ggle-link" href="#comment-withContiguousStorageIfAvailable-a498ae9a2038e195b24a1bcdf0aa982e">func withContiguousStorageIfAvailable(_ body: (UnsafeBufferPointer&lt;Self.Element>) throws -> R) rethrows -> R?</a> <span class="required">Required</span><div class="comment collapse in" id="comment-withContiguousStorageIfAvailable-a498ae9a2038e195b24a1bcdf0aa982e"><p>Call <code>body(p)</code>, where <code>p</code> is a pointer to the collection's
contiguous storage.  If no such storage exists, it is
first created.