e correctly rounded, but not all inexact representations
        are. In particular, C++ requires numeric conversions (described below) and
        the result of arithmetic operations (not covered by this document) to be
        correctly rounded, but batch operations propagate roundoff, thus final results
        are usually incorrectly rounded, that is, the numeric value <code class="computeroutput"><span class="identifier">r</span></code> which is the computed result is neither
        of the adjacents o