std::basic_streambuf<CharT,Traits>::eback, gptr, egptr

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Input/output library

I/O manipulators
Print functions(C++23)
C-style I/O
Buffers
basic_streambuf
basic_filebuf
basic_stringbuf
basic_spanbuf (C++23)
strstreambuf (C++98/26*)
basic_syncbuf (C++20)
Streams
Abstractions
ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I/O
basic_ifstream
basic_ofstream
basic_fstream
String I/O
basic_istringstream
basic_ostringstream
basic_stringstream
Array I/O
basic_ispanstream (C++23)
basic_ospanstream (C++23)
basic_spanstream (C++23)
istrstream (C++98/26*)
ostrstream (C++98/26*)
strstream (C++98/26*)
Synchronized Output
basic_osyncstream (C++20)
Types
streamoff
streamsize
fpos
Error category interface
iostream_category (C++11)
io_errc (C++11)

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std::basic_streambuf

Public member functions
basic_streambuf::~basic_streambuf
Locales
basic_streambuf::pubimbue
basic_streambuf::getloc
Positioning
basic_streambuf::pubsetbuf
basic_streambuf::pubseekoff
basic_streambuf::pubseekpos
basic_streambuf::pubsync
Get area
basic_streambuf::in_avail
basic_streambuf::snextc
basic_streambuf::sbumpc
basic_streambuf::sgetc
basic_streambuf::sgetn
Put area
basic_streambuf::sputc
basic_streambuf::sputn
Putback
basic_streambuf::sputbackc
basic_streambuf::sungetc

Protected member functions
basic_streambuf::basic_streambuf
basic_streambuf::operator= (C++11)
basic_streambuf::swap (C++11)
Locales
basic_streambuf::imbue
Positioning
basic_streambuf::setbuf
basic_streambuf::seekoff
basic_streambuf::seekpos
basic_streambuf::sync
Get area
basic_streambuf::showmanyc
basic_streambuf::underflow
basic_streambuf::uflow
basic_streambuf::xsgetn
basic_streambuf::ebackbasic_streambuf::gptrbasic_streambuf::egptr
basic_streambuf::gbump
basic_streambuf::setg
Put area
basic_streambuf::xsputn
basic_streambuf::overflow
basic_streambuf::pbasebasic_streambuf::pptrbasic_streambuf::epptr
basic_streambuf::pbump
basic_streambuf::setp
Putback
basic_streambuf::pbackfail

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char_type* eback()const;	(1)
char_type* gptr()const;	(2)
char_type* egptr()const;	(3)

Returns pointers defining the get area.

1) Returns the pointer to the beginning of the get area.

2) Returns the pointer to the current character (get pointer) in the get area.

3) Returns the pointer one past the end of the get area.

[edit]Parameters

(none)

[edit]Return value

1) The pointer to the beginning of the get area.

2) The pointer to the current character (get pointer) in the get area.

3) The pointer one past the end of the get area.

[edit]Notes

While the names "gptr" and "egptr" refer to the get area, the name "eback" refers to the end of the putback area: stepping backwards fromgptr, characters can be put back untileback.