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

 

C++

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Symbols index

External libraries

 

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)

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basic_ispanstream (C++23)

basic_ospanstream (C++23)

basic_spanstream (C++23)

istrstream (C++98/26*)

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basic_osyncstream (C++20)

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streamoff

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iostream_category (C++11)

io_errc (C++11)

 

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

 

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.

Parameters

(none)

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.

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 from gptr, characters can be put back until eback.

See also

pbasepptrepptr

returns a pointer to the beginning, current character and the end of the put area (protected member function)