<div class="chatlog__message-group"> <div id="chatlog__message-container-1152100299868213349" class="chatlog__message-container" data-message-id="1152100299868213349"> <div class="chatlog__message"> <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> <div class="chatlog__message-primary"> <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&channel=swift-zatsu&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> </div> </div> </div> <div id="chatlog__message-container-1152100364615692368" class="chatlog__message-container" data-message-id="1152100364615692368"> <div class="chatlog__message"> <div class="chatlog__message-aside"> <div class="chatlog__short-timestamp" title="Friday, September 15, 2023 4:35 AM">4:35 AM</div> </div> <div class="chatlog__message-primary"> <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> </div> </div> </div> <div id="chatlog__message-container-1152100443640578109" class="chatlog__message-container" data-message-id="1152100443640578109"> <div class="chatlog__message"> <div class="chatlog__message-aside"> <div class="chatlog__short-timestamp" title="Friday, September 15, 2023 4:35 AM">4:35 AM</div> </div> <div class="chatlog__message-primary"> <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> </div> </div> </div> <div id="chatlog__message-container-1152100810214350848" class="chatlog__message-container" data-message-id="1152100810214350848"> <div class="chatlog__message"> <div class="chatlog__message-aside"> <div class="chatlog__short-timestamp" title="Friday, September 15, 2023 4:37 AM">4:37 AM</div> </div> <div class="chatlog__message-primary"> <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> <div class="chatlog__embed"> <div class="chatlog__embed-color-pill chatlog__embed-color-pill--default"></div> <div class="chatlog__embed-content-container"> <div class="chatlog__embed-content"> <div class="chatlog__embed-text"> <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> </a></div> <div class="chatlog__embed-description"> <div class="chatlog__markdown chatlog__markdown-preserve">Explains how to create, search, concatenate, and draw strings in Cocoa.</div> </div> </div> </div> </div> </div> </div> </div> </div> <div id="chatlog__message-container-1152100835124314183" class="chatlog__message-container" data-message-id="1152100835124314183"> <div class="chatlog__message"> <div class="chatlog__message-aside"> <div class="chatlog__short-timestamp" title="Friday, September 15, 2023 4:37 AM">4:37 AM</div> </div> <div class="chatlog__message-primary"> <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve"> <div class="chatlog__markdown-quote"> <div class="chatlog__markdown-quote-border"></div> <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> </div> </span></div> </div> </div> </div> </div>