std::filebuf::showmanyc

This member function (to be read s-how-many-c) is called to get an estimate on the number of characters available in the associated input sequence when the get pointer has reached the apparent end of the associated sequence (still, characters may be available after an underflow, and their count is what the return value of this function is expected to be).

The public member function in_avail of the parent class streambuf calls this virtual member function to perform this action when the get pointer has reached the end pointer (or when it is set to null).

This member function overrides the inherited virtual member streambuf::showmanyc.

Parameters

none

Return Value

An estimate on the number of characters remaining to be read in the associated character sequence after an underflow when no read positions are available at the get pointer.

Basic template member declaration

( basic_filebuf<charT,traits> )

See also

streambuf::in_avail

Get number of characters available to read (public member function)

filebuf::underflow

Get character in the case of underflow (protected virtual member function)