bytes_left()

fl::size_t fl::filebuf::bytes_left ( ) const

virtual

Reimplemented in fl::detail::memorybuf, and fl::Mpeg1FileHandle.

Definition at line 14 of file file_handle.cpp.hpp.

                                                {
    fl::size_t s = size();
    // tell() is non-const in the interface, but bytes_left needs it.
    // Use const_cast for this read-only query - tell() doesn't mutate logical state.
    fl::size_t t = const_cast<filebuf*>(this)->tell();
    return (t <= s) ? (s - t) : 0;
}

References fl::FL_NO_EXCEPT, size(), fl::t, and tell().

Referenced by available(), and bytesLeft().

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