="special">&lt;</span><span class="keyword">typename</span> Range1T<span class="special">,</span> <span class="keyword">typename</span> Range2T<span class="special">&gt;</span> 
  <span class="keyword">bool</span> <span class="identifier">starts_with</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Range1T</span> <span class="special">&amp;</span> Input<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Range2T</span> <spa