std::basic_ifstream::rdbuf

C++

Language

Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

Input/output library

I/O manipulators

C-style I/O

Buffers

basic_streambuf

basic_filebuf

basic_stringbuf

strstreambuf (deprecated)

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

istrstream (deprecated)

ostrstream (deprecated)

strstream (deprecated)

Synchronized Output

basic_osyncstream (C++20)

Types

streamoff

streamsize

fpos

Error category interface

iostream_category (C++11)

io_errc (C++11)

std::basic_ifstream

Member functions

basic_ifstream::basic_ifstream

basic_ifstream::operator= (C++11)

basic_ifstream::swap (C++11)

basic_ifstream::rdbuf

File operations

basic_ifstream::is_open

basic_ifstream::open

basic_ifstream::close

Non-member functions

basic_ifstream::swap(std::basic_ifstream) (C++11)

std::basic_filebuf<CharT, Traits>* rdbuf() const;		(since C++11)

Returns pointer to the underlying raw file device object.

Parameters

(none)

Return value

Pointer to the underlying raw file device.