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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/375206337937801216?category=main&amp;channel=swift-zatsu&amp;message_id=1152100835124314183"><span class="chatlog__timestamp" title="Friday, September 15, 2023 4:35 AM"></span></a><a href="#chatlog__message-container-1152100299868213349">9/15/2023 4:35 AM</a></div>
        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">あ、 <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">%@</code> が使えるのは ObjC です。</span></div>
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        <div class="chatlog__short-timestamp" title="Friday, September 15, 2023 4:35 AM">4:35 AM</div>
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        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">元々はC言語の <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">printf</code> が多分元祖で大昔からあって</span></div>
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        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve">ObjCではそこに オブジェクトなんでも渡せる型指定子として <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">@</code> を追加したわけです。</span> <span class="chatlog__edited-timestamp" title="Friday, September 15, 2023 4:35 AM">(edited)</span></div>
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        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve"><a href="https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html#//apple_ref/doc/uid/TP40004265-SW1">https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html#//apple_ref/doc/uid/TP40004265-SW1</a></span></div>
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                <div class="chatlog__embed-title"><a class="chatlog__embed-title-link" href="https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html">
                    <div class="chatlog__markdown chatlog__markdown-preserve">String Format Specifiers</div>
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                  <div class="chatlog__markdown chatlog__markdown-preserve">Explains how to create, search, concatenate, and draw strings in Cocoa.</div>
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              <div class="chatlog__markdown-quote-content">Format Specifiers The format specifiers supported by the NSString formatting methods and CFString formatting functions follow the IEEE printf specification; the specifiers are summarized in Table 1. Note that you can also use the “n$” positional specifiers such as %1$@ %2$s. For more details, see the IEEE printf specification. You can also use these format specifiers with the NSLog function.</div>
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