{"id":6344,"date":"2025-09-21T06:15:38","date_gmt":"2025-09-21T06:15:38","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=6344"},"modified":"2025-09-21T06:15:38","modified_gmt":"2025-09-21T06:15:38","slug":"iosdc-japan-2025-%e3%82%a2%e3%83%b3%e3%83%89%e3%83%91%e3%83%83%e3%83%89swift%e3%82%af%e3%82%a4%e3%82%ba%e8%a7%a3%e8%aa%ac-day1-%e5%8d%88%e5%89%8d","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/6344\/","title":{"rendered":"iOSDC Japan 2025 \u30a2\u30f3\u30c9\u30d1\u30c3\u30c9Swift\u30af\u30a4\u30ba\u89e3\u8aac &#8211; Day1 \u5348\u524d"},"content":{"rendered":"\n<\/p>\n<div>\n<p>\u3053\u3093\u306b\u3061\u306f\u3001\u897f <a target=\"_blank\" href=\"https:\/\/x.com\/jrsaruo_tech\">@jrsaruo_tech<\/a> \u3067\u3059\u3002<br \/>\niOSDC Japan 2025 Day1 \u524d\u534a\u6226\u3067\u3059\uff01<\/p>\n<p>\u30a2\u30f3\u30c9\u30d1\u30c3\u30c9\u306e\u30d6\u30fc\u30b9\u3067\u306f\u672c\u65e5\u3082\u65b0\u3057\u3044\u30af\u30a4\u30ba\u3092\u51fa\u984c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>Day0<\/li>\n<li>Day1 \u5348\u524d \u2190 \u672c\u8a18\u4e8b<\/li>\n<li>Day1 \u5348\u5f8c<\/li>\n<li>Day2 \u5348\u524d<\/li>\n<li>Day2 \u5348\u5f8c<\/li>\n<\/ul>\n<p>\u672c\u8a18\u4e8b\u3067\u306fDay1 \u5348\u524d\u306b\u51fa\u984c\u3057\u305f\u30af\u30a4\u30ba4\u984c\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u89e3\u7b54\u3068\u89e3\u8aac\u306f\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u9589\u3058\u3066\u3044\u308b\u306e\u3067\u3001\u307e\u3060\u89e3\u304b\u308c\u3066\u3044\u306a\u3044\u65b9\u306f\u305c\u3072\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u203b \u30af\u30a4\u30ba\u3067\u4f7f\u7528\u3057\u3066\u3044\u308bSwift\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f6.1.2\u3001\u8a00\u8a9e\u30e2\u30fc\u30c9\u306f6\u3067\u3059\u3002<\/p>\n<pre class=\"code\" data-lang=\"\" data-unlink=\"\">% swift --version   \nswift-driver version: 1.120.5 Apple Swift version 6.1.2 (swiftlang-6.1.2.1.2 clang-1700.0.13.5)\nTarget: arm64-apple-macosx15.0<\/pre>\n<h2 id=\"Q1-\">Q1 \u2605\u2606\u2606\u2606\u2606<\/h2>\n<h3 id=\"\u554f\u984c\">\u554f\u984c<\/h3>\n<p>\u5909\u6570<code>value<\/code>\u306e\u5024\u3092\u6587\u5b57\u5217\u306b\u633f\u5165\u3059\u308b\u30b3\u30fc\u30c9\u3068\u3057\u3066\u6b63\u3057\u3044\u3082\u306e\u3092\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<ul>\n<li>\n<p>A<\/p>\n<pre><code class=\"``swift\">  \"number is $value\"\n<\/code><\/pre>\n<\/li>\n<li>\n<p>B<\/p>\n<pre><code class=\"``swift\">  \"number is ${value}\"\n<\/code><\/pre>\n<\/li>\n<li>\n<p>C<\/p>\n<pre><code class=\"``swift\">  \"number is \\value\"\n<\/code><\/pre>\n<\/li>\n<li>\n<p>D<\/p>\n<pre><code class=\"``swift\">  \"number is \\(value)\"\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<p><summary>\n\u89e3\u7b54\u3068\u89e3\u8aac<\/p>\n<details\/><\/summary>\n<\/p>\n<h3 id=\"\u89e3\u7b54\">\u89e3\u7b54<\/h3>\n<p>D<\/p>\n<h3 id=\"\u89e3\u8aac\">\u89e3\u8aac<\/h3>\n<p>Swift\u3067\u5909\u6570<code>value<\/code>\u306e\u5024\u3092\u6587\u5b57\u5217\u306b\u633f\u5165\u3059\u308b\u306b\u306fD\u306e<code>\"number is \\(value)\"<\/code>\u3068\u3044\u3046\u8a18\u6cd5\u3092\u7528\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synPreProc\">let<\/span> <span class=\"synIdentifier\">value<\/span> <span class=\"synIdentifier\">=<\/span> <span class=\"synConstant\">10<\/span>\nprint(<span class=\"synConstant\">\"number is <\/span><span class=\"synSpecial\">\\(<\/span>value<span class=\"synSpecial\">)<\/span><span class=\"synConstant\">\"<\/span>) \n<\/pre>\n<h2 id=\"Q2-\">Q2 \u2605\u2605\u2606\u2606\u2606<\/h2>\n<h3 id=\"\u554f\u984c-1\">\u554f\u984c<\/h3>\n<p><code>\/* ? *\/<\/code>\u306b\u5f53\u3066\u306f\u3081\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308b\u3082\u306e\u3092\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synPreProc\">struct<\/span> <span class=\"synIdentifier\">FooError<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synType\">Error<\/span> {}\n\n<span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">foo<\/span>() <span class=\"synStatement\">throws<\/span> {}\n\n<span class=\"synStatement\">do<\/span> {\n    <span class=\"synStatement\">try<\/span> foo()\n}  {\n    print(<span class=\"synConstant\">\"FooError\"<\/span>)\n} <span class=\"synStatement\">catch<\/span> {\n    print(error)\n}\n<\/pre>\n<ul>\n<li>\n<p>A<\/p>\n<pre><code class=\"``swift\">  catch FooError\n<\/code><\/pre>\n<\/li>\n<li>\n<p>B<\/p>\n<pre><code class=\"``swift\">  catch FooError()\n<\/code><\/pre>\n<\/li>\n<li>\n<p>C<\/p>\n<pre><code class=\"``swift\">  catch is FooError\n<\/code><\/pre>\n<\/li>\n<li>\n<p>D<\/p>\n<pre><code class=\"``swift\">  catch as FooError\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<p><summary>\n\u89e3\u7b54\u3068\u89e3\u8aac<\/p>\n<details\/><\/summary>\n<\/p>\n<h3 id=\"\u89e3\u7b54-1\">\u89e3\u7b54<\/h3>\n<p>C<\/p>\n<h3 id=\"\u89e3\u8aac-1\">\u89e3\u8aac<\/h3>\n<p><code>FooError<\/code>\u578b\u306e\u30a8\u30e9\u30fc\u3092\u500b\u5225\u306b\u6355\u6349\u3059\u308b\u305f\u3081\u306e\u66f8\u304d\u65b9\u3092\u554f\u3046\u30af\u30a4\u30ba\u3067\u3059\u3002<\/p>\n<p><code>catch<\/code>\u53e5\u306b\u306f<strong>\u30d1\u30bf\u30fc\u30f3<\/strong>\u3092\u66f8\u304d\u307e\u3059\u3002\u30d1\u30bf\u30fc\u30f3\u3068\u306f\u5024\u306e\u69cb\u9020\u3092\u8868\u3057\u305f\u3082\u306e\u3067\u3001\u5024\u306e\u30de\u30c3\u30c1\u3084\u69cb\u9020\u306e\u5206\u89e3\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u5c0f\u96e3\u3057\u3044\u3053\u3068\u3092\u8a00\u3044\u307e\u3057\u305f\u304c\u7c21\u5358\u306b\u8a00\u3048\u3070<code>switch<\/code>\u6587\u306e<code>case<\/code>\u306b\u66f8\u3051\u308b\u3088\u3046\u306a\u3084\u3064\u3067\u3059\u3002<\/p>\n<p>\u30d1\u30bf\u30fc\u30f3\u306f\u8272\u3005\u3042\u308b\u306e\u3067\u3001\u8208\u5473\u304c\u3042\u308b\u65b9\u306f\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<br \/><a target=\"_blank\" href=\"https:\/\/docs.swift.org\/swift-book\/documentation\/the-swift-programming-language\/patterns\">The Swift Programming Language &#8211; Patterns<\/a><\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\">\n<span class=\"synStatement\">switch<\/span> value {\n<span class=\"synStatement\">case<\/span> <span class=\"synStatement\">is<\/span> <span class=\"synType\">Foo<\/span><span class=\"synSpecial\">:<\/span> \n    <span class=\"synStatement\">break<\/span>\n<span class=\"synStatement\">case<\/span> <span class=\"synConstant\">1<\/span><span class=\"synIdentifier\">...<\/span><span class=\"synConstant\">5<\/span><span class=\"synSpecial\">:<\/span> \n    <span class=\"synStatement\">break<\/span>\n<span class=\"synStatement\">case<\/span> _<span class=\"synSpecial\">:<\/span> \n    <span class=\"synStatement\">break<\/span>\n}\n<\/pre>\n<p>\u9078\u629e\u80a2\u306e\u306a\u304b\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308b\u306e\u306fC\u3067\u3059\u3002<code>is FooError<\/code>\u306f<a target=\"_blank\" href=\"https:\/\/docs.swift.org\/swift-book\/documentation\/the-swift-programming-language\/patterns\/#Type-Casting-Patterns\">type-casting\u30d1\u30bf\u30fc\u30f3<\/a>\u3068\u547c\u3070\u308c\u3001\u5bfe\u8c61\u306e\u5024\uff08\u3053\u3053\u3067\u306f\u6295\u3052\u3089\u308c\u305f\u30a8\u30e9\u30fc\uff09\u304c<code>FooError<\/code>\u578b\u3067\u3042\u308c\u3070\u30de\u30c3\u30c1\u3057\u307e\u3059\u3002<\/p>\n<p>\u9078\u629e\u80a2A\u306e<code>FooError<\/code>\uff08\u578b\u540d\u306e\u307f\u66f8\u3044\u305f\u3082\u306e\uff09\u3084\u9078\u629e\u80a2D\u306e<code>as FooError<\/code>\u306e\u3088\u3046\u306a\u30d1\u30bf\u30fc\u30f3\u306f\u5b58\u5728\u305b\u305a\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u305b\u3093\u3002<code>as<\/code>\u3092\u4f7f\u3063\u305ftype-casting\u30d1\u30bf\u30fc\u30f3\u306f\u6b63\u3057\u304f\u306f<code>catch let error as FooError<\/code>\u306e\u3088\u3046\u306a\u5f62\u3067\u3059\u3002\u3053\u306e\u5834\u5408\u306f\u5bfe\u8c61\u306e\u5024\u304c<code>FooError<\/code>\u578b\u3067\u3042\u308c\u3070\u30de\u30c3\u30c1\u3057\u3001<code>FooError<\/code>\u578b\u306b\u30ad\u30e3\u30b9\u30c8\u3055\u308c\u305f\u5024\u304c\u5909\u6570<code>error<\/code>\u306b\u30d0\u30a4\u30f3\u30c9\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u9078\u629e\u80a2B\u306f\u5c11\u3057\u7279\u6b8a\u3067\u3059\u3002<code>FooError()<\/code>\u306f<a target=\"_blank\" href=\"https:\/\/docs.swift.org\/swift-book\/documentation\/the-swift-programming-language\/patterns\/#Expression-Pattern\">expression\u30d1\u30bf\u30fc\u30f3<\/a>\u3068\u3057\u3066\u89e3\u91c8\u3067\u304d\u307e\u3059\u304c\u3001expression\u30d1\u30bf\u30fc\u30f3\u3068\u306e\u30de\u30c3\u30c1\u30f3\u30b0\u3067\u306f\u305d\u308c\u306b\u5bfe\u5fdc\u3059\u308b<code>~=<\/code>\u6f14\u7b97\u5b50\uff08\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u6f14\u7b97\u5b50\uff09\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u5bfe\u8c61\u306e\u5024<code>any Error<\/code>\u3068expression\u30d1\u30bf\u30fc\u30f3<code>FooError()<\/code>\u3068\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3092\u62c5\u3046\u4ee5\u4e0b\u306e\u3088\u3046\u306a<code>~=<\/code>\u6f14\u7b97\u5b50\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\">\n<span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">~=<\/span> (pattern<span class=\"synSpecial\">:<\/span> <span class=\"synType\">FooError<\/span>, value<span class=\"synSpecial\">:<\/span> <span class=\"synType\">any<\/span> Error) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span>\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306a\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u63d0\u4f9b\u3055\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u81ea\u524d\u3067\u5b9f\u88c5\u3057\u306a\u3044\u9650\u308a<code>catch FooError()<\/code>\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u3053\u3067\u3001<code>enum<\/code>\u3067\u5b9a\u7fa9\u3057\u305f\u30a8\u30e9\u30fc\u578b\u306a\u3089\u7279\u306b\u4f55\u3082\u3057\u306a\u304f\u3066\u3082<code>catch EnumError.foo<\/code>\u306e\u3088\u3046\u306b\u66f8\u3051\u308b\u306e\u3067\u306f\uff1f\u3068\u601d\u3063\u305f\u65b9\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u78ba\u304b\u306b\u3053\u308c\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308b\u306e\u3067\u3059\u304c\u3001\u5b9f\u306f\u3053\u308c\u306f<a target=\"_blank\" href=\"https:\/\/docs.swift.org\/swift-book\/documentation\/the-swift-programming-language\/patterns\/#Enumeration-Case-Pattern\">enumeration case\u30d1\u30bf\u30fc\u30f3<\/a>\u3068\u3044\u3046\u5225\u306e\u30d1\u30bf\u30fc\u30f3\u3068\u3057\u3066\u89e3\u91c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u3061\u3089\u3067\u306f\u4e0a\u8a18\u306e\u3088\u3046\u306a<code>~=<\/code>\u6f14\u7b97\u5b50\u306f\u5fc5\u8981\u3068\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<h2 id=\"Q3-\">Q3 \u2605\u2605\u2605\u2606\u2606<\/h2>\n<h3 id=\"\u554f\u984c-2\">\u554f\u984c<\/h3>\n<p>\u6b21\u306e\u30b3\u30fc\u30c9\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u901a\u3059\u305f\u3081\u306b\u3001<code>MyInt<\/code>\u304c\u6700\u4f4e\u9650\u9069\u5408\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\uff08\u5fc5\u8981\u6700\u4f4e\u9650\u306e\u5b9f\u88c5\u3060\u3051\u8981\u6c42\u3055\u308c\u308b\u3082\u306e\uff09\u3092\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synPreProc\">struct<\/span> <span class=\"synIdentifier\">MyInt<\/span> {\n    <span class=\"synPreProc\">var<\/span> <span class=\"synIdentifier\">value<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synType\">Int<\/span>\n}\n\n<span class=\"synPreProc\">let<\/span> <span class=\"synIdentifier\">five<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synType\">MyInt<\/span> <span class=\"synIdentifier\">=<\/span> <span class=\"synConstant\">5<\/span>\n<\/pre>\n<ul>\n<li>A: <code>BinaryInteger<\/code><\/li>\n<li>B: <code>Numeric<\/code><\/li>\n<li>C: <code>IntegerLiteralType<\/code><\/li>\n<li>D: <code>ExpressibleByIntegerLiteral<\/code><\/li>\n<\/ul>\n<p><summary>\n\u89e3\u7b54\u3068\u89e3\u8aac<\/p>\n<details\/><\/summary>\n<\/p>\n<h3 id=\"\u89e3\u7b54-2\">\u89e3\u7b54<\/h3>\n<p>D<\/p>\n<h3 id=\"\u89e3\u8aac-2\">\u89e3\u8aac<\/h3>\n<p><code>5<\/code>\u3084<code>0.5<\/code>\u3001<code>\"abc\"<\/code>\u3001<code>true<\/code>\u3001<code>nil<\/code>\u306a\u3069\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306b\u76f4\u63a5\u66f8\u304b\u308c\u305f\u5024\u305d\u306e\u3082\u306e\u3092\u30ea\u30c6\u30e9\u30eb\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30af\u30a4\u30ba\u306f\u3001\u72ec\u81ea\u306e\u578b<code>MyInt<\/code>\u3092<code>5<\/code>\u306e\u3088\u3046\u306a\u6574\u6570\u30ea\u30c6\u30e9\u30eb\u3067\u521d\u671f\u5316\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u65b9\u6cd5\u3092\u554f\u3046\u554f\u984c\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u306fSwift\u306e\u30ea\u30c6\u30e9\u30eb\u81ea\u4f53\u306b\u306f\u578b\u304c\u3042\u308a\u307e\u305b\u3093\u3002<code>5<\/code>\u3068\u66f8\u3044\u305f\u304b\u3089\u3068\u3044\u3063\u3066<code>Int<\/code>\u578b\u3067\u3042\u308b\u3068\u306f\u9650\u3089\u305a\u3001<code>\"a\"<\/code>\u3068\u66f8\u3044\u305f\u304b\u3089\u3068\u3044\u3063\u3066<code>String<\/code>\u578b\u3067\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/p>\n<p><code>let a = 5<\/code>\u3068\u66f8\u3044\u305f\u3068\u304d\u306b<code>a<\/code>\u304c<code>Int<\/code>\u578b\u3068\u63a8\u8ad6\u3055\u308c\u308b\u306e\u306f\u3001\u6574\u6570\u30ea\u30c6\u30e9\u30eb\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067<code>Int<\/code>\u578b\u3068\u3057\u3066\u63a8\u8ad6\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3082\u3001<code>5<\/code>\u3068\u3044\u3046<code>Int<\/code>\u3092<code>Int8<\/code>\u578b\u306b\u5909\u63db\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001<code>5<\/code>\u3068\u3044\u3046\u30ea\u30c6\u30e9\u30eb\u304b\u3089\u76f4\u63a5<code>Int8<\/code>\u578b\u306e\u5024\u3092\u4f5c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synPreProc\">let<\/span> <span class=\"synIdentifier\">a<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synType\">Int8<\/span> <span class=\"synIdentifier\">=<\/span> <span class=\"synConstant\">5<\/span>\n<\/pre>\n<p>\u305d\u3057\u3066\u3053\u306e\u6a5f\u80fd\u3092\u5b9f\u73fe\u3057\u3066\u3044\u308b\u306e\u306f\u5404\u30ea\u30c6\u30e9\u30eb\u306b\u5bfe\u5fdc\u3059\u308b<code>ExpressibleByXXLiteral<\/code>\u3068\u3044\u3046\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u4f8b\u3048\u3070\u6574\u6570\u30ea\u30c6\u30e9\u30eb\u306b\u306f<code>ExpressibleByIntegerLiteral<\/code>\u3001\u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u306b\u306f<code>ExpressibleByStringLiteral<\/code>\u304c\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/p>\n<p><code>ExpressibleByIntegerLiteral<\/code>\u306b\u9069\u5408\u3055\u305b\u305f\u578b\u306f\u6574\u6570\u30ea\u30c6\u30e9\u30eb\u3067\u5024\u3092\u521d\u671f\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3068\u3044\u3046\u308f\u3051\u3067\u7b54\u3048\u306fD\u3067\u3059\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synPreProc\">extension<\/span> <span class=\"synIdentifier\">MyInt<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synType\">ExpressibleByIntegerLiteral<\/span> {\n    <span class=\"synIdentifier\">init<\/span>(integerLiteral value<span class=\"synSpecial\">:<\/span> <span class=\"synType\">IntegerLiteralType<\/span>) {\n        <span class=\"synIdentifier\">self<\/span>.value <span class=\"synIdentifier\">=<\/span> value\n    }\n}\n\n<span class=\"synPreProc\">let<\/span> <span class=\"synIdentifier\">five<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synType\">MyInt<\/span> <span class=\"synIdentifier\">=<\/span> <span class=\"synConstant\">5<\/span> \n<\/pre>\n<p>\u9078\u629e\u80a2A\u306e<a target=\"_blank\" href=\"https:\/\/developer.apple.com\/documentation\/swift\/binaryinteger\"><code>BinaryInteger<\/code><\/a>\u306f2\u9032\u6570\u3067\u8868\u73fe\u3055\u308c\u308b\u6574\u6570\u3092\u8868\u3059\u30d7\u30ed\u30c8\u30b3\u30eb\u3001\u9078\u629e\u80a2B\u306e<a target=\"_blank\" href=\"https:\/\/developer.apple.com\/documentation\/swift\/numeric\"><code>Numeric<\/code><\/a>\u306f\u639b\u3051\u7b97\uff08\u3068\u8db3\u3057\u7b97\uff09\u304c\u3067\u304d\u308b\u5024\u3092\u8868\u3059\u30d7\u30ed\u30c8\u30b3\u30eb\u3001\u9078\u629e\u80a2C\u306e<a target=\"_blank\" href=\"https:\/\/developer.apple.com\/documentation\/swift\/integerliteraltype\"><code>IntegerLiteralType<\/code><\/a>\u306f\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u306f\u306a\u304f<code>Int<\/code>\u306e\u578b\u30a8\u30a4\u30ea\u30a2\u30b9\u3067\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b<code>BinaryInteger<\/code>\u306f<code>Numeric<\/code>\u3092\u3001<code>Numeric<\/code>\u306f<code>ExpressibleByIntegerLiteral<\/code>\u3092\u7d99\u627f\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u5b9f\u306f<code>MyInt<\/code>\u3092\u3053\u308c\u3089\u306e\u3044\u305a\u308c\u304b\u306b\u9069\u5408\u3055\u305b\u308c\u3070<code>let five: MyInt = 5<\/code>\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u3059\u3002\u3068\u306f\u3044\u3048\u554f\u984c\u6587\u306b\u306f\u300c<strong>\u6700\u4f4e\u9650\u9069\u5408\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044<\/strong>\u30d7\u30ed\u30c8\u30b3\u30eb\u300d\u3068\u3042\u308b\u306e\u3067\u3001\u6b63\u89e3\u306f\u3084\u306f\u308a<code>ExpressibleByIntegerLiteral<\/code>\u3067\u3059\u3002<\/p>\n<p><code>IntegerLiteralType<\/code>\u306f\u4e0a\u66f8\u304d\u3059\u308b\u3068\u9762\u767d\u3044\u3053\u3068\u304c\u8d77\u304d\u308b\u306e\u3067\u3059\u304c\u3001\u305d\u308c\u306f\u307e\u305f\u5225\u306e\u6a5f\u4f1a\u306b\u3002<\/p>\n<h2 id=\"Q4-\">Q4 \u2605\u2605\u2605\u2605\u2606<\/h2>\n<h3 id=\"\u554f\u984c-3\">\u554f\u984c<\/h3>\n<p>\u6b21\u306e\u306a\u304b\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308b\u30b3\u30fc\u30c9\u3092\u3059\u3079\u3066\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002<br \/>\n\u305f\u3060\u3057\u3001\u72ec\u81ea\u306e<code>==<\/code>\u95a2\u6570\u306f\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u3082\u306e\u3068\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\n<p>A<\/p>\n<pre><code class=\"``swift\">  func checkEquality(_ lhs: AnyHashable, _ rhs: AnyHashable) -&gt; Bool {\n      lhs == rhs\n  }\n<\/code><\/pre>\n<\/li>\n<li>\n<p>B<\/p>\n<pre><code class=\"``swift\">  func checkEquality(_ lhs: any Equatable, _ rhs: any Equatable) -&gt; Bool {\n      lhs == rhs\n  }\n<\/code><\/pre>\n<\/li>\n<li>\n<p>C<\/p>\n<pre><code class=\"``swift\">  func checkEquality(_ lhs: some Equatable, _ rhs: some Equatable) -&gt; Bool {\n      lhs == rhs\n  }\n<\/code><\/pre>\n<\/li>\n<li>\n<p>D<\/p>\n<pre><code class=\"``swift\">  func checkEquality<t>(_ lhs: T, _ rhs: T) -&gt; Bool where T: Equatable {\n      lhs == rhs\n  }\n<\/t><\/code><\/pre>\n<\/li>\n<\/ul>\n<p><summary>\n\u89e3\u7b54\u3068\u89e3\u8aac<\/p>\n<details\/><\/summary>\n<\/p>\n<h3 id=\"\u89e3\u7b54-3\">\u89e3\u7b54<\/h3>\n<p>A\u3001D<\/p>\n<h3 id=\"\u89e3\u8aac-3\">\u89e3\u8aac<\/h3>\n<p>\u5404\u9078\u629e\u80a2\u3092\u691c\u8a0e\u3059\u308b\u524d\u306b\u3001<code>==<\/code>\u6f14\u7b97\u5b50\u306b\u3064\u3044\u3066\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3042\u308b\u578b<code>A<\/code>\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9<code>a<\/code>\u3001\u578b<code>B<\/code>\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9<code>b<\/code>\u306b\u3064\u3044\u3066\u8003\u3048\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u9593\u3067<code>a == b<\/code>\u306e\u3088\u3046\u306b<code>==<\/code>\u6f14\u7b97\u5b50\u3092\u5229\u7528\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u305d\u308c\u306b\u5bfe\u5fdc\u3059\u308b<code>==<\/code>\u6f14\u7b97\u5b50\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u5b9f\u88c5\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\">\n<span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">==<\/span> (lhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">A<\/span>, rhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">B<\/span>) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span> { <span class=\"synIdentifier\">...<\/span> }\n\n\n<span class=\"synPreProc\">extension<\/span> <span class=\"synIdentifier\">A<\/span> {\n    <span class=\"synStatement\">static<\/span> <span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">==<\/span> (lhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">A<\/span>, rhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">B<\/span>) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span> { <span class=\"synIdentifier\">...<\/span> }\n}\n\n\n(<span class=\"synIdentifier\">==<\/span>)(a, b) \n<\/pre>\n<p>\u305d\u3057\u3066\u3001<a target=\"_blank\" href=\"https:\/\/developer.apple.com\/documentation\/swift\/equatable\"><code>Equatable<\/code><\/a>\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u9069\u5408\u3057\u305f\u578b\u306f\u5f8c\u306b\u793a\u3059<code>==<\/code>\u6f14\u7b97\u5b50\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u5b9f\u88c5\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001<code>lhs == rhs<\/code>\u304c\u901a\u308b\u304b\u3069\u3046\u304b\u306f<\/p>\n<ul>\n<li><code>Equatable<\/code>\u7531\u6765\u306e<code>==<\/code>\u5b9f\u88c5\u304c\u5229\u7528\u3067\u304d\u308b\u304b<\/li>\n<li>\u307e\u305f\u306f<code>Equatable<\/code>\u7531\u6765\u3067\u306a\u3044<code>==<\/code>\u5b9f\u88c5\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n<\/ul>\n<p>\u306e2\u70b9\u3092\u78ba\u8a8d\u3059\u308c\u3070\u826f\u3044\u3067\u3059\u3002\u305d\u3057\u3066\u4eca\u56de\u306e\u9078\u629e\u80a2\u306b\u304a\u3044\u3066\u5f8c\u8005\u306f\u63d0\u4f9b\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u524d\u8005\u306e\u300c<code>Equatable<\/code>\u7531\u6765\u306e<code>==<\/code>\u5b9f\u88c5\u304c\u5229\u7528\u3067\u304d\u308b\u304b\u300d\u3060\u3051\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308c\u3070OK\u3067\u3059\u3002<\/p>\n<p>\u3067\u306f\u305d\u306e\u6761\u4ef6\u3092\u8abf\u3079\u308b\u305f\u3081\u306b<code>Equatable<\/code>\u306e\u5b9a\u7fa9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synStatement\">public<\/span> <span class=\"synPreProc\">protocol<\/span> <span class=\"synIdentifier\">Equatable<\/span> {\n    <span class=\"synStatement\">static<\/span> <span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">==<\/span> (lhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">Self<\/span>, rhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">Self<\/span>) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span>\n}\n<\/pre>\n<p><code>Equatable<\/code>\u304c\u8981\u6c42\u3059\u308b<code>==<\/code>\u30e1\u30bd\u30c3\u30c9\u306b\u306f\u3001<strong><code>lhs<\/code>\u3068<code>rhs<\/code>\u304c\u3044\u305a\u308c\u3082\u540c\u3058<code>Self<\/code>\u578b\u3067\u3042\u308b<\/strong>\u3068\u3044\u3046\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002<code>Self<\/code>\u3068\u306f<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u305f\u578b\u81ea\u8eab\u3067\u3059\u3002<strong>\u91cd\u8981\u306a\u306e\u306f\u4e21\u8fba\u304c\u540c\u3058\u578b\u3067\u3042\u308b\u3053\u3068<\/strong>\u3067\u3059\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synPreProc\">extension<\/span> <span class=\"synIdentifier\">Foo<\/span><span class=\"synSpecial\">:<\/span> <span class=\"synType\">Equatable<\/span> {\n    \n    <span class=\"synStatement\">static<\/span> <span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">==<\/span> (lhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">Foo<\/span>, rhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">Foo<\/span>) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span> { <span class=\"synIdentifier\">...<\/span> }\n}\n<\/pre>\n<p>\u3053\u306e\u5236\u7d04\u306b\u3088\u308a\u3001\u4f8b\u3048\u3070<code>Int<\/code>\u540c\u58eb\u3084<code>String<\/code>\u540c\u58eb\u306e\u6bd4\u8f03\u306f\u3067\u304d\u308b\u4e00\u65b9\u3001<code>Int<\/code>\u3068<code>String<\/code>\u9593\u3067\u306e\u6bd4\u8f03\u306f\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synConstant\">10<\/span> <span class=\"synIdentifier\">==<\/span> <span class=\"synConstant\">10<\/span> \n<span class=\"synConstant\">\"a\"<\/span> <span class=\"synIdentifier\">==<\/span> <span class=\"synConstant\">\"a\"<\/span> \n<span class=\"synConstant\">10<\/span> <span class=\"synIdentifier\">==<\/span> <span class=\"synConstant\">\"a\"<\/span> \n<\/pre>\n<p>\u4ee5\u4e0a\u3092\u8e0f\u307e\u3048\u308b\u3068\u3001<code>lhs == rhs<\/code>\u3068\u3044\u3046\u5f0f\u306b\u304a\u3044\u3066<\/p>\n<ul>\n<li>\u2460 <code>lhs<\/code>\u306e\u578b<code>T<\/code>\u304c<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u3066\u3044\u308b<\/li>\n<li>\u2461 <code>rhs<\/code>\u306e\u578b\u3082<code>T<\/code>\u3067\u3042\u308b<\/li>\n<\/ul>\n<p>\u3068\u3044\u3046\u6761\u4ef6\u3092\u5171\u306b\u6e80\u305f\u3057\u3066\u3044\u308c\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a<code>Equatable<\/code>\u7531\u6765\u306e<code>==<\/code>\u5b9f\u88c5\u304c\u5229\u7528\u3067\u304d\u308b\u305f\u3081\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synStatement\">static<\/span> <span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">==<\/span> (lhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">T<\/span>, rhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">T<\/span>) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span> { <span class=\"synIdentifier\">...<\/span> }\n<\/pre>\n<p>\u305d\u308c\u3067\u306f\u3053\u308c\u3089\u306e\u6761\u4ef6\u2460\u2461\u3092\u3075\u307e\u3048\u3066\u9078\u629e\u80a2\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4 id=\"AOK\">A\uff1aOK<\/h4>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6761\u4ef6\u2460\u2461\u3092\u5171\u306b\u6e80\u305f\u3057\u3066\u3044\u308b\u305f\u3081\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u2460 <code>lhs<\/code>\u306e\u578b<code>AnyHashable<\/code>\u306f<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u3066\u3044\u308b<\/li>\n<li>\u2461 <code>rhs<\/code>\u306e\u578b\u3082<code>AnyHashable<\/code>\u3067\u3042\u308b<\/li>\n<\/ul>\n<p>\u7e70\u308a\u8fd4\u3057\u306b\u306a\u308a\u307e\u3059\u304c<code>AnyHashable<\/code>\u306f<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u305f\u3081\u5fc5\u305a\u4ee5\u4e0b\u306e<code>==<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u6301\u3063\u3066\u304a\u308a\u3001\u3053\u308c\u3092\u5229\u7528\u3067\u304d\u308b\u308f\u3051\u3067\u3059\u306d\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synStatement\">static<\/span> <span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">==<\/span> (lhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">AnyHashable<\/span>, rhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">AnyHashable<\/span>) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span>\n<\/pre>\n<h4 id=\"BNG\">B\uff1aNG<\/h4>\n<p><code>lhs<\/code>\u306e\u578b<code>any Equatable<\/code>\u306f<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u6761\u4ef6\u2460\u3092\u6e80\u305f\u305b\u305a\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u306a\u305c<code>any Equatable<\/code>\u304c<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u3066\u3044\u306a\u3044\u306e\u304b\u306e\u8aac\u660e\u306f\u5272\u611b\u3057\u307e\u3059\u304c\u3001\u6c17\u306b\u306a\u308b\u65b9\u306f&#8221;self-conformance&#8221;\u3068\u3044\u3046\u30ef\u30fc\u30c9\u3067\u8abf\u3079\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h4 id=\"CNG\">C\uff1aNG<\/h4>\n<p><code>lhs<\/code>\u306e\u578b<code>some Equatable<\/code>\u306f<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6761\u4ef6\u2460\u306f\u6e80\u305f\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u4e00\u898b<code>lhs<\/code>\u3068<code>rhs<\/code>\u306f\u3069\u3061\u3089\u3082\u540c\u3058<code>some Equatable<\/code>\u578b\u306b\u898b\u3048\u308b\u306e\u3067\u6761\u4ef6\u2461\u3082\u6e80\u305f\u3055\u308c\u305d\u3046\u3067\u3059\u304c\u3001<code>some Equatable<\/code>\u3068\u306f\u3042\u304f\u307e\u3067\u300c<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u305f\u4f55\u304b\u300d\u3067\u3057\u304b\u306a\u304f\u3001<strong><code>lhs<\/code>\u3068<code>rhs<\/code>\u304c\u540c\u3058\u578b\u3067\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093<\/strong>\u3002\u4f8b\u3048\u3070<code>lhs<\/code>\u306b\u306f<code>Int<\/code>\u578b\u3001<code>rhs<\/code>\u306b\u306f<code>String<\/code>\u578b\u306e\u5024\u304c\u6e21\u3063\u3066\u304f\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"code lang-swift\" data-lang=\"swift\" data-unlink=\"\"><span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">checkEquality<\/span>(_ lhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">some<\/span> Equatable, _ rhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">some<\/span> Equatable) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span> { <span class=\"synIdentifier\">...<\/span> }\n\n\n<span class=\"synPreProc\">func<\/span> <span class=\"synIdentifier\">checkEquality<\/span><span class=\"synSpecial\"><span class=\"synIdentifier\">T1<\/span><span class=\"synSpecial\">, <\/span><span class=\"synIdentifier\">T2<\/span><span class=\"synSpecial\">&gt;<\/span>(_ lhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">T1<\/span>, _ rhs<span class=\"synSpecial\">:<\/span> <span class=\"synType\">T2<\/span>) <span class=\"synSpecial\">-&gt;<\/span> <span class=\"synType\">Bool<\/span> <span class=\"synStatement\">where<\/span> T1<span class=\"synSpecial\">:<\/span> <span class=\"synType\">Equatable<\/span>, T2<span class=\"synSpecial\">:<\/span> <span class=\"synType\">Equatable<\/span> { <span class=\"synIdentifier\">...<\/span> }\n\n\ncheckEquality(<span class=\"synConstant\">10<\/span>, <span class=\"synConstant\">\"a\"<\/span>)\n<\/span><\/pre>\n<p>\u3057\u305f\u304c\u3063\u3066\u6761\u4ef6\u2461\u3092\u6e80\u305f\u3057\u3066\u304a\u3089\u305a\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u305b\u3093\u3002\u300c<code>lhs<\/code>\u3068<code>rhs<\/code>\u306f\u540c\u3058\u578b\u3067\u3042\u308b\u300d\u3068\u3044\u3046\u5236\u7d04\u3092\u8ab2\u3059\u305f\u3081\u306b\u306f\u3001\u6b21\u306e\u9078\u629e\u80a2D\u306e\u3088\u3046\u306b\u578b\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5c0e\u5165\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h4 id=\"DOK\">D\uff1aOK<\/h4>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6761\u4ef6\u2460\u2461\u3092\u5171\u306b\u6e80\u305f\u3057\u3066\u3044\u308b\u305f\u3081\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u901a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u2460 <code>lhs<\/code>\u306e\u578b<code>T<\/code>\u306f<code>Equatable<\/code>\u306b\u9069\u5408\u3057\u3066\u3044\u308b<\/li>\n<li>\u2461 <code>rhs<\/code>\u306e\u578b\u3082<code>T<\/code>\u3067\u3042\u308b<\/li>\n<\/ul>\n<p>\u4eca\u56de\u3082\u9577\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u304c\u3001\u3053\u3053\u307e\u3067\u8aad\u3093\u3067\u304f\u3060\u3055\u308a\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<br \/>\u611f\u60f3\u7b49\u304a\u5f85\u3061\u3057\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5348\u5f8c\u3082\u65b0\u3057\u3044\u30af\u30a4\u30ba\u304c\u51fa\u984c\u3055\u308c\u308b\u306e\u3067\u305c\u3072\u307e\u305f\u30a2\u30f3\u30c9\u30d1\u30c3\u30c9\u30d6\u30fc\u30b9\u307e\u3067\u904a\u3073\u306b\u304d\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<p>Day2\u306b\u306fTrack B\u306b\u306611:25\u3088\u308a\u300e<a target=\"_blank\" href=\"https:\/\/fortee.jp\/iosdc-japan-2025\/proposal\/324484f6-bc04-4c3d-ada6-f83bab0dd114\">\u30cd\u30a4\u30c6\u30a3\u30d6\u88fd\u30ac\u30f3\u30c8\u30c1\u30e3\u30fc\u30c8UI\u3092\u4f5c\u3063\u3066\u5b66\u3076UICollectionViewLayout\u306e\u5a01\u529b<\/a>\u300f\u3068\u3044\u3046\u30bf\u30a4\u30c8\u30eb\u3067\u767b\u58c7\u3057\u307e\u3059\u306e\u3067\u3001\u305d\u3061\u3089\u3082\u305c\u3072\u304a\u8d8a\u3057\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><iframe src=\"https:\/\/hatenablog-parts.com\/embed?url=https%3A%2F%2Ffortee.jp%2Fiosdc-japan-2025%2Fproposal%2F324484f6-bc04-4c3d-ada6-f83bab0dd114\" title=\"\u30cd\u30a4\u30c6\u30a3\u30d6\u88fd\u30ac\u30f3\u30c8\u30c1\u30e3\u30fc\u30c8UI\u3092\u4f5c\u3063\u3066\u5b66\u3076UICollectionViewLayout\u306e\u5a01\u529b\" class=\"embed-card embed-webcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 155px; max-width: 500px; margin: 10px 0px;\" loading=\"lazy\"><\/iframe><cite class=\"hatena-citation\"><a 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href=\"https:\/\/fortee.jp\/iosdc-japan-2025\/proposal\/ecccc3fc-9aff-4c2f-b050-81da240dc680\">fortee.jp<\/a><\/cite><\/p>\n<p>\u5f15\u304d\u7d9a\u304diOSDC\u697d\u3057\u3093\u3067\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<\/div>\n<p><script>(function(d, s, id) {\n  var js, fjs = d.getElementsByTagName(s)[0];\n  if (d.getElementById(id)) return;\n  js = d.createElement(s); js.id = id;\n  js.src = \"\/\/connect.facebook.net\/ja_JP\/sdk.js#xfbml=1&appId=719729204785177&version=v17.0\";\n  fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));<\/script><br \/>\n<br \/>\n<br \/><a href=\"https:\/\/tech.andpad.co.jp\/entry\/2025\/09\/21\/130000\">\u5143\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3059\u308b <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\u3053\u3093\u306b\u3061\u306f\u3001\u897f @jrsaruo_tech \u3067\u3059\u3002 iOSDC Japan 2025 Day1 \u524d\u534a\u6226\u3067\u3059\uff01 \u30a2\u30f3\u30c9\u30d1\u30c3\u30c9\u306e\u30d6\u30fc\u30b9\u3067\u306f\u672c\u65e5\u3082\u65b0\u3057\u3044\u30af\u30a4\u30ba\u3092\u51fa\u984c\u3057\u3066\u3044\u307e\u3059\u3002 Day0 Day1 \u5348\u524d \u2190 \u672c\u8a18\u4e8b Day1  [&hellip;]","protected":false},"author":1,"featured_media":6345,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-6344","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company-tec"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>iOSDC Japan 2025 \u30a2\u30f3\u30c9\u30d1\u30c3\u30c9Swift\u30af\u30a4\u30ba\u89e3\u8aac - Day1 \u5348\u524d - \u30dd\u30b1\u30b3\u30f3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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