C++ basic_streambuf Library - eback

Description

It is used in pointer to beginning of input sequence and returns a pointer to the first element of the array with the portion of the controlled input sequence that is currently buffered.

Declaration

Following is the declaration for std::basic_streambuf::eback.

char_type* eback() const;

Parameters

none

Return Value

It returns a pointer to the first element of the array with the portion of the controlled input sequence that is currently buffered.

Exceptions

Strong guarantee − if an exception is thrown, there are no changes in the stream buffer.

Data races

It accesses the stream buffer object.