he Unicode standard.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">begin</td><td>Iterator pointing to the beginning of the input sequence </td></tr>
    <tr><td class="paramname">end</td><td>Iterator pointing to the end of the input sequence </td></tr>
    <tr><td class="paramname">output</td><td>Codepoint of the decoded UTF-8 character </td></tr>
    <tr><td class="paramname">replacement</td><td>Replacement character to use in case the UTF-8 sequence 