1.1 --- a/epoc32/include/stdapis/stlport/stl/_streambuf.h Tue Mar 16 16:12:26 2010 +0000
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,537 +0,0 @@
1.4 -/*
1.5 - * © Portions copyright (c) 2006-2007 Nokia Corporation. All rights reserved.
1.6 - *
1.7 - * Copyright (c) 1999
1.8 - * Silicon Graphics Computer Systems, Inc.
1.9 - *
1.10 - * Copyright (c) 1999
1.11 - * Boris Fomitchev
1.12 - *
1.13 - * This material is provided "as is", with absolutely no warranty expressed
1.14 - * or implied. Any use is at your own risk.
1.15 - *
1.16 - * Permission to use or copy this software for any purpose is hereby granted
1.17 - * without fee, provided the above notices are retained on all copies.
1.18 - * Permission to modify the code and to distribute modified code is granted,
1.19 - * provided the above notices are retained, and a notice that the code was
1.20 - * modified is included with the above copyright notice.
1.21 - *
1.22 - */
1.23 -#ifndef _STLP_INTERNAL_STREAMBUF
1.24 -#define _STLP_INTERNAL_STREAMBUF
1.25 -
1.26 -#ifndef _STLP_IOS_BASE_H
1.27 -#include <stl/_ios_base.h> // Needed for ios_base bitfield members.
1.28 - // <ios_base> includes <iosfwd>.
1.29 -#endif
1.30 -
1.31 -#ifndef _STLP_STDIO_FILE_H
1.32 -#include <stl/_stdio_file.h> // Declaration of struct FILE, and of
1.33 - // functions to manipulate it.
1.34 -#endif
1.35 -
1.36 -_STLP_BEGIN_NAMESPACE
1.37 -
1.38 -//----------------------------------------------------------------------
1.39 -// Class basic_streambuf<>, the base class of the streambuf hierarchy.
1.40 -
1.41 -// A basic_streambuf<> manages an input (get) area and an output (put)
1.42 -// area. Each is described by three pointers: a beginning, an end, and a
1.43 -// current position. basic_streambuf<> contains some very simple member
1.44 -// functions that manipulate those six pointers, but almost all of the real
1.45 -// functionality gets delegated to protected virtual member functions.
1.46 -// All of the public member functions are inline, and most of the protected
1.47 -// member functions are virtual.
1.48 -
1.49 -// Although basic_streambuf<> is not abstract, it is useful only as a base
1.50 -// class. Its virtual member functions have default definitions such that
1.51 -// reading from a basic_streambuf<> will always yield EOF, and writing to a
1.52 -// basic_streambuf<> will always fail.
1.53 -
1.54 -// The second template parameter, _Traits, defaults to char_traits<_CharT>.
1.55 -// The default is declared in header <iosfwd>, and it isn't declared here
1.56 -// because C++ language rules do not allow it to be declared twice.
1.57 -
1.58 -template <class _CharT, class _Traits>
1.59 -#ifdef __SYMBIAN32__
1.60 -class basic_streambuf
1.61 -#else
1.62 -class basic_streambuf
1.63 -#endif
1.64 -{
1.65 - friend class basic_istream<_CharT, _Traits>;
1.66 - friend class basic_ostream<_CharT, _Traits>;
1.67 -
1.68 -public: // Typedefs.
1.69 - typedef _CharT char_type;
1.70 - typedef typename _Traits::int_type int_type;
1.71 - typedef typename _Traits::pos_type pos_type;
1.72 - typedef typename _Traits::off_type off_type;
1.73 - typedef _Traits traits_type;
1.74 -
1.75 -private: // Data members.
1.76 -
1.77 - char_type* _M_gbegin; // Beginning of get area
1.78 - char_type* _M_gnext; // Current position within the get area
1.79 - char_type* _M_gend; // End of get area
1.80 -
1.81 - char_type* _M_pbegin; // Beginning of put area
1.82 - char_type* _M_pnext; // Current position within the put area
1.83 - char_type* _M_pend; // End of put area
1.84 -
1.85 - locale _M_locale; // The streambuf's locale object
1.86 -
1.87 -public: // Extension: locking, for thread safety.
1.88 - _STLP_mutex _M_lock;
1.89 -
1.90 -public: // Destructor.
1.91 - _STLP_DECLSPEC virtual ~basic_streambuf();
1.92 -
1.93 -protected: // The default constructor.
1.94 - _STLP_DECLSPEC basic_streambuf();
1.95 -
1.96 -protected: // Protected interface to the get area.
1.97 - char_type* eback() const { return _M_gbegin; } // Beginning
1.98 - char_type* gptr() const { return _M_gnext; } // Current position
1.99 - char_type* egptr() const { return _M_gend; } // End
1.100 -
1.101 - void gbump(int __n) { _M_gnext += __n; }
1.102 - void setg(char_type* __gbegin, char_type* __gnext, char_type* __gend) {
1.103 - _M_gbegin = __gbegin;
1.104 - _M_gnext = __gnext;
1.105 - _M_gend = __gend;
1.106 - }
1.107 -
1.108 -public:
1.109 - // An alternate public interface to the above functions
1.110 - // which allows us to avoid using templated friends which
1.111 - // are not supported on some compilers.
1.112 -
1.113 - char_type* _M_eback() const { return eback(); }
1.114 - char_type* _M_gptr() const { return gptr(); }
1.115 - char_type* _M_egptr() const { return egptr(); }
1.116 - void _M_gbump(int __n) { gbump(__n); }
1.117 - void _M_setg(char_type* __gbegin, char_type* __gnext, char_type* __gend)
1.118 - { setg(__gbegin, __gnext, __gend); }
1.119 -
1.120 -protected: // Protected interface to the put area
1.121 -
1.122 - char_type* pbase() const { return _M_pbegin; } // Beginning
1.123 - char_type* pptr() const { return _M_pnext; } // Current position
1.124 - char_type* epptr() const { return _M_pend; } // End
1.125 -
1.126 - void pbump(int __n) { _M_pnext += __n; }
1.127 - void setp(char_type* __pbegin, char_type* __pend) {
1.128 - _M_pbegin = __pbegin;
1.129 - _M_pnext = __pbegin;
1.130 - _M_pend = __pend;
1.131 - }
1.132 -
1.133 -protected: // Virtual buffer management functions.
1.134 -
1.135 - _STLP_DECLSPEC virtual basic_streambuf<_CharT, _Traits>* setbuf(char_type*, streamsize);
1.136 -
1.137 - // Alters the stream position, using an integer offset. In this
1.138 - // class seekoff does nothing; subclasses are expected to override it.
1.139 - _STLP_DECLSPEC virtual pos_type seekoff(off_type, ios_base::seekdir,
1.140 - ios_base::openmode = ios_base::in | ios_base::out);
1.141 -
1.142 - // Alters the stream position, using a previously obtained streampos. In
1.143 - // this class seekpos does nothing; subclasses are expected to override it.
1.144 - _STLP_DECLSPEC virtual pos_type
1.145 - seekpos(pos_type, ios_base::openmode = ios_base::in | ios_base::out);
1.146 -
1.147 - // Synchronizes (i.e. flushes) the buffer. All subclasses are expected to
1.148 - // override this virtual member function.
1.149 - _STLP_DECLSPEC virtual int sync();
1.150 -
1.151 -
1.152 -public: // Buffer management.
1.153 - basic_streambuf<_CharT, _Traits>* pubsetbuf(char_type* __s, streamsize __n)
1.154 - { return this->setbuf(__s, __n); }
1.155 -
1.156 - pos_type pubseekoff(off_type __offset, ios_base::seekdir __way,
1.157 - ios_base::openmode __mod = ios_base::in | ios_base::out)
1.158 - { return this->seekoff(__offset, __way, __mod); }
1.159 -
1.160 - pos_type pubseekpos(pos_type __sp,
1.161 - ios_base::openmode __mod = ios_base::in | ios_base::out)
1.162 - { return this->seekpos(__sp, __mod); }
1.163 -
1.164 - int pubsync() { return this->sync(); }
1.165 -
1.166 -protected: // Virtual get area functions, as defined in
1.167 - // 17.5.2.4.3 and 17.5.2.4.4 of the standard.
1.168 - // Returns a lower bound on the number of characters that we can read,
1.169 - // with underflow, before reaching end of file. (-1 is a special value:
1.170 - // it means that underflow will fail.) Most subclasses should probably
1.171 - // override this virtual member function.
1.172 - _STLP_DECLSPEC virtual streamsize showmanyc();
1.173 -
1.174 - // Reads up to __n characters. Return value is the number of
1.175 - // characters read.
1.176 - _STLP_DECLSPEC virtual streamsize xsgetn(char_type* __s, streamsize __n);
1.177 -
1.178 - // Called when there is no read position, i.e. when gptr() is null
1.179 - // or when gptr() >= egptr(). Subclasses are expected to override
1.180 - // this virtual member function.
1.181 - _STLP_DECLSPEC virtual int_type underflow();
1.182 -
1.183 - // Similar to underflow(), but used for unbuffered input. Most
1.184 - // subclasses should probably override this virtual member function.
1.185 - _STLP_DECLSPEC virtual int_type uflow();
1.186 -
1.187 - // Called when there is no putback position, i.e. when gptr() is null
1.188 - // or when gptr() == eback(). All subclasses are expected to override
1.189 - // this virtual member function.
1.190 - _STLP_DECLSPEC virtual int_type pbackfail(int_type = traits_type::eof());
1.191 -
1.192 -protected: // Virtual put area functions, as defined in
1.193 - // 27.5.2.4.5 of the standard.
1.194 -
1.195 - // Writes up to __n characters. Return value is the number of characters
1.196 - // written.
1.197 - _STLP_DECLSPEC virtual streamsize xsputn(const char_type* __s, streamsize __n);
1.198 -
1.199 - // Extension: writes up to __n copies of __c. Return value is the number
1.200 - // of characters written.
1.201 - _STLP_DECLSPEC virtual streamsize _M_xsputnc(char_type __c, streamsize __n);
1.202 -
1.203 - // Called when there is no write position. All subclasses are expected to
1.204 - // override this virtual member function.
1.205 - _STLP_DECLSPEC virtual int_type overflow(int_type = traits_type::eof());
1.206 -
1.207 -public: // Public members for writing characters.
1.208 - // Write a single character.
1.209 - int_type sputc(char_type __c) {
1.210 - return ((_M_pnext < _M_pend) ? _Traits::to_int_type(*_M_pnext++ = __c)
1.211 - : this->overflow(_Traits::to_int_type(__c)));
1.212 - }
1.213 -
1.214 - // Write __n characters.
1.215 - streamsize sputn(const char_type* __s, streamsize __n)
1.216 - { return this->xsputn(__s, __n); }
1.217 -
1.218 - // Extension: write __n copies of __c.
1.219 - streamsize _M_sputnc(char_type __c, streamsize __n)
1.220 - { return this->_M_xsputnc(__c, __n); }
1.221 -
1.222 -private: // Helper functions.
1.223 - _STLP_DECLSPEC int_type _M_snextc_aux();
1.224 -
1.225 -
1.226 -public: // Public members for reading characters.
1.227 - streamsize in_avail() {
1.228 - return (_M_gnext < _M_gend) ? (_M_gend - _M_gnext) : this->showmanyc();
1.229 - }
1.230 -
1.231 - // Advance to the next character and return it.
1.232 - int_type snextc() {
1.233 - return ( _M_gend - _M_gnext > 1 ?
1.234 - _Traits::to_int_type(*++_M_gnext) :
1.235 - this->_M_snextc_aux());
1.236 - }
1.237 -
1.238 - // Return the current character and advance to the next.
1.239 - int_type sbumpc() {
1.240 - return _M_gnext < _M_gend ? _Traits::to_int_type(*_M_gnext++)
1.241 - : this->uflow();
1.242 - }
1.243 -
1.244 - // Return the current character without advancing to the next.
1.245 - int_type sgetc() {
1.246 - return _M_gnext < _M_gend ? _Traits::to_int_type(*_M_gnext)
1.247 - : this->underflow();
1.248 - }
1.249 -
1.250 - streamsize sgetn(char_type* __s, streamsize __n)
1.251 - { return this->xsgetn(__s, __n); }
1.252 -
1.253 - int_type sputbackc(char_type __c) {
1.254 - return ((_M_gbegin < _M_gnext) && _Traits::eq(__c, *(_M_gnext - 1)))
1.255 - ? _Traits::to_int_type(*--_M_gnext)
1.256 - : this->pbackfail(_Traits::to_int_type(__c));
1.257 - }
1.258 -
1.259 - int_type sungetc() {
1.260 - return (_M_gbegin < _M_gnext)
1.261 - ? _Traits::to_int_type(*--_M_gnext)
1.262 - : this->pbackfail();
1.263 - }
1.264 -
1.265 -protected: // Virtual locale functions.
1.266 -
1.267 - // This is a hook, called by pubimbue() just before pubimbue()
1.268 - // sets the streambuf's locale to __loc. Note that imbue should
1.269 - // not (and cannot, since it has no access to streambuf's private
1.270 - // members) set the streambuf's locale itself.
1.271 - _STLP_DECLSPEC virtual void imbue(const locale&);
1.272 -
1.273 -public: // Locale-related functions.
1.274 - _STLP_DECLSPEC locale pubimbue(const locale&);
1.275 - locale getloc() const { return _M_locale; }
1.276 -
1.277 -# ifndef _STLP_NO_ANACHRONISMS
1.278 - void stossc() { this->sbumpc(); }
1.279 -# endif
1.280 -#if defined(__MVS__) || defined(__OS400__)
1.281 -private: // Data members.
1.282 -
1.283 - char_type* _M_gbegin; // Beginning of get area
1.284 - char_type* _M_gnext; // Current position within the get area
1.285 - char_type* _M_gend; // End of get area
1.286 -
1.287 - char_type* _M_pbegin; // Beginning of put area
1.288 - char_type* _M_pnext; // Current position within the put area
1.289 - char_type* _M_pend; // End of put area
1.290 -#endif
1.291 -};
1.292 -
1.293 -
1.294 -//----------------------------------------------------------------------
1.295 -// Specialization: basic_streambuf<char, char_traits<char> >
1.296 -
1.297 -// We implement basic_streambuf<char, char_traits<char> > very differently
1.298 -// than the general basic_streambuf<> template. The main reason for this
1.299 -// difference is a requirement in the C++ standard: the standard input
1.300 -// and output streams cin and cout are required by default to be synchronized
1.301 -// with the C library components stdin and stdout. This means it must be
1.302 -// possible to synchronize a basic_streambuf<char> with a C buffer.
1.303 -//
1.304 -// There are two basic ways to do that. First, the streambuf could be
1.305 -// unbuffered and delegate all buffering to stdio operations. This
1.306 -// would be correct, but slow: it would require at least one virtual
1.307 -// function call for every character. Second, the streambuf could use
1.308 -// a C stdio FILE as its buffer.
1.309 -//
1.310 -// We choose the latter option. Every streambuf has pointers to two
1.311 -// FILE objects, one for the get area and one for the put area. Ordinarily
1.312 -// it just uses a FILE object as a convenient way to package the three
1.313 -// get/put area pointers. If a basic_streambuf<char> is synchronized with
1.314 -// a stdio stream, though, then the pointers are to a FILE object that's
1.315 -// also used by the C library.
1.316 -//
1.317 -// The header <stl/_stdio_file.h> encapsulates the implementation details
1.318 -// of struct FILE. It contains low-level inline functions that convert
1.319 -// between whe FILE's internal representation and the three-pointer
1.320 -// representation that basic_streambuf<> needs.
1.321 -
1.322 -_STLP_TEMPLATE_NULL
1.323 -#ifdef __SYMBIAN32__
1.324 -class basic_streambuf<char, char_traits<char> >
1.325 -#else
1.326 -class _STLP_CLASS_DECLSPEC basic_streambuf<char, char_traits<char> >
1.327 -#endif
1.328 -{
1.329 - friend class basic_istream<char, char_traits<char> >;
1.330 - friend class basic_ostream<char, char_traits<char> >;
1.331 -public: // Typedefs.
1.332 - typedef char char_type;
1.333 - typedef char_traits<char>::int_type int_type;
1.334 - typedef char_traits<char>::pos_type pos_type;
1.335 - typedef char_traits<char>::off_type off_type;
1.336 - typedef char_traits<char> traits_type;
1.337 -
1.338 -private: // Data members.
1.339 -
1.340 - FILE* _M_get; // Reference to the get area
1.341 - FILE* _M_put; // Reference to the put area
1.342 -
1.343 -#if defined(__hpux)
1.344 - _FILEX _M_default_get; // Get area, unless we're syncing with stdio.
1.345 - _FILEX _M_default_put; // Put area, unless we're syncing with stdio.
1.346 -#else
1.347 - FILE _M_default_get; // Get area, unless we're syncing with stdio.
1.348 - FILE _M_default_put; // Put area, unless we're syncing with stdio.
1.349 -#endif
1.350 -
1.351 - locale _M_locale;
1.352 -
1.353 -public: // Extension: locking, for thread safety.
1.354 - _STLP_mutex _M_lock;
1.355 -
1.356 -public: // Destructor.
1.357 - _STLP_DECLSPEC virtual ~basic_streambuf _STLP_PSPEC2(char, char_traits<char>) ();
1.358 -
1.359 -public:
1.360 - // The default constructor; defined here inline as some compilers require it
1.361 - _STLP_DECLSPEC basic_streambuf _STLP_PSPEC2(char, char_traits<char>) ();
1.362 - // Extension: a constructor for streambufs synchronized with C stdio files.
1.363 - _STLP_DECLSPEC basic_streambuf _STLP_PSPEC2(char, char_traits<char>) (FILE* __get, FILE* __put);
1.364 -
1.365 -protected: // Protected interface to the get area.
1.366 - char_type* eback() const { return _FILE_I_begin(_M_get); }
1.367 - char_type* gptr() const { return _FILE_I_next(_M_get); }
1.368 - char_type* egptr() const { return _FILE_I_end(_M_get); }
1.369 - void gbump(int __n) { _FILE_I_bump(_M_get, __n); }
1.370 - void setg(char_type* __gbegin, char_type* __gnext, char_type* __gend)
1.371 - {
1.372 - _FILE_I_set(_M_get, __gbegin, __gnext, __gend);
1.373 -#ifdef __SYMBIAN32__
1.374 - _change_input_mode();
1.375 -#endif
1.376 - }
1.377 -
1.378 -public:
1.379 - // An alternate public interface to the above functions
1.380 - // which allows us to avoid using templated friends which
1.381 - // are not supported on some compilers.
1.382 -
1.383 - char_type* _M_eback() const { return _FILE_I_begin(_M_get); }
1.384 - char_type* _M_gptr() const { return _FILE_I_next(_M_get); }
1.385 - char_type* _M_egptr() const { return _FILE_I_end(_M_get); }
1.386 -
1.387 - void _M_gbump(int __n) { _FILE_I_bump(_M_get, __n); }
1.388 - void _M_setg(char_type* __gbegin, char_type* __gnext, char_type* __gend)
1.389 - { _FILE_I_set(_M_get, __gbegin, __gnext, __gend); }
1.390 -
1.391 -protected: // Protected interface to the put area
1.392 - char_type* pbase() const { return _FILE_O_begin(_M_put); }
1.393 - char_type* pptr() const { return _FILE_O_next(_M_put); }
1.394 - char_type* epptr() const { return _FILE_O_end(_M_put); }
1.395 -
1.396 - void pbump(int __n) { _FILE_O_bump(_M_put, __n); }
1.397 - void setp(char_type* __pbegin, char_type* __pend)
1.398 - { _FILE_O_set(_M_put, __pbegin, __pbegin, __pend); }
1.399 -
1.400 -protected: // Virtual buffer-management functions.
1.401 - _STLP_DECLSPEC virtual basic_streambuf<char, char_traits<char> >* setbuf(char_type*, streamsize);
1.402 - _STLP_DECLSPEC virtual pos_type seekoff(off_type, ios_base::seekdir,
1.403 - ios_base::openmode = ios_base::in | ios_base::out);
1.404 - _STLP_DECLSPEC virtual pos_type
1.405 - seekpos(pos_type, ios_base::openmode = ios_base::in | ios_base::out);
1.406 - _STLP_DECLSPEC virtual int sync();
1.407 -
1.408 -public: // Buffer management.
1.409 - basic_streambuf<char, char_traits<char> >* pubsetbuf(char_type* __s, streamsize __n)
1.410 - { return this->setbuf(__s, __n); }
1.411 -
1.412 - pos_type pubseekoff(off_type __offset, ios_base::seekdir __way,
1.413 - ios_base::openmode __mod = ios_base::in | ios_base::out)
1.414 - { return this->seekoff(__offset, __way, __mod); }
1.415 -
1.416 - pos_type pubseekpos(pos_type __sp,
1.417 - ios_base::openmode __mod = ios_base::in | ios_base::out)
1.418 - { return this->seekpos(__sp, __mod); }
1.419 -
1.420 - int pubsync() { return this->sync(); }
1.421 -
1.422 -protected: // Virtual get area functions.
1.423 - _STLP_DECLSPEC virtual streamsize showmanyc();
1.424 - _STLP_DECLSPEC virtual streamsize xsgetn(char_type* __s, streamsize __n);
1.425 - _STLP_DECLSPEC virtual int_type underflow();
1.426 - _STLP_DECLSPEC virtual int_type uflow();
1.427 - _STLP_DECLSPEC virtual int_type pbackfail(int_type __c = traits_type::eof());
1.428 -
1.429 -protected: // Virtual put area functions.
1.430 - _STLP_DECLSPEC virtual streamsize xsputn(const char_type* __s, streamsize __n);
1.431 - _STLP_DECLSPEC virtual streamsize _M_xsputnc(char_type __c, streamsize __n);
1.432 - _STLP_DECLSPEC virtual int_type overflow(int_type = traits_type::eof());
1.433 -#ifdef __SYMBIAN32__
1.434 - virtual int save_read_buffer () { return 0; }
1.435 - virtual void _change_input_mode() {};
1.436 -#endif
1.437 -public: // Public members for writing characters.
1.438 - // Write a single character.
1.439 - int_type sputc(char_type __c) {
1.440 - int_type __res;
1.441 - if( _FILE_O_avail(_M_put) > 0 )
1.442 - {
1.443 - _FILE_O_postincr(_M_put) = __c;
1.444 - __res = traits_type::to_int_type(__c);
1.445 - }
1.446 - else
1.447 - __res = this->overflow(traits_type::to_int_type(__c));
1.448 - return __res;
1.449 - }
1.450 -
1.451 - // Write __n characters.
1.452 - streamsize sputn(const char_type* __s, streamsize __n)
1.453 - { return this->xsputn(__s, __n); }
1.454 -
1.455 - // Extension: write __n copies of __c.
1.456 - streamsize _M_sputnc(char_type __c, streamsize __n)
1.457 - { return this->_M_xsputnc(__c, __n); }
1.458 -
1.459 -private: // Helper functions.
1.460 - _STLP_DECLSPEC int_type _M_snextc_aux();
1.461 -
1.462 -public: // Public members for reading characters.
1.463 - streamsize in_avail()
1.464 - { return _FILE_I_avail(_M_get) > 0 ? _FILE_I_avail(_M_get)
1.465 -#ifdef __SYMBIAN32__
1.466 - + save_read_buffer()
1.467 -#endif
1.468 - : this->showmanyc(); }
1.469 -
1.470 - // Advance to the next character and return it.
1.471 - int_type snextc() {
1.472 - return _FILE_I_avail(_M_get) > 1
1.473 - ? traits_type::to_int_type(_FILE_I_preincr(_M_get))
1.474 - : this->_M_snextc_aux();
1.475 - }
1.476 -
1.477 - // Return the current character and advance to the next.
1.478 - int_type sbumpc() {
1.479 - return _FILE_I_avail(_M_get) > 0
1.480 - ? traits_type::to_int_type(_FILE_I_postincr(_M_get))
1.481 - : this->uflow();
1.482 - }
1.483 -
1.484 - // Return the current character without advancing to the next.
1.485 - int_type sgetc() {
1.486 - return _FILE_I_avail(_M_get) > 0
1.487 - ? traits_type::to_int_type(*_FILE_I_next(_M_get))
1.488 - : this->underflow();
1.489 - }
1.490 -
1.491 - streamsize sgetn(char_type* __s, streamsize __n)
1.492 - { return this->xsgetn(__s, __n); }
1.493 -
1.494 - int_type sputbackc(char_type __c) {
1.495 - return _FILE_I_begin(_M_get) < _FILE_I_next(_M_get) &&
1.496 - __c == *(_FILE_I_next(_M_get) - 1)
1.497 - ? traits_type::to_int_type(_FILE_I_predecr(_M_get))
1.498 - : this->pbackfail(traits_type::to_int_type(__c));
1.499 - }
1.500 -
1.501 - int_type sungetc() {
1.502 - return _FILE_I_begin(_M_get) < _FILE_I_next(_M_get)
1.503 - ? traits_type::to_int_type(_FILE_I_predecr(_M_get))
1.504 - : this->pbackfail();
1.505 - }
1.506 -
1.507 -protected: // Virtual locale functions.
1.508 - _STLP_DECLSPEC virtual void imbue(const locale&);
1.509 -public: // Locale-related functions.
1.510 - _STLP_DECLSPEC locale pubimbue(const locale&);
1.511 - locale getloc() const { return _M_locale; }
1.512 -
1.513 -# ifndef _STLP_NO_ANACHRONISMS
1.514 -public:
1.515 - void stossc() { this->sbumpc(); }
1.516 -# endif
1.517 -
1.518 -#if defined(__MVS__) || defined(__OS400__)
1.519 -private: // Data members.
1.520 -
1.521 - char_type* _M_gbegin; // Beginning of get area
1.522 - char_type* _M_gnext; // Current position within the get area
1.523 - char_type* _M_gend; // End of get area
1.524 -
1.525 - char_type* _M_pbegin; // Beginning of put area
1.526 - char_type* _M_pnext; // Current position within the put area
1.527 - char_type* _M_pend; // End of put area
1.528 -#endif
1.529 -
1.530 -};
1.531 -_STLP_END_NAMESPACE
1.532 -
1.533 -# if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION)
1.534 -# include <stl/_streambuf.c>
1.535 -# endif
1.536 -
1.537 -#endif
1.538 -// Local Variables:
1.539 -// mode:C++
1.540 -// End: