It is not possible to round-trip objects of this type to and from a
              string and get back exactly the same value when compiled with Intel's
              C++ compiler and using <code class="computeroutput"><span class="identifier">_Quad</span></code>
              as the underlying type: this is a current limitation of our code. Round
              tripping when using <code class="computeroutput"><a class="link" href="float128.html" title="float128">float128</a></code>
              as the under