 then returns the result of <a class="link" href="../error_handling.html#math_toolkit.error_handling.domain_error">domain_error</a>.
      </p>
<p>
        If x is in the range <code class="literal">[-1;-1+&#949;[</code>, then the result of -<a class="link" href="../error_handling.html#math_toolkit.error_handling.overflow_error">overflow_error</a>
        is returned, with &#949; &#160;
denoting numeric_limits&lt;T&gt;::epsilon().
      </p>
<p>
        If x is in the range <code class="literal">]+1-&#949;;