{"id":45533,"date":"2023-08-13T23:44:10","date_gmt":"2024-01-20T12:48:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45533-2\/"},"modified":"2024-04-30T18:25:25","modified_gmt":"2024-04-30T10:25:25","slug":"45533-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45533-2\/","title":{"rendered":""},"content":{"rendered":"<p>\u9023\u8a18\u4e8b\u76ee\u6b21<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ruby\/Rust \u9023\u643a (1)\u3000\u76ee\u7684<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ruby\/Rust \u9023\u643a (2)\u3000\u624b\u6bb5<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ruby\/Rust \u9023\u643a (3)\u3000FFI \u3067\u6570\u5024\u8a08\u7b97<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ruby\/Rust \u9023\u643a (4)\u3000Rutie \u3067\u6570\u5024\u8a08\u7b97\u2460<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ruby\/Rust \u9023\u643a (5)\u3000Rutie \u3067\u6570\u5024\u8a08\u7b97\u2461\u3000\u30d9\u30b8\u30a8<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ruby\/Rust \u9023\u643a (6)\u3000\u5f62\u614b\u7d20\u306e\u62bd\u51fa<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Ruby\/Rust \u9023\u643a (7)\u3000\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u6642\u30d3\u30eb\u30c9\u306e Rust \u62e1\u5f35 gem \u3092\u4f5c\u308b<\/ul>\n<h1>\u306f\u3058\u3081\u306b<\/h1>\n<p>FFI\uff08Foreign Function Interface\uff09\u3092\u4f7f\u3063\u3066\uff0c\u7c21\u5358\u306a\u6570\u5024\u8a08\u7b97\u3092\u884c\u3046 Rust \u306e\u95a2\u6570\u3092 Ruby \u304b\u3089\u547c\u3076\uff0c\u3068\u3044\u3046\u3053\u3068\u3092\u3084\u3063\u3066\u307f\u3088\u3046\u3002<br \/>\n\u65e2\u306b\u3053\u306e\u3088\u3046\u306a\u30c6\u30fc\u30de\u306e\u8a18\u4e8b\u306f\u8907\u6570\u5b58\u5728\u3059\u308b\u306e\u3067 N \u756a\u714e\u3058\u306a\u306e\u3060\u304c\u3002<\/p>\n<p>\u306a\u304a\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">macOS 10.13.6\uff08High Sierra\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rust 1.46.0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Ruby 2.7.1<\/ul>\n<p>\u3092\u4f7f\u7528\u3057\u305f\u3002<\/p>\n<h1>\u984c\u6750<\/h1>\n<p>\u3069\u3046\u305b\u306a\u3089\u30d5\u30a3\u30dc\u30ca\u30c3\u30c1\u6570\u3088\u308a\u5b9f\u7528\u6027\u306e\u3042\u308b\u3082\u306e\u304c\u4f5c\u308a\u305f\u3044\u3002<br \/>\n\u3088\u3057\uff0c\u30a2\u30ec\u306b\u3057\u3088\u3046\u3002<br \/>\nMath.#hypot \u306e 3 \u5909\u6570\u7248\u3060\u30023 \u6b21\u5143\u7248\u3068\u8a00\u3063\u3066\u3082\u3044\u3044\u3002<\/p>\n<p>Math.hypot \u3068\u3044\u3046\u5947\u5999\u306a\u540d\u524d\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u95a2\u6570\u306f\uff0c\u8981\u3059\u308b\u306b<\/p>\n<pre class=\"post-pre\"><code>\\sqrt{ x^2 + y^2 }\r\n<\/code><\/pre>\n<p>\u3092\u8a08\u7b97\u3057\u3066\u304f\u308c\u308b\u3082\u306e\u3002<br \/>\n\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u76f4\u4ea4\u3059\u308b\u4e8c\u8fba\u306e\u9577\u3055 $x$, $y$ \u304b\u3089\u659c\u8fba\uff08hypotenuse\uff09\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u306e\u3067\u3053\u306e\u540d\u304c\u3042\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">p<\/span> <span class=\"no\">Math<\/span><span class=\"p\">.<\/span><span class=\"nf\">hypot<\/span><span class=\"p\">(<\/span><span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"mi\">4<\/span><span class=\"p\">)<\/span> <span class=\"c1\"># =&gt; 5.0<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u308c\u306e 3 \u5909\u6570\u7248\u306f\uff0c\u8981\u3059\u308b\u306b<\/p>\n<pre class=\"post-pre\"><code>\\sqrt{ x^2 + y^2 + z^2 }\r\n<\/code><\/pre>\n<p>\u3092\u8a08\u7b97\u3059\u308b\u95a2\u6570\u3068\u3044\u3046\u308f\u3051\u3060\u3002<\/p>\n<h2>\u52d5\u6a5f<\/h2>\n<p>\u3069\u3046\u3057\u3066 Math.hypot \u306e 3 \u5909\u6570\u7248\u304c\u6b32\u3057\u3044\u304b\uff0c\u3068\u3044\u3046\u8a71\u3092\u3059\u308b\u3002\u8a18\u4e8b\u306e\u4e3b\u984c\u3068\u95a2\u4fc2\u306a\u3044\u306e\u3067\uff0c\u6b21\u7bc0\u306b\u98db\u3093\u3067\u3082\u3089\u3063\u3066\u69cb\u308f\u306a\u3044\u3002<\/p>\n<p>\u3053\u306e\u95a2\u6570\u306f\uff0c\u5e73\u9762\u4e0a\u306e 2 \u5ea7\u6a19\u304c\u4e0e\u3048\u3089\u308c\u305f\u3068\u304d\uff0c\u305d\u306e 2 \u70b9\u9593\u306e\u8ddd\u96e2\u3092\u5f97\u308b\u306e\u306b\u4f7f\u3048\u308b\u3002<br \/>\n\u3064\u307e\u308a\uff0c<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">p1<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">]<\/span>\r\n<span class=\"n\">p2<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"o\">-<\/span><span class=\"mi\">4<\/span><span class=\"p\">]<\/span>\r\n\r\n<span class=\"n\">distance<\/span> <span class=\"o\">=<\/span> <span class=\"no\">Math<\/span><span class=\"p\">.<\/span><span class=\"nf\">hypot<\/span><span class=\"p\">(<\/span><span class=\"n\">p1<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]<\/span> <span class=\"o\">-<\/span> <span class=\"n\">p2<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">],<\/span> <span class=\"n\">p1<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span> <span class=\"o\">-<\/span> <span class=\"n\">p2<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">])<\/span>\r\n<\/code><\/pre>\n<p>\u3068\u3044\u3046\u3088\u3046\u306b\u3002<br \/>\n\u307e\u3042\uff0cVector \u3092\u4f7f\u3048\u3070<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">require<\/span> <span class=\"s2\">\"matrix\"<\/span>\r\n\r\n<span class=\"n\">p1<\/span> <span class=\"o\">=<\/span> <span class=\"no\">Vector<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">]<\/span>\r\n<span class=\"n\">p2<\/span> <span class=\"o\">=<\/span> <span class=\"no\">Vector<\/span><span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"o\">-<\/span><span class=\"mi\">4<\/span><span class=\"p\">]<\/span>\r\n\r\n<span class=\"n\">distance<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"n\">p1<\/span> <span class=\"o\">-<\/span> <span class=\"n\">p2<\/span><span class=\"p\">).<\/span><span class=\"nf\">norm<\/span>\r\n<\/code><\/pre>\n<p>\u3067\u3044\u3051\u308b\u3093\u3060\u3051\u3069\u3082\u306d\u3002<\/p>\n<p>\u8a71\u304c\u9038\u308c\u305f\u3002<\/p>\n<p>\u3067\u306f 3 \u6b21\u5143\u7a7a\u9593\u4e2d\u306e 2 \u70b9\u9593\u306e\u8ddd\u96e2\u306f\uff0c\u3068\u306a\u308b\u3068\uff0c\u5f53\u7136 hypot \u306e 3 \u6b21\u5143\u7248\u304c\u6b32\u3057\u304f\u306a\u308b\u308f\u3051\u3060\u3002<br \/>\n\u3044\u3084\u3082\u3061\u308d\u3093\uff0cVector \u3092\u4f7f\u3048\u3070\u4e0a\u8a18\u306e\u3088\u3046\u306b\u4f55\u6b21\u5143\u3060\u308d\u3046\u304c\u7c21\u5358\u306b\u66f8\u3051\u308b\u308f\u3051\u3060\u304c\uff0c\u901f\u5ea6\u305d\u306e\u4ed6\u306e\u7406\u7531\u3067 Vector \u3092\u4f7f\u3044\u305f\u304f\u306a\u3044\u5834\u5408\u3082\u3042\u308b\u3060\u308d\u3046\uff0c\u3068\u3002<\/p>\n<p>3 \u5909\u6570\u7248\u306f<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">def<\/span> <span class=\"nc\">Math<\/span><span class=\"o\">.<\/span><span class=\"nf\">hypot3<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span><span class=\"p\">,<\/span> <span class=\"n\">y<\/span><span class=\"p\">,<\/span> <span class=\"n\">z<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"no\">Math<\/span><span class=\"p\">.<\/span><span class=\"nf\">sqrt<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span> <span class=\"o\">*<\/span> <span class=\"n\">x<\/span> <span class=\"o\">+<\/span> <span class=\"n\">y<\/span> <span class=\"o\">*<\/span> <span class=\"n\">y<\/span> <span class=\"o\">+<\/span> <span class=\"n\">z<\/span> <span class=\"o\">*<\/span> <span class=\"n\">z<\/span><span class=\"p\">)<\/span>\r\n<span class=\"k\">end<\/span>\r\n<\/code><\/pre>\n<p>\u3068\uff0c\u7c21\u5358\u306b\u5b9a\u7fa9\u3067\u304d\u308b\u3002<br \/>\n\u3061\u306a\u307f\u306b x ** 2 \u3068\u305b\u305a\u306b x * x \u3068\u3057\u305f\u7406\u7531\u306f\uff0c\u524d\u8005\u304c\u305f\u3044\u3078\u3093\u9045\u3044\u304b\u3089\u3067\u3042\u308b1\u3002<\/p>\n<p>\u3057\u304b\u3057\uff0c\u4e0a\u8a18\u306e\u30e1\u30bd\u30c3\u30c9\u306f\uff0c\u4e57\u7b97 3 \u56de\uff0c\u52a0\u7b97 2 \u56de\uff0csqrt 1 \u56de\u3042\u308a\uff0c\u3053\u308c\u3089\u306f\u5168\u90e8\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u3060\u304b\u3089\uff0c\u8a08 6 \u56de\u3082\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3093\u3067\u3044\u308b\u3002<br \/>\n\u3053\u3046\u3044\u3046\u5f0f\u306f\uff0c\u3082\u3057\u304b\u3059\u308b\u3068 Rust \u3084 C \u3067\u66f8\u304d\u76f4\u3059\u3068\u901f\u304f\u306a\u308b\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n<h1>\u5b9f\u88c5\uff1aRust \u5074<\/h1>\n<p>Rust \u3092\u3088\u304f\u77e5\u3089\u306a\u3044\u4eba\u3067\u3082\u518d\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u66f8\u304f\u306d\u3002<br \/>\n\u305f\u3060\u3057\uff0cRust \u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u306f\u6e08\u3093\u3067\u3044\u308b\u3068\u3059\u308b\u3002<\/p>\n<h2>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4f5c\u6210<\/h2>\n<p>\u307e\u305a\u30bf\u30fc\u30df\u30ca\u30eb\u3067<\/p>\n<pre class=\"post-pre\"><code>cargo new my_ffi_math <span class=\"nt\">--lib<\/span>\r\n<\/code><\/pre>\n<p>\u3068\u3084\u3063\u3066\uff0cRust \u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4e00\u3064\u4f5c\u308b\u3002<br \/>\nmy_ffi_math \u306f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u540d\u3002<br \/>\n\u30aa\u30d7\u30b7\u30e7\u30f3\u306e &#8211;lib \u306f\uff0c\u300c\u30e9\u30a4\u30d6\u30e9\u30ea\u30fc\u30af\u30ec\u30fc\u30c8\u3092\u4f5c\u308b\u300d\u3068\u3044\u3046\u6307\u5b9a\u3002<br \/>\n\u30af\u30ec\u30fc\u30c8\u3068\u3044\u3046\u306e\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u5358\u4f4d\u306a\u306e\u3060\u304c\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d0\u30a4\u30ca\u30ea\u30fc\u30af\u30ec\u30fc\u30c8\uff1a\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30e9\u30a4\u30d6\u30e9\u30ea\u30fc\u30af\u30ec\u30fc\u30c8\uff1a\u30e9\u30a4\u30d6\u30e9\u30ea\u30fc\u3092\u4f5c\u308b<\/ul>\n<p>\u3068\u3044\u3046\u4e8c\u7a2e\u985e\u304c\u3042\u308b\u3002<\/p>\n<h2>Cargo.toml \u306e\u7de8\u96c6<\/h2>\n<p>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30eb\u30fc\u30c8\u306b Cargo.toml \u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308b\u3002\u3053\u3053\u306b\uff0c\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5168\u4f53\u306b\u95a2\u308f\u308b\u3044\u308d\u3044\u308d\u306a\u8a2d\u5b9a\u306a\u3069\u304c\u66f8\u304b\u308c\u308b\u3002<br \/>\n\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u672b\u5c3e\u306b<\/p>\n<pre class=\"post-pre\"><code><span class=\"nn\">[lib]<\/span>\r\n<span class=\"py\">crate-type<\/span> <span class=\"p\">=<\/span> <span class=\"nn\">[\"cdylib\"]<\/span>\r\n<\/code><\/pre>\n<p>\u3068\u8ffd\u8a18\u3059\u308b\u3002<br \/>\n\u3053\u308c\u306e\u610f\u5473\u306f\u7b46\u8005\u306b\u306f\u3088\u304f\u5206\u304b\u3063\u3066\u306a\u3044\u3002<\/p>\n<h2>\u95a2\u6570\u306e\u4f5c\u6210<\/h2>\n<p>src\/lib.rs \u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308b\u306f\u305a\u3060\u3002<br \/>\n\u3053\u3053\u306b\u306f\uff0c\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u96db\u5f62\u304c\u66f8\u304b\u308c\u3066\u3044\u308b\u304c2\uff0c\u3053\u308c\u306f\u524a\u9664\u3057\u3066\u3057\u307e\u3063\u3066\u69cb\u308f\u306a\u3044\u3002<\/p>\n<p>\u305d\u3057\u3066\uff0c<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">#[no_mangle]<\/span>\r\n<span class=\"k\">pub<\/span> <span class=\"k\">extern<\/span> <span class=\"k\">fn<\/span> <span class=\"nf\">hypot3<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span><span class=\"p\">:<\/span> <span class=\"nb\">f64<\/span><span class=\"p\">,<\/span> <span class=\"n\">y<\/span><span class=\"p\">:<\/span> <span class=\"nb\">f64<\/span><span class=\"p\">,<\/span> <span class=\"n\">z<\/span><span class=\"p\">:<\/span> <span class=\"nb\">f64<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">f64<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"p\">(<\/span><span class=\"n\">x<\/span> <span class=\"o\">*<\/span> <span class=\"n\">x<\/span> <span class=\"o\">+<\/span> <span class=\"n\">y<\/span> <span class=\"o\">*<\/span> <span class=\"n\">y<\/span> <span class=\"o\">+<\/span> <span class=\"n\">z<\/span> <span class=\"o\">*<\/span> <span class=\"n\">z<\/span><span class=\"p\">)<\/span><span class=\"nf\">.sqrt<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3068\u66f8\u304f\u3002<\/p>\n<p>fn \u304c\u95a2\u6570\u306e\u5b9a\u7fa9\u3092\u8868\u3059\u30ad\u30fc\u30ef\u30fc\u30c9\u3002pub \u3068 extern \u306f\u305d\u308c\u306b\u5bfe\u3059\u308b\u30aa\u30de\u30b1\u3067\uff0c\u3048\u3048\u3068\uff0c\u3061\u3083\u3093\u3068\u8aac\u660e\u3067\u304d\u306a\u3044\u3063\u3059\u3002pub \u306f\u300c\u3053\u306e\u95a2\u6570\u3092\u5916\u90e8\u306b\u516c\u958b\u3059\u308b\u305c\u300d\u3068\u3044\u3046\u3088\u3046\u306a\u3053\u3068\u306a\u3093\u3060\u308d\u3046\u3051\u3069\u3002<\/p>\n<p>f64 \u306f 64 bit \u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3068\u3044\u3046\u578b\u3092\u8868\u3057\u3066\u3044\u3066\uff0c\u3053\u308c\u304c FFI \u3092\u901a\u3057\u3066 Ruby \u306e Float \u306b\u5bfe\u5fdc\u3059\u308b\u3002<br \/>\n-&gt; \u306f\u95a2\u6570\u306e\u8fd4\u308a\u5024\u306e\u578b\u3092\u8868\u3057\u3066\u3044\u308b\u3002<br \/>\n\u95a2\u6570\u306e\u4e2d\u8eab\u306f\uff0c\u898b\u308c\u3070\u307e\u3042\u306a\u3093\u3068\u306a\u304f\u5206\u304b\u308b\u3002<br \/>\n\u95a2\u6570\u5b9a\u7fa9\u306e\u524d\u306b\u4ed8\u3044\u3066\u3044\u308b<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">#[no_mangle]<\/span>\r\n<\/code><\/pre>\n<p>\u304c\u6c17\u306b\u306a\u308b\u306d\u3002<br \/>\n\u7b46\u8005\u306b\u3082\u3088\u304f\u5206\u304b\u3063\u3066\u306a\u3044\u3051\u3069\uff0c\u3053\u308c\u3092\u66f8\u3044\u3066\u304a\u304b\u306a\u3044\u3068\uff0c\u305b\u3063\u304b\u304f hypot3 \u3068\u3044\u3046\u540d\u524d\u3067\u95a2\u6570\u3092\u5b9a\u7fa9\u3057\u305f\u306e\u306b\uff0c\u30b3\u30f3\u30d1\u30a4\u30eb\u5f8c\u306b\u305d\u306e\u540d\u524d\u3067\u306f\u53c2\u7167\u3067\u304d\u306a\u304f\u306a\u308b\uff0c\u3068\u3044\u3046\u3053\u3068\u3089\u3057\u3044\u3002<\/p>\n<p>Rust \u5074\u306e\u5b9f\u88c5\u306f\u4ee5\u4e0a\u3067\u30aa\u30b7\u30de\u30a4\u3002<\/p>\n<h2>\u30b3\u30f3\u30d1\u30a4\u30eb<\/h2>\n<p>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30eb\u30fc\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30fc\u3067<\/p>\n<pre class=\"post-pre\"><code>cargo build <span class=\"nt\">--release<\/span>\r\n<\/code><\/pre>\n<p>\u3068\u3084\u308b\u3068\uff0c\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u308b\u3002<br \/>\nbuild\u30d3\u30eb\u30c9 \u3068\u3044\u3046\u306e\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u30ab\u30c3\u30b3\u3088\u304f\u8a00\u3063\u305f\u3082\u306e\uff08\uff1f\u3000\u3044\u3084\uff0c\u305f\u3076\u3093\u9055\u3046\uff09<br \/>\n\u30d3\u30eb\u30c9\u306f\uff0c\u30c7\u30d0\u30c3\u30b0\u7528\u3068\u30ea\u30ea\u30fc\u30b9\uff08\u672c\u756a\uff09\u7528\u306e\u4e8c\u901a\u308a\u53ef\u80fd\u3067\uff0c&#8211;release \u306f\u6587\u5b57\u901a\u308a\u30ea\u30ea\u30fc\u30b9\u7528\u306b\u30d3\u30eb\u30c9\u3057\u308d\uff0c\u3068\u3044\u3046\u3053\u3068\u3002<br \/>\n\u30c7\u30d0\u30c3\u30b0\u7528\u3060\u3068\u5b9f\u884c\u901f\u5ea6\u304c\u9045\u3044\u3002<\/p>\n<p>\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3066\u51fa\u6765\u305f\u3082\u306e\u306f target\/release\/libmy_ffi_math.dylib \u3068\u3044\u3046\u30d1\u30b9\u306b\u3042\u308b\u306f\u305a\u3060\u3002<br \/>\n\u3042\uff0c\u3044\u3084\uff0c\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u62e1\u5f35\u5b50\u306f\u30a4\u30ed\u30a4\u30ed\u306a\u3093\u3060\u3088\u306a\u3002macOS \u4e0a\u3067\u3084\u308b\u3068 .dylib \u306b\u306a\u3063\u305f\u3051\u3069\uff0cWindows \u3068\u304b\u3067\u306f\u9055\u3046\u306f\u305a3\u3002<\/p>\n<p>Ruby \u5074\u3067\u5fc5\u8981\u306b\u306a\u308b\u306e\u306f\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u3060\u3051\u3002<\/p>\n<p>\u30d5\u30a1\u30a4\u30eb\u540d\u306e\u30d9\u30fc\u30b9\u540d\uff08\u62e1\u5f35\u5b50\u3092\u9664\u3044\u305f\u90e8\u5206\uff09\u306f\uff0c\u4eca\u306e\u5834\u5408\uff0c\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u540d\u306e\u982d\u306b lib \u3092\u4ed8\u3051\u305f\u3082\u306e\u306b\u306a\u3063\u3066\u3044\u308b\u3002<br \/>\n\u3082\u3057\uff0cCargo.toml \u306e [lib] \u306e\u3068\u3053\u308d\u306b name \u3092\u8ffd\u8a18\u3057\u3066<\/p>\n<pre class=\"post-pre\"><code><span class=\"nn\">[lib]<\/span>\r\n<span class=\"py\">name<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"hoge\"<\/span>\r\n<span class=\"py\">crate-type<\/span> <span class=\"p\">=<\/span> <span class=\"nn\">[\"cdylib\"]<\/span>\r\n<\/code><\/pre>\n<p>\u306e\u3088\u3046\u306b\u3059\u308c\u3070\uff0c\u30d5\u30a1\u30a4\u30eb\u540d\u306f libhoge.dylib \u306e\u3088\u3046\u306b\u306a\u308b\u306f\u305a\u3002<\/p>\n<h1>\u5b9f\u88c5\uff1aRuby \u5074<\/h1>\n<p>Ruby \u5074\u3067\u306f ffi \u3068\u3044\u3046 gem \u3092\u4f7f\u3046\uff08fiddle \u3092\u4f7f\u3046\u65b9\u6cd5\u3082\u3042\u308b\uff09\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3067\u306f\u7c21\u5358\u306b<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">require<\/span> <span class=\"s2\">\"ffi\"<\/span>\r\n<\/code><\/pre>\n<p>\u3068\u3084\u308b\u304c\uff0c\u3082\u3061\u308d\u3093 Gemfile \u3067\u7ba1\u7406\u3059\u308b\u306a\u3089<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">gem<\/span> <span class=\"s2\">\"ffi\"<\/span><span class=\"p\">,<\/span> <span class=\"s2\">\"~&gt; 1.13\"<\/span>\r\n<\/code><\/pre>\n<p>\u3068\u3067\u3082\u66f8\u3044\u3066\u304a\u3044\u3066\uff0c\u30b9\u30af\u30ea\u30d7\u30c8\u3067<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">require<\/span> <span class=\"s2\">\"bundler\"<\/span>\r\n<span class=\"no\">Bundler<\/span><span class=\"p\">.<\/span><span class=\"nf\">require<\/span>\r\n<\/code><\/pre>\n<p>\u306a\u3069\u3068\u3059\u308c\u3070\u3088\u3044\u3002<\/p>\n<p>\u307e\u305f\uff0cRuby \u306e\u30b3\u30fc\u30c9\u306f\u3068\u308a\u3042\u3048\u305a Rust \u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30eb\u30fc\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30fc\u306b\u3042\u308b\u3068\u3059\u308b\u3002<\/p>\n<p>\u3053\u3093\u306a\u3075\u3046\u306b\u66f8\u304f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">require<\/span> <span class=\"s2\">\"ffi\"<\/span>\r\n\r\n<span class=\"k\">module<\/span> <span class=\"nn\">FFIMath<\/span>\r\n  <span class=\"kp\">extend<\/span> <span class=\"no\">FFI<\/span><span class=\"o\">::<\/span><span class=\"no\">Library<\/span>\r\n  <span class=\"n\">ffi_lib<\/span> <span class=\"s2\">\"target\/release\/libmy_ffi_math.dylib\"<\/span>\r\n  <span class=\"n\">attach_function<\/span> <span class=\"ss\">:hypot3<\/span><span class=\"p\">,<\/span> <span class=\"p\">[<\/span><span class=\"ss\">:double<\/span><span class=\"p\">,<\/span> <span class=\"ss\">:double<\/span><span class=\"p\">,<\/span> <span class=\"ss\">:double<\/span><span class=\"p\">],<\/span> <span class=\"ss\">:double<\/span>\r\n<span class=\"k\">end<\/span>\r\n\r\n<span class=\"nb\">p<\/span> <span class=\"no\">FFIMath<\/span><span class=\"p\">.<\/span><span class=\"nf\">hypot3<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">)<\/span>\r\n<span class=\"c1\"># =&gt; 3.7416573867739413<\/span>\r\n\r\n<span class=\"c1\"># \u53c2\u8003<\/span>\r\n<span class=\"nb\">p<\/span> <span class=\"no\">Math<\/span><span class=\"p\">.<\/span><span class=\"nf\">sqrt<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">1<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">2<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">2<\/span> <span class=\"o\">+<\/span> <span class=\"mi\">3<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">3<\/span><span class=\"p\">)<\/span>\r\n<span class=\"c1\"># =&gt; 3.7416573867739413<\/span>\r\n<\/code><\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\u3082\u30b3\u30e1\u30f3\u30c8\u3067\u66f8\u3044\u3061\u3083\u3063\u3066\u3044\u308b\u304c\uff0cRuby \u3067\u8a08\u7b97\u3057\u305f\u306e\u3068\u7d50\u679c\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308b\u3002<\/p>\n<p>FFIMath \u3068\u3057\u305f\u306e\u306f\u4f55\u3067\u3082\u3044\u3044\u304b\u3089\u4f55\u304b\u30c6\u30ad\u30c8\u30fc\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u4e00\u3064\u7528\u610f\u3057\u305f\u3060\u3051\u3002<br \/>\n\u3053\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u5bfe\u3057\uff0cFFI::Library \u3092 extend \u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\uff0cffi_lib \u306a\u3069\u3044\u304f\u3064\u304b\u306e\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u304c\u751f\u3048\u308b\u3002<\/p>\n<p>ffi_lib \u30e1\u30bd\u30c3\u30c9\u306f\uff0c\u30b3\u30f3\u30d1\u30a4\u30eb\u3067\u51fa\u6765\u305f\u30e9\u30a4\u30d6\u30e9\u30ea\u30fc\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u3002<br \/>\n\u3048\u3063\u3068\uff0c\u306a\u3093\u304b\u3088\u304f\u5206\u304b\u3089\u306a\u3044\u3051\u3069\uff0c\u76f8\u5bfe\u30d1\u30b9\u3060\u3068\u3046\u307e\u304f\u3044\u304b\u306a\u3044\u3053\u3068\u304c\u3042\u308b\u3088\u3046\u3067\uff0c\u7d76\u5bfe\u30d1\u30b9\u3092\u4e0e\u3048\u305f\u307b\u3046\u304c\u3088\u3055\u305d\u3046\u3002\u305d\u306e\u305f\u3081\u306b\u306f File.expand_path \u3092\u4f7f\u3063\u3066<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"n\">ffi_lib<\/span> <span class=\"no\">File<\/span><span class=\"p\">.<\/span><span class=\"nf\">expand_path<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"target\/release\/libmy_ffi_math.dylib\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">__dir__<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u3068\u3059\u308b\u3002\u3053\u3046\u66f8\u304f\u3068\uff0c\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u4f4d\u7f6e\uff08__dir__\uff09\u304b\u3089\u306e\u76f8\u5bfe\u30d1\u30b9\u3092\u7d76\u5bfe\u30d1\u30b9\u306b\u3057\u3066\u304f\u308c\u308b\u3002<\/p>\n<p>attach_function \u306f\uff0cRust \u3067\u4f5c\u3063\u305f\u95a2\u6570\u3092\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u751f\u3084\u3059\u3002<br \/>\n\u7b2c\u4e00\u5f15\u6570\u304c\u95a2\u6570\u540d\u3002<br \/>\n\u7b2c\u4e8c\u5f15\u6570\u306f\uff0c\u95a2\u6570\u306e\u5f15\u6570\u306e\u578b\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u30023 \u5f15\u6570\u306a\u306e\u3067\uff0c\u9577\u3055 3 \u306e\u914d\u5217\u306b\u306a\u3063\u3066\u3044\u308b\u3002:double \u306f FFI \u306e\u500d\u7cbe\u5ea6\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3092\u8868\u3057\u3066\u3044\u308b\u3002Rust \u3067\u306f f64 \u306b\u3042\u305f\u308a\uff0cRuby \u3067\u306f Float \u306b\u3042\u305f\u308b\u3002<br \/>\n\u7b2c\u4e09\u5f15\u6570\u306f\u95a2\u6570\u306e\u8fd4\u308a\u5024\u306e\u578b\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u3002<br \/>\n\u4ee5\u4e0a\u3067\uff0c\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u304c\u5b9a\u7fa9\u3067\u304d\u305f\u3002<\/p>\n<p>\u4f7f\u3044\u65b9\u306f\u898b\u3066\u306e\u3068\u304a\u308a\u3002<br \/>\n\u5bdf\u3057\u306e\u826f\u3044\u65b9\u306f\uff0c\u300c\u3093\uff1f\u3000\u5f15\u6570\u306b\u306f Float \u3092\u4e0e\u3048\u306a\u304f\u3061\u3083\u3044\u3051\u306a\u3044\u306e\u306b Integer \u3092\u4e0e\u3048\u3066\u308b\u305e\uff1f\u300d\u3068\u7591\u554f\u306b\u601d\u308f\u308c\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002<br \/>\n\u3053\u308c\u306b\u3064\u3044\u3066\u306f\u7b46\u8005\u3082\u3088\u304f\u77e5\u3089\u306a\u3044\u3051\u308c\u3069\uff0c\u304d\u3063\u3068 ffi gem \u304c\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306b\u5909\u63db\u3057\u3066\u304f\u308c\u3066\u3044\u308b\u306e\u3060\u308d\u3046\u3002<\/p>\n<p>\u610f\u5916\u306b\u7c21\u5358\u3060\u3063\u305f\uff01<\/p>\n<h1>\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30c6\u30b9\u30c8<\/h1>\n<p>hypot3 \u3092 Rust \u3067\u5b9f\u88c5\u3057\u3088\u3046\u3068\u3057\u305f\u306e\u306f\u305d\u306e\u30b9\u30d4\u30fc\u30c9\u3092\u671f\u5f85\u3057\u3066\u306e\u3053\u3068\u3067\u3042\u3063\u305f\u3002<br \/>\n\u306a\u3089\u3070\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30c6\u30b9\u30c8\u3067\u5b9f\u8a3c\u305b\u306d\u3070\u306a\u308b\u307e\u3044\u3002\u3055\u3066\uff0c\u3069\u306e\u7a0b\u5ea6\u901f\u304f\u306a\u308b\u306e\u3060\u308d\u3046\uff01<\/p>\n<h2>\u30c6\u30b9\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u30fc<\/h2>\n<p>hypot3 \u306e\u3088\u3046\u306a\u8efd\u3044\u51e6\u7406\u3092\u8a08\u6e2c\u3059\u308b\u5834\u5408\uff0c\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30c6\u30b9\u30c8\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u30fc\u306f benchmark_driver \u4e00\u629e\u306b\u306a\u308b\u3068\u601d\u3046\u3002<\/p>\n<p>\u8efd\u3044\u51e6\u7406\u3092\u8a08\u6e2c\u3059\u308b\u306b\u306f\uff0c\u540c\u3058\u51e6\u7406\u3092\u4f55\u56de\u3082\u5b9f\u884c\u3057\u305f\u6642\u9593\u3092\u8a08\u6e2c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304c\uff0ctimes \u30e1\u30bd\u30c3\u30c9\u306a\u3093\u304b\u3067\u30eb\u30fc\u30d7\u3092\u56de\u3059\u3068\uff0c\u30eb\u30fc\u30d7\u306e\u30b3\u30b9\u30c8\u304c\u76f8\u5bfe\u7684\u306b\u7121\u8996\u3067\u304d\u306a\u3044\u305f\u3081\u6b63\u78ba\u306b\u6e2c\u308c\u306a\u3044\u3002benchmark_driver \u306f\u305d\u3046\u3044\u3046\u30b3\u30b9\u30c8\u3092\u304b\u3051\u305a\u306b\u591a\u6570\u56de\u5b9f\u884c\u3055\u305b\u308b\u306e\u3067\uff0c\u308f\u308a\u3068\u5b9f\u969b\u306e\u5b9f\u884c\u901f\u5ea6\u304c\u6e2c\u308c\u308b\uff0c\u3068\u3044\u3046\u3053\u3068\u3089\u3057\u3044\uff08\u3069\u3046\u3044\u3046\u4ed5\u7d44\u307f\u304b\u77e5\u3089\u306a\u3044\u3051\u3069\uff09\u3002<\/p>\n<h2>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9<\/h2>\n<p>benchmark_driver \u306e\u4f7f\u3044\u65b9\u306f\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u30c6\u30b9\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0\u3092 Ruby \u3067\u66f8\u3044\u3066\u5b9f\u884c\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u306e\u5185\u5bb9\u3092 YAML \u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u3044\u3066 benchmark_driver \u30b3\u30de\u30f3\u30c9\u306b\u4e0e\u3048\u308b<\/ul>\n<p>\u306e\u4e8c\u901a\u308a\u3042\u308b\u304c\uff0c\u4eca\u56de\u306f\u5f8c\u8005\u3067\u3084\u3063\u3066\u307f\u308b\u3002<br \/>\n\u5f8c\u8005\u306f YAML \u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u899a\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u304c\uff0c\u305d\u3046\u96e3\u3057\u304f\u306f\u306a\u3044\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">prelude<\/span><span class=\"pi\">:<\/span> <span class=\"pi\">|<\/span>\r\n  <span class=\"s\">require \"ffi\"<\/span>\r\n\r\n  <span class=\"s\">def Math.hypot3(x, y, z)<\/span>\r\n    <span class=\"s\">Math.sqrt(x * x + y * y + z * z)<\/span>\r\n  <span class=\"s\">end<\/span>\r\n\r\n  <span class=\"s\">module FFIMath<\/span>\r\n    <span class=\"s\">extend FFI::Library<\/span>\r\n    <span class=\"s\">ffi_lib \"target\/release\/libmy_ffi_math.dylib\"<\/span>\r\n    <span class=\"s\">attach_function :hypot3, [:double, :double, :double], :double<\/span>\r\n  <span class=\"s\">end<\/span>\r\n\r\n  <span class=\"s\">x, y, z = 3, 2, 7<\/span>\r\n\r\n<span class=\"na\">benchmark<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s\">Math.hypot3(x, y, z)<\/span>\r\n  <span class=\"pi\">-<\/span> <span class=\"s\">FFIMath.hypot3(x, y, z)<\/span>\r\n<\/code><\/pre>\n<p>prelude \u306e\u4e2d\u8eab\u306f\uff0c\u8a08\u6e2c\u306b\u5148\u7acb\u3063\u3066\u4f55\u304b\u3057\u3066\u304a\u304f\u3079\u304d\u3053\u3068\u3092\u66f8\u304f\u3002<br \/>\n\u6bd4\u8f03\u7528\u306b Math.hypot3 \u3092\u5b9a\u7fa9\u3057\u3066\u304a\u3044\u305f\u3002<\/p>\n<h2>\u30c6\u30b9\u30c8\u5b9f\u884c<\/h2>\n<p>\u3053\u3053\u307e\u3067\u3067\u304d\u305f\u3089\uff0c\u30bf\u30fc\u30df\u30ca\u30eb\u3067<\/p>\n<pre class=\"post-pre\"><code>benchmark-driver benchmark.yaml\r\n<\/code><\/pre>\n<p>\u3068\u3059\u308b\u3002\uff08gem \u540d\u304c\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u306a\u306e\u306b\u30b3\u30de\u30f3\u30c9\u540d\u304c\u30cf\u30a4\u30d5\u30f3\u306a\u306e\u304c\u3084\u3084\u3053\u3057\u3044\uff09<br \/>\n\u3042\uff0cbenchmark_driver gem \u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/p>\n<pre class=\"post-pre\"><code>gem i benchmark_driver\r\n<\/code><\/pre>\n<p>\u3092\u3042\u3089\u304b\u3058\u3081\u3084\u3063\u3066\u304a\u3053\u3046\u306d\u3002<\/p>\n<p>\u7d50\u679c\u306f\u30fb\u30fb\u30fb<\/p>\n<pre class=\"post-pre\"><code>Comparison:\r\n   Math.hypot3<span class=\"o\">(<\/span>x, y, z<span class=\"o\">)<\/span>:  10211285.3 i\/s\r\nFFIMath.hypot3<span class=\"o\">(<\/span>x, y, z<span class=\"o\">)<\/span>:   5153872.8 i\/s - 1.98x  slower\r\n<\/code><\/pre>\n<p>\u3048\u3063\uff1f<\/p>\n<p>Math.hypot3 \u304c\u6bce\u79d2 1000 \u4e07\u56de\u5b9f\u884c\u3067\u304d\u3066\u3044\u308b\u306e\u306b\u5bfe\u3057\uff0cFFIMath.hypot3 \u306f\u6bce\u79d2 500 \u4e07\u56de\u3002<br \/>\n\u3056\uff0c\u60e8\u6557\u3067\u306f\u306a\u3044\u304b\u30fb\u30fb\u3002<br \/>\n\u901f\u304f\u306a\u308b\u3069\u3053\u308d\u304b\uff0c\u8a71\u306b\u306a\u3089\u306a\u3044\u304f\u3089\u3044\u9045\u30444\u3002<\/p>\n<p>\u6557\u56e0\u306f\u4f55\u3060\u308d\u3046\u3002Rust \u306e\u30b3\u30fc\u30c9\u306f\u3053\u308c\u4ee5\u4e0a\u6539\u5584\u3057\u3088\u3046\u304c\u306a\u3044\u3088\u3046\u306b\u601d\u3048\u308b\u3002\u30b3\u30f3\u30d1\u30a4\u30eb\u306f\u3061\u3083\u3093\u3068\u30ea\u30ea\u30fc\u30b9\u30d3\u30eb\u30c9\u3092\u6307\u5b9a\u3057\u305f\u3002<br \/>\nRust \u306e\u5404\u7a2e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u898b\u308b\u3068 C \u3068\u905c\u8272\u306a\u3044\u3088\u3046\u306a\u306e\u3067\uff0cRust \u304c\u9045\u3044\uff0c\u3068\u3044\u3046\u308f\u3051\u3067\u3082\u306a\u3055\u305d\u3046\u3060\u3002<\/p>\n<p>\u3068\u306a\u308b\u3068\uff0c\u3084\u306f\u308a FFI \u306e\u30b3\u30b9\u30c8\u3067\u306f\u306a\u3044\u3060\u308d\u3046\u304b\u3002<br \/>\nRuby \u306f\u5f15\u6570\u306b\u4f55\u3067\u3082\u6e21\u305b\u3066\u3057\u307e\u3046\u306e\u3067\uff0c\u5b9f\u884c\u6642\u306b ffi gem \u304c\u578b\u306e\u30c1\u30a7\u30c3\u30af\u3084\u5909\u63db\u3092\u3057\u3066\u304f\u308c\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3046\u3002\u305d\u3046\u3044\u3046\u4f59\u8a08\u306a\uff08\uff1f\uff09\u51e6\u7406\u304c\u91cd\u8377\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n<p>hypot3 \u7a0b\u5ea6\u306e\u51e6\u7406\u306f\uff0cRust \u3067\u5b9f\u88c5\u3059\u308b\u610f\u5473\u304c\u7121\u3044\u3089\u3057\u3044\u3068\u5206\u304b\u3063\u305f\u3002<br \/>\n\u3082\u3063\u3068\u91cd\u3044\u51e6\u7406\u3092\u3084\u3089\u305b\u306a\u304f\u3061\u3083\u3044\u3051\u306a\u3044\u306e\u3060\u3002<\/p>\n<p>\u6c17\u3092\u53d6\u308a\u76f4\u3057\u3066\u300c\u3082\u3063\u3068\u91cd\u3044\u51e6\u7406\u300d\u3092\u4f55\u304b\u8003\u3048\u308b\u3053\u3068\u306b\u3057\u3088\u3046\u3002<\/p>\n<div>\n<p>\u6700\u8fd1\uff0c2 \u4e57\u306e\u6700\u9069\u5316\u304c\u5165\u3063\u305f\u306e\u3067\uff0c\u305f\u3076\u3093 Ruby 3.0 \u3042\u305f\u308a\u3067 x ** 2 \u306f\u305d\u308c\u307b\u3069\u9045\u304f\u306a\u3044\u3053\u3068\u306b\u306a\u308a\u305d\u3046\u3002\u00a0\u21a9<\/p>\n<p>Rust \u3067\u306f\u30b3\u30fc\u30c9\u4e2d\u306b\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u304c\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304a\u308a\uff0c\u30c6\u30b9\u30c8\u306e\u5b9f\u884c\u3082 cargo test \u3068\u3084\u308b\u3060\u3051\uff0c\u3068\u975e\u5e38\u306b\u7c21\u5358\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u00a0\u21a9<\/p>\n<p>\u6b63\u78ba\u306b\u8a00\u3048\u3070\uff0c\u751f\u6210\u7269\u306e\u62e1\u5f35\u5b50\u306f\uff0c\u3069\u306e OS \u4e0a\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u304b\u306b\u4f9d\u308b\uff0c\u306e\u3067\u306f\u306a\u304f\uff0c\u3069\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u7528\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u304b\u306b\u4f9d\u308b\uff0c\u3068\u3044\u3046\u3053\u3068\u306a\u3093\u3058\u3083\u306a\u3044\u304b\u3068\u601d\u3046\u3002\u3064\u307e\u308a\uff0cWindows \u4e0a\u3067 macOS \u7528\uff08x86_64-apple-darwin\uff09\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308c\u3070 .dylib \u306b\u306a\u308b\u3093\u3058\u3083\u306a\u3044\u304b\u306a\u3002Rust \u306f\u7c21\u5358\u306b\u30af\u30ed\u30b9\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u3067\u304d\u308b\u3082\u306e\u306d\u3002\u00a0\u21a9<\/p>\n<p>\u3061\u306a\u307f\u306b\uff0c\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f x, y, z \u306b Integer \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4e0e\u3048\u3066\u3044\u308b\u304c\uff0cFloat \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4e0e\u3048\u305f\u5834\u5408\uff0cMath.hypot3 \u306f 1 \u5272\u4ee5\u4e0a\u901f\u5ea6\u304c\u843d\u3061\uff0cFFIMath.hypot3 \u306e\u307b\u3046\u306f\u5909\u308f\u3089\u305a\uff0c\u3067\u3042\u3063\u305f\u3002\u00a0\u21a9<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u9023\u8a18\u4e8b\u76ee\u6b21 Ruby\/Rust \u9023\u643a (1)\u3000\u76ee\u7684 &nbsp; Ruby\/Rust \u9023\u643a (2)\u3000\u624b\u6bb5 &#038;n [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45533","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/45533-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u9023\u8a18\u4e8b\u76ee\u6b21 Ruby\/Rust \u9023\u643a (1)\u3000\u76ee\u7684 &nbsp; Ruby\/Rust \u9023\u643a 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