filebuf

Explain Change to GNU C++ filebuf::underflow() interacting with filebuf::seekoff()

My company's products run on a number of qualified Linux hardware/software configurations. Historically, the compiler used has been GNU C++. For purposes of this post, let's consider version 3.2.3 the baseline, as our software 'worked as expected' through that version. With the introduction of a newer qualified platform, using GNU C++ v...