williamr@2: /*
williamr@4:  * Portions Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
williamr@4:  *
williamr@4:  * Copyright (c) 1999
williamr@4:  * Silicon Graphics Computer Systems, Inc.
williamr@4:  *
williamr@4:  * Copyright (c) 1999
williamr@4:  * Boris Fomitchev
williamr@4:  *
williamr@4:  * This material is provided "as is", with absolutely no warranty expressed
williamr@4:  * or implied. Any use is at your own risk.
williamr@4:  *
williamr@4:  * Permission to use or copy this software for any purpose is hereby granted
williamr@4:  * without fee, provided the above notices are retained on all copies.
williamr@4:  * Permission to modify the code and to distribute modified code is granted,
williamr@4:  * provided the above notices are retained, and a notice that the code was
williamr@4:  * modified is included with the above copyright notice.
williamr@4:  *
williamr@4:  */
williamr@4: #ifndef _STLP_INTERNAL_STRSTREAM
williamr@4: #define _STLP_INTERNAL_STRSTREAM
williamr@2: 
williamr@2: #ifndef _STLP_INTERNAL_STREAMBUF
williamr@4: #  include <stl/_streambuf.h>
williamr@2: #endif
williamr@4: 
williamr@4: #ifndef _STLP_INTERNAL_ISTREAM
williamr@4: #  include <stl/_istream.h>              // Includes <ostream>, <ios>, <iosfwd>
williamr@2: #endif
williamr@4: 
williamr@4: #ifndef _STLP_INTERNAL_STRING_H
williamr@4: #  include <stl/_string.h>
williamr@2: #endif
williamr@2: 
williamr@2: _STLP_BEGIN_NAMESPACE
williamr@2: 
williamr@2: #ifndef _STLP_USE_NAMESPACES
williamr@4: #  define strstream _STLP_strstream
williamr@4: #  define ostrstream _STLP_ostrstream
williamr@4: #  define istrstream _STLP_istrstream
williamr@4: #  define strstreambuf _STLP_strstreambuf
williamr@2: #endif
williamr@2: 
williamr@2: //----------------------------------------------------------------------
williamr@2: // Class strstreambuf, a streambuf class that manages an array of char.
williamr@2: // Note that this class is not a template.
williamr@4: 
williamr@4: class _STLP_CLASS_DECLSPEC strstreambuf : public basic_streambuf<char, char_traits<char> > {
williamr@2: public:                         // Types.
williamr@2:   typedef char_traits<char>              _Traits;
williamr@2:   typedef basic_streambuf<char, char_traits<char> > _Base;
williamr@2:   typedef void* (*__alloc_fn)(size_t);
williamr@2:   typedef void (*__free_fn)(void*);
williamr@2: public:                         // Constructor, destructor
williamr@2: 
williamr@4:   _STLP_DECLSPEC explicit strstreambuf(streamsize _Initial_capacity = 0);
williamr@2: 
williamr@2:   _STLP_DECLSPEC strstreambuf(__alloc_fn, __free_fn);
williamr@2: 
williamr@2:   _STLP_DECLSPEC strstreambuf(char* __get, streamsize __n, char* __put = 0);
williamr@2:   _STLP_DECLSPEC strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0);
williamr@2:   _STLP_DECLSPEC strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0);
williamr@2: 
williamr@2:   _STLP_DECLSPEC strstreambuf(const char* __get, streamsize __n);
williamr@2:   _STLP_DECLSPEC strstreambuf(const signed char* __get, streamsize __n);
williamr@2:   _STLP_DECLSPEC strstreambuf(const unsigned char* __get, streamsize __n);
williamr@2: 
williamr@4:   _STLP_DECLSPEC virtual ~strstreambuf();
williamr@2: 
williamr@2: public:                         // strstreambuf operations.
williamr@2:   _STLP_DECLSPEC void freeze(bool = true);
williamr@2:   _STLP_DECLSPEC char* str();
williamr@2:   _STLP_DECLSPEC int pcount() const;
williamr@2: 
williamr@2: protected:                      // Overridden virtual member functions.
williamr@4:   _STLP_DECLSPEC virtual int_type overflow(int_type __c  = _Traits::eof());
williamr@4:   _STLP_DECLSPEC virtual int_type pbackfail(int_type __c = _Traits::eof());
williamr@4:   _STLP_DECLSPEC virtual int_type underflow();
williamr@4:   _STLP_DECLSPEC virtual _Base* setbuf(char* __buf, streamsize __n);
williamr@4:   _STLP_DECLSPEC virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,
williamr@4:                            ios_base::openmode __mode
williamr@2:                                       = ios_base::in | ios_base::out);
williamr@4:   _STLP_DECLSPEC virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode
williamr@2:                                       = ios_base::in | ios_base::out);
williamr@2: 
williamr@2: private:                        // Helper functions.
williamr@2:   // Dynamic allocation, possibly using _M_alloc_fun and _M_free_fun.
williamr@2:   char* _M_alloc(size_t);
williamr@4:   void  _M_free(char*);
williamr@2: 
williamr@2:   // Helper function used in constructors.
williamr@2:   void _M_setup(char* __get, char* __put, streamsize __n);
williamr@2: private:                        // Data members.
williamr@2:   __alloc_fn _M_alloc_fun;
williamr@2:   __free_fn  _M_free_fun;
williamr@2:   bool _M_dynamic  : 1;
williamr@2:   bool _M_frozen   : 1;
williamr@2:   bool _M_constant : 1;
williamr@2: };
williamr@2: 
williamr@2: //----------------------------------------------------------------------
williamr@2: // Class istrstream, an istream that manages a strstreambuf.
williamr@2: 
williamr@4: class _STLP_CLASS_DECLSPEC istrstream : public basic_istream<char, char_traits<char> > {
williamr@2: public:
williamr@2:   _STLP_DECLSPEC explicit istrstream(char*);
williamr@2:   _STLP_DECLSPEC explicit istrstream(const char*);
williamr@2:   _STLP_DECLSPEC istrstream(char* , streamsize);
williamr@2:   _STLP_DECLSPEC istrstream(const char*, streamsize);
williamr@4:   _STLP_DECLSPEC virtual ~istrstream();
williamr@4: 
williamr@2:   _STLP_DECLSPEC strstreambuf* rdbuf() const;
williamr@2:   _STLP_DECLSPEC char* str();
williamr@2: 
williamr@2: private:
williamr@2:   strstreambuf _M_buf;
williamr@2: };
williamr@2: 
williamr@2: //----------------------------------------------------------------------
williamr@2: // Class ostrstream
williamr@4: 
williamr@2: class _STLP_CLASS_DECLSPEC ostrstream : public basic_ostream<char, char_traits<char> >
williamr@2: {
williamr@2: public:
williamr@2:   _STLP_DECLSPEC ostrstream();
williamr@2:   _STLP_DECLSPEC ostrstream(char*, int, ios_base::openmode = ios_base::out);
williamr@4:   _STLP_DECLSPEC virtual ~ostrstream();
williamr@2: 
williamr@2:   _STLP_DECLSPEC strstreambuf* rdbuf() const;
williamr@2:   _STLP_DECLSPEC void freeze(bool = true);
williamr@2:   _STLP_DECLSPEC char* str();
williamr@2:   _STLP_DECLSPEC int pcount() const;
williamr@2: 
williamr@2: private:
williamr@2:   strstreambuf _M_buf;
williamr@2: };
williamr@2: 
williamr@2: //----------------------------------------------------------------------
williamr@2: // Class strstream
williamr@4: 
williamr@4: class _STLP_CLASS_DECLSPEC strstream : public basic_iostream<char, char_traits<char> > {
williamr@2: public:
williamr@2:   typedef char                        char_type;
williamr@2:   typedef char_traits<char>::int_type int_type;
williamr@2:   typedef char_traits<char>::pos_type pos_type;
williamr@2:   typedef char_traits<char>::off_type off_type;
williamr@2: 
williamr@2:   _STLP_DECLSPEC strstream();
williamr@2:   _STLP_DECLSPEC strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out);
williamr@4:   _STLP_DECLSPEC virtual ~strstream();
williamr@2: 
williamr@2:   _STLP_DECLSPEC strstreambuf* rdbuf() const;
williamr@2:   _STLP_DECLSPEC void freeze(bool = true);
williamr@2:   _STLP_DECLSPEC int pcount() const;
williamr@2:   _STLP_DECLSPEC char* str();
williamr@2: 
williamr@2: private:
williamr@2:   strstreambuf _M_buf;
williamr@4: 
williamr@4:   //explicitely defined as private to avoid warnings:
williamr@4:   strstream(strstream const&);
williamr@4:   strstream& operator = (strstream const&);
williamr@2: };
williamr@2: 
williamr@2: _STLP_END_NAMESPACE
williamr@4: 
williamr@4: #endif /* _STLP_INTERNAL_STRSTREAM */