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      <div class="chatlog__message-aside"><img class="chatlog__avatar" src="https://cdn.discordapp.com/avatars/189711109966659584/95280765d1be73ce985dce15ea3585f6.png?size=512" alt="Avatar" loading="lazy"></div>
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        <div class="chatlog__header"><span class="chatlog__author" style="color:rgb(237,171,161)" title="omochimetaru" data-user-id="189711109966659584">omochimetaru</span> <a href="/channels/306995750418513920?category=main&amp;channel=swift-2&amp;message_id=891018613442625586"><span class="chatlog__timestamp" title="Friday, September 24, 2021 5:47 PM"></span></a><a href="#chatlog__message-container-891018143806414969">9/24/2021 5:47 PM</a></div>
        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve"><code class="chatlog__markdown-pre chatlog__markdown-pre--inline">BidirectionalCollection.index(_:offsetBy:)</code> は、</span></div>
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        <div class="chatlog__short-timestamp" title="Friday, September 24, 2021 5:48 PM">5:48 PM</div>
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        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">offsetとして与えられた回数だけ前(や後ろ)にオフセットをループしないといけないけど</span></div>
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  <div id="chatlog__message-container-891018437311213658" class="chatlog__message-container" data-message-id="891018437311213658">
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        <div class="chatlog__short-timestamp" title="Friday, September 24, 2021 5:49 PM">5:49 PM</div>
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        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve"><code class="chatlog__markdown-pre chatlog__markdown-pre--inline">RandomAccessCollection.index(_:offetBy:)</code> は、一気にオフセットしたインデックスを作ってアクセスできる</span></div>
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  <div id="chatlog__message-container-891018483947688047" class="chatlog__message-container" data-message-id="891018483947688047">
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        <div class="chatlog__short-timestamp" title="Friday, September 24, 2021 5:49 PM">5:49 PM</div>
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      <div class="chatlog__message-primary">
        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">けど・・・テーブルが別になっててほしい理由がわからん・・・</span></div>
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  <div id="chatlog__message-container-891018613442625586" class="chatlog__message-container" data-message-id="891018613442625586">
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        <div class="chatlog__short-timestamp" title="Friday, September 24, 2021 5:49 PM">5:49 PM</div>
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        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">BidirectionalCollectionとして見ているときであっても、実装がRandomAccessCollectionなのであれば、RandomAccessCollectionの早い実装を使いたいのだから、テーブルエントリは同一で良くないか？？</span></div>
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