n class=machine><span class=font-tt>s = </span></span><span class=machine><span class=font-tt>{</span></span><span class=machine><span class=font-tt>idx: int; d: float array</span></span><span class=machine><span class=font-tt>}</span></span>.
The value of <span class=machine><span class=font-tt>len</span></span> is recovered from the size of the Caml array <span class=machine><span class=font-tt>d</span></span>,
and thus doesn’t need to be represented explicitly in the Caml record.</li><li class="li-item