home *** CD-ROM | disk | FTP | other *** search
- /***
- *strstream.h - definitions/declarations for strstreambuf, strstream
- *
- * Copyright (c) 1991-1992, Microsoft Corporation. All rights reserved.
- *
- *Purpose:
- * This file defines the classes, values, macros, and functions
- * used by the strstream and strstreambuf classes.
- * [AT&T C++]
- *
- ****/
-
- #ifndef _INC_STRSTREAM
- #define _INC_STRSTREAM
-
- #include <iostream.h>
-
- // Force word packing to avoid possible -Zp override
- #pragma pack(2)
-
- #pragma warning(disable:4505) // disable unwanted /W4 warning
- // #pragma warning(default:4505) // use this to reenable, if necessary
-
- #ifdef M_I86HM // fold huge member pointers into far
- #define _HFAR_ __far
- #else
- #define _HFAR_
- #endif
-
- class strstreambuf : public streambuf {
- public:
- strstreambuf();
- strstreambuf(int);
- strstreambuf(char _HFAR_ *, int, char _HFAR_ * = 0);
- strstreambuf(unsigned char _HFAR_ *, int, unsigned char _HFAR_ * = 0);
- strstreambuf(signed char _HFAR_ _HFAR_ *, int, signed char _HFAR_ * = 0);
- strstreambuf(void _HFAR_ * (*a)(long), void (*f) (void _HFAR_ *));
- ~strstreambuf();
-
- void freeze(int =1);
- char _HFAR_ * str();
-
- virtual int overflow(int);
- virtual int underflow();
- virtual streambuf* setbuf(char _HFAR_ *, int);
- virtual streampos seekoff(streamoff, ios::seek_dir, int);
- virtual int sync(); // not in spec.
-
- protected:
- virtual int doallocate();
- private:
- int x_dynamic;
- int x_bufmin;
- int _fAlloc;
- int x_static;
- void _HFAR_ * (* x_alloc)(long);
- void (* x_free)(void _HFAR_ *);
- };
-
- class istrstream : public istream {
- public:
- istrstream(char _HFAR_ *);
- istrstream(char _HFAR_ *, int);
- ~istrstream();
-
- inline strstreambuf* rdbuf() const { return (strstreambuf*) ios::rdbuf(); }
- inline char _HFAR_ * str() { return rdbuf()->str(); }
- };
-
- class ostrstream : public ostream {
- public:
- ostrstream();
- ostrstream(char _HFAR_ *, int, int = ios::out);
- ~ostrstream();
-
- inline int pcount() const { return rdbuf()->out_waiting(); }
- inline strstreambuf* rdbuf() const { return (strstreambuf*) ios::rdbuf(); }
- inline char _HFAR_ * str() { return rdbuf()->str(); }
- };
-
- class strstream : public iostream { // strstreambase ???
- public:
- strstream();
- strstream(char _HFAR_ *, int, int);
- ~strstream();
-
- inline int pcount() const { return rdbuf()->out_waiting(); } // not in spec.
- inline strstreambuf* rdbuf() const { return (strstreambuf*) ostream::rdbuf(); }
- inline char _HFAR_ * str() { return rdbuf()->str(); }
- };
-
- // Restore default packing
- #pragma pack()
-
- #endif // !_INC_STRSTREAM
-