std::basic_ofstream<CharT,Traits>::rdbuf

From cppreference.com
< cpp‎ | io‎ | basic ofstream

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.

Example