.210 +
   1.211 +
   1.212 +//----------------------------------------------------------------------
   1.213 +// Class basic_stringstream, a bidirectional stream that uses a stringbuf.
   1.214 +
   1.215 +template <class _CharT, class _Traits, class _Alloc>
   1.216 +#ifdef __SYMBIAN32__
   1.217 +NONSHARABLE_CLASS ( basic_stringstream ) : public basic_iostream<_CharT, _Traits>
   1.218 +#else
   1.219 +class basic_stringstream : public basic_iostream<_CharT, _Traits>
   1.220 +#endif
   1.221 +{
   1.222 +public:                         // Typedefs
   1.223 +  typedef typename _Traits::char_type char_type;
   1.224 +  typedef typename _Traits::int_type  int_type;
   1.225 +  typedef typename _Traits::pos_type  pos_type;
   1.226 +  typedef typename _Traits::off_type  off_type;
   1.227 +  typedef _Traits  traits_type;
   1.228 +
   1.229 +  typedef basic_ios<_CharT, _Traits>                 _Basic_ios;
   1.230 +  typedef basic_iostream<_CharT, _Traits>            _Base;
   1.231 +  typedef basic_string<_CharT, _Traits, _Alloc>      _String;
   1.232 +  typedef basic_stringbuf<_CharT, _Traits, _Alloc>  _Buf;
   1.233 +  
   1.234 +  typedef ios_base::openmode openmode;
   1.235 +
   1.236 +public:                         // Constructors, destructor.
   1.237 +  _STLP_DECLSPEC basic_stringstream(openmode __mod = ios_base::in | ios_base::out);
   1.238 +  _STLP_DECLSPEC basic_stringstream(const _String& __str,
   1.239 +                     openmode __mod = ios_base::in | ios_base::out);
   1.240 +  ~basic_stringstream();
   1.241 +
   1.242 +public:                         // Member functions.
   1.243 +
   1.244 +  basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
   1.245 +    { return __CONST_CAST(_Buf*,&_M_buf); }
   1.246 +
   1.247 +  _String str() const { return _M_buf.str(); }
   1.248 +    void str(const _String& __s) { _M_buf.str(__s); }
   1.249 +
   1.250 +private:
   1.251 +  basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
   1.252 +};
   1.253 +
   1.254 +
   1.255 +# if defined (_STLP_USE_TEMPLATE_EXPORT)
   1.256 +_STLP_EXPORT_TEMPLATE_CLASS basic_istringstream<char, char_traits<char>, allocator<char> >;
   1.257 +_STLP_EXPORT_TEMPLATE_CLASS basic_ostringstream<char, char_traits<char>, allocator<char> >;
   1.258 +_STLP_EXPORT_TEMPLATE_CLASS basic_stringstream<char, char_traits<char>, allocator<char> >;
   1.259 +#  if !defined (_STLP_NO_WCHAR_T)
   1.260 +_STLP_EXPORT_TEMPLATE_CLASS basic_istringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t>  >;
   1.261 +_STLP_EXPORT_TEMPLATE_CLASS basic_ostringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t>  >;
   1.262 +_STLP_EXPORT_TEMPLATE_CLASS basic_stringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t>  >;
   1.263 +#  endif
   1.264 +# endif /* _STLP_USE_TEMPLATE_EXPORT */
   1.265 +
   1.266 +_STLP_END_NAMESPACE
   1.267 +
   1.268 +# if  defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION)
   1.269 +#  include <stl/_sstream.c>
   1.270 +# endif
   1.271 +
   1.272 +#endif /* _STLP_SSTREAM_H */
   1.273 +
   1.274 +// Local Variables:
   1.275 +// mode:C++
   1.276 +// End: