{"id":45100,"date":"2023-01-04T19:08:25","date_gmt":"2023-06-20T06:42:12","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45100-2\/"},"modified":"2024-04-29T08:32:27","modified_gmt":"2024-04-29T00:32:27","slug":"45100-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45100-2\/","title":{"rendered":""},"content":{"rendered":"<p>Rust\u3067FFI\u95a2\u9023\u306e\u7df4\u7fd2\u3092\u3057\u305f\u3002<br \/>\n\u3059\u3079\u3066Windows MSVC\u74b0\u5883\u3002<\/p>\n<p>FFI = Foreign Function Interface\uff08\u4ed6\u8a00\u8a9e\u306e\u95a2\u6570\u3092\u4f7f\u3046\u305f\u3081\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff09\u3002<br \/>\n\u7570\u306a\u308b\u8a00\u8a9e\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046\u305f\u3081\u306e\u6280\u8853\u7684\u4ed5\u69d8\u3002<br \/>\n\u7c21\u5358\u306b\u8a00\u3048\u3070\u300cC\u8a00\u8a9e\u306e\u4ed5\u69d8\u306b\u5408\u308f\u305b\u308b\u300d\u3053\u3068\u3067\u5b9f\u73fe\u3057\u3066\u3044\u308b\u3002<\/p>\n<p>\u203b7\/26\u8ffd\u8a18<br \/>\n\u30b3\u30e1\u30f3\u30c8\u3067\u306e\u6307\u6458\u3092\u53d7\u3051\u3066\u3001\u8aa4\u3063\u3066\u3044\u305f\u7b87\u6240\u3092\u8a02\u6b63\u3002<br \/>\n\u203b8\/5\u8ffd\u8a18<br \/>\nPython\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u4e0d\u5177\u5408\u3092\u4fee\u6b63\u3002<\/p>\n<p>\u8981\u70b9<br \/>\nRust\u88fd\u30e9\u30a4\u30d6\u30e9\u30ea\u3092C\u8a00\u8a9e\u3067\u4f7f\u3046<br \/>\nRust\u88fd\u30e9\u30a4\u30d6\u30e9\u30ea\u3092Python\u3067\u4f7f\u3046<br \/>\nC\u8a00\u8a9e\u88fd\u30e9\u30a4\u30d6\u30e9\u30ea\u3092Rust\u3067\u4f7f\u3046<br \/>\n\u88dc\u8db3<br \/>\n\u53c2\u8003<\/p>\n<h1>\u8981\u70b9<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">C\u8a00\u8a9e\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u306b\u306f\u300cx64 Native Tools Command Prompt\u300d\u3092\u4f7f\u3046\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>Rust\uff5eC\u8a00\u8a9e\u9593\u3067\u306f\u9759\u7684\u30ea\u30f3\u30af\uff08.lib\uff09\u3067\u9023\u643a\u3055\u305b\u308b\u3002 \u203b7\/26\u8a02\u6b63<br \/>\nRust\uff5ePython\u9593\u3067\u306f\u52d5\u7684\u30ea\u30f3\u30af\uff08.dll\uff09\u3067\u9023\u643a\u3055\u305b\u308b\u3002<br \/>\n\u30ea\u30f3\u30af\u65b9\u6cd5\u306f\u5927\u5225\u3057\u3066\u300c\u52d5\u7684\uff08Dynamic\uff09\u30ea\u30f3\u30af\u300d\u300c\u9759\u7684\uff08Static\uff09\u30ea\u30f3\u30af\u300d\u304c\u3042\u308b\u3002<br \/>\n\u672c\u8a18\u4e8b\u3067\u306f\u8a00\u8a9e\u3054\u3068\u306b\u7570\u306a\u308b\u30ea\u30f3\u30af\u65b9\u6cd5\u3092\u7528\u3044\u3066\u3044\u308b\u3002<\/p>\n<p>C, Python\uff5eRust\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u52d5\u7684\u30ea\u30f3\u30af\u3002<br \/>\nRust\uff5eC\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u9759\u7684\u30ea\u30f3\u30af\u3002<\/p>\n<h1>Rust\u88fd\u30e9\u30a4\u30d6\u30e9\u30ea\u3092C\u8a00\u8a9e\u3067\u4f7f\u3046<\/h1>\n<p>\u307e\u305a\u306fRust\u3067\u7c21\u5358\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f5c\u3063\u3066\u307f\u308b\u3002<\/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=\"s\">\"C\"<\/span> <span class=\"k\">fn<\/span> <span class=\"nf\">rs_add<\/span><span class=\"p\">(<\/span><span class=\"n\">a<\/span><span class=\"p\">:<\/span> <span class=\"nb\">isize<\/span><span class=\"p\">,<\/span> <span class=\"n\">b<\/span><span class=\"p\">:<\/span> <span class=\"nb\">isize<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">isize<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">a<\/span> <span class=\"o\">+<\/span> <span class=\"n\">b<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u308c\u3092\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u3057\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code>&gt; rustc --crate-type=\"dylib\" rs_add.rs\r\n<\/code><\/pre>\n<p>\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u3068\u4e0b\u8a184\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u51fa\u529b\u3055\u308c\u308b\u3002<\/p>\n<p>rs_add.dll \u2190\u52d5\u7684\uff08Dynamic\uff09\u30ea\u30f3\u30af\u30e9\u30a4\u30d6\u30e9\u30ea\u3002<\/p>\n<p>rs_add.dll.exp \u2190.dll\u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u4e00\u6642\u30d5\u30a1\u30a4\u30eb\u3002\u4e0d\u4f7f\u7528\u3002<\/p>\n<p>rs_add.dll.lib \u2190\u9759\u7684\uff08Static\uff09\u30ea\u30f3\u30af\u30e9\u30a4\u30d6\u30e9\u30ea\u3002 C\u8a00\u8a9e\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u5fc5\u8981\u3002 \u203b7\/26\u8a02\u6b63<\/p>\n<p>rs_add.pdb \u2190Program Data Base\u30d5\u30a1\u30a4\u30eb\u3002\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u7b49\u3002\u4e0d\u4f7f\u7528\u3002<\/p>\n<p>\u305d\u3057\u3066C\u8a00\u8a9e\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u672c\u4f53\u3092\u4f5c\u308b\u3002<br \/>\nC\u8a00\u8a9e\u88fd\u30e9\u30a4\u30d6\u30e9\u30ea\u304b\u3089\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u66f8\u304d\u65b9\u3068\u307e\u3063\u305f\u304f\u540c\u3058\u3067\u3042\u308b\u3002<br \/>\nRust\u304cC\u8a00\u8a9e\u306e\u4ed5\u69d8\u306b\u5408\u308f\u305b\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"cp\">#include<\/span><span class=\"cpf\">&lt;stdio.h&gt;<\/span>\r\n\r\n<span class=\"c1\">\/\/ Rust\u3067\u4f5c\u3063\u305f\u95a2\u6570\u306e\u5b9a\u7fa9\u3092\u8a18\u8ff0<\/span>\r\n<span class=\"kt\">int<\/span> <span class=\"nf\">rs_add<\/span><span class=\"p\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">a<\/span><span class=\"p\">,<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">b<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"kt\">int<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c1\">\/\/ Rust\u88fd\u95a2\u6570\u3092\u4f7f\u7528<\/span>\r\n    <span class=\"kt\">int<\/span> <span class=\"n\">ans<\/span> <span class=\"o\">=<\/span> <span class=\"n\">rs_add<\/span><span class=\"p\">(<\/span><span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">6<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"n\">printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%d\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">ans<\/span><span class=\"p\">);<\/span>\r\n\r\n    <span class=\"k\">return<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>C\u8a00\u8a9e\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u306b\u306f\u300cx64 Native Tools Command Prompt for VS 20xx\u300d\u3092\u4f7f\u3046\u3002<\/p>\n<p>Visual Studio\u3092\u4f7f\u3046\u3053\u3068\u3082\u53ef\u80fd\u3060\u304c\u3001\u3053\u306e\u7a0b\u5ea6\u306e\u5c0f\u5b9f\u9a13\u306b\u6301\u3061\u51fa\u3059\u306e\u306f\u9762\u5012\u304f\u3055\u3044\u3002<br \/>\n\u305d\u308c\u3068\u4eca\u56de\u306fFFI\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u76ee\u7684\u306a\u306e\u3067\u3001Rust\u3092cargo\u3092\u4f7f\u308f\u305arustc\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u306e\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u4e0d\u5fc5\u8981\u306a\u51e6\u7406\u3092\u4ecb\u5728\u3055\u305b\u306a\u3044\u3082\u3063\u3068\u3082\u5358\u7d14\u306a\u65b9\u6cd5\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u305f\u3044\u3002<\/p>\n<p>MSVC\u74b0\u5883\u306b\u304a\u3051\u308bC\u8a00\u8a9e\u306e\u30b3\u30f3\u30d1\u30a4\u30e9\u306fcl\u3068\u3044\u3046\u30b3\u30de\u30f3\u30c9\u3060\u304c\u3001\u901a\u5e38\u306e\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3084PowerShell\u304b\u3089\u3067\u306f\u4f7f\u7528\u3067\u304d\u306a\u3044\u3002<br \/>\nPath\u3092\u8a2d\u5b9a\u3059\u308c\u3070\u4e0d\u53ef\u80fd\u3067\u306f\u306a\u3044\u3060\u308d\u3046\u304c\u3001\u4ed6\u306b\u3082\u3044\u304f\u3064\u304b\u306e\u74b0\u5883\u5909\u6570\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u308f\u304b\u308a\u306b\u304f\u3044\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5d1937434c4406cf0957\/18-0.png\" alt=\"pic.PNG\" \/><\/div>\n<p>\u305d\u3057\u3066cl\u30b3\u30de\u30f3\u30c9\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3002<\/p>\n<pre class=\"post-pre\"><code>&gt; cd \uff08\u4f5c\u696d\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\uff09\r\n&gt; cl use_rs.c rs_add.dll.lib\r\n<\/code><\/pre>\n<p>\u5b8c\u6210\u3057\u305f\u5b9f\u884c\u30d5\u30a1\u30a4\u30ebuse_rs.exe\u306f\u300cNative Tools\uff5e\u300d\u304b\u3089\u3067\u3082\u3001\u901a\u5e38\u306e\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3084PowerShell\u304b\u3089\u3067\u3082\u5b9f\u884c\u53ef\u80fd\u3002<br \/>\n\u203b7\/26\u8ffd\u8a18<br \/>\n\u305f\u3060\u3057rs_add.dll\u304c\u540c\u4e00\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u5b58\u5728\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code>&gt; .\/use_rs.exe\r\n10\r\n<\/code><\/pre>\n<h1>Rust\u88fd\u30e9\u30a4\u30d6\u30e9\u30ea\u3092Python\u3067\u4f7f\u3046<\/h1>\n<p>Rust\u88fd\u30e9\u30a4\u30d6\u30e9\u30ears_add.dll\u306e\u4f5c\u6210\u307e\u3067\u306f\u524d\u9805\u3068\u540c\u3058\u3002<br \/>\nPython\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u672c\u4f53\u3092\u4f5c\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"n\">os<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"n\">ctypes<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">cdll<\/span>\r\n\r\n<span class=\"n\">libfile<\/span> <span class=\"o\">=<\/span> <span class=\"sh\">\"<\/span><span class=\"s\">rs_add.dll<\/span><span class=\"sh\">\"<\/span>\r\n<span class=\"n\">cwd<\/span> <span class=\"o\">=<\/span> <span class=\"n\">os<\/span><span class=\"p\">.<\/span><span class=\"nf\">getcwd<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">libpath<\/span> <span class=\"o\">=<\/span> <span class=\"n\">os<\/span><span class=\"p\">.<\/span><span class=\"n\">path<\/span><span class=\"p\">.<\/span><span class=\"nf\">join<\/span><span class=\"p\">(<\/span><span class=\"n\">cwd<\/span><span class=\"p\">,<\/span> <span class=\"n\">libfile<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"n\">rslib<\/span> <span class=\"o\">=<\/span> <span class=\"n\">cdll<\/span><span class=\"p\">.<\/span><span class=\"nc\">LoadLibrary<\/span><span class=\"p\">(<\/span><span class=\"n\">libpath<\/span><span class=\"p\">)<\/span>\r\n<span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"n\">rslib<\/span><span class=\"p\">.<\/span><span class=\"nf\">rs_add<\/span><span class=\"p\">(<\/span><span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">6<\/span><span class=\"p\">))<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u308c\u3092rs_add.dll\u3068\u540c\u4e00\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u914d\u7f6e\u3057\u3066\u5b9f\u884c\u3059\u308c\u3070\u3088\u3044\u3002<br \/>\n\uff08os.getcwd()\u3092\u4f7f\u3063\u3066\u3044\u308b\u95a2\u4fc2\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u3042\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3067\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u3042\u308a\uff09<\/p>\n<pre class=\"post-pre\"><code>&gt; python .\/use_rs.py\r\n10\r\n<\/code><\/pre>\n<details>8\/5\u4fee\u6b63\u4ee5\u524d\u306e\u5185\u5bb9use_rs.py<br \/>\nimport os<br \/>\nfrom ctypes import cdll<\/p>\n<p>libfile = &#8220;rs_add.dll&#8221;<br \/>\n# 8\/5\u4fee\u6b63\u7b87\u6240<br \/>\nlibpath = os.path.join(os.path.dirname(__file__), libfile)<\/p>\n<p>rslib = cdll.LoadLibrary(libpath)<br \/>\nprint(rslib.rs_add(4, 6))<\/p>\n<p>\u306a\u304aVS Code\u306e\u30bf\u30fc\u30df\u30ca\u30eb\uff08PowerShell\uff09\u3001\u5916\u90e8\u306e\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3067\u306f\u4f55\u6545\u304b\u3046\u307e\u304f\u5b9f\u884c\u3067\u304d\u306a\u304b\u3063\u305f\u3002<br \/>\n\u5916\u90e8\u306ePowerShell\u3092\u4f7f\u3046\u304b\u3001VS Code\u3067\u300c\u53f3\u30af\u30ea\u30c3\u30af \u2192 \u30bf\u30fc\u30df\u30ca\u30eb\u3067Python\u30d5\u30a1\u30a4\u30eb\u3092\u5b9f\u884c\u3059\u308b\u300d\u306a\u3089\u3070\u5b9f\u884c\u6210\u529f\u3002<br \/>\n\u203b7\/26\u8ffd\u8a18<br \/>\n\u518d\u8a66\u884c\u3057\u305f\u3068\u3053\u308d\u3001\u5916\u90e8\u306ePowerShell\u3067\u3082\u5b9f\u884c\u3067\u304d\u305f\u308a\u3067\u304d\u306a\u304b\u3063\u305f\u308a\u3057\u305f\u3002<br \/>\nPython\u306e\u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u554f\u984c\u306b\u95a2\u308f\u3063\u3066\u3044\u305d\u3046\u306a\u6c17\u304c\u3059\u308b\u3002<br \/>\n\u8ab2\u984c\u3002<br \/>\n\u306a\u304ause_rs.py\u3092\u30d5\u30eb\u30d1\u30b9\u3067\u6307\u5b9a\u3059\u308c\u3070\u3069\u306e\u74b0\u5883\u304b\u3089\u3067\u3082\u6210\u529f\u3057\u305f\u3002<br \/>\n&gt; python C:\/Users\/\uff08\u7565\uff09\/rust\/ffi\/use_rs.py<br \/>\n10<\/p>\n<\/details>\n<p>\u4fee\u6b63\u306e\u8a73\u7d30\u306f\u3053\u3061\u3089\u3002<\/p>\n<h1>C\u8a00\u8a9e\u88fd\u30e9\u30a4\u30d6\u30e9\u30ea\u3092Rust\u3067\u4f7f\u3046<\/h1>\n<p>Rust\u3068C\u8a00\u8a9e\u306e\u95a2\u4fc2\u3092\u9006\u306b\u3059\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"cp\">#include<\/span><span class=\"cpf\">&lt;stdio.h&gt;<\/span>\r\n\r\n<span class=\"kt\">int<\/span> <span class=\"nf\">c_add<\/span><span class=\"p\">(<\/span><span class=\"kt\">int<\/span> <span class=\"n\">a<\/span><span class=\"p\">,<\/span> <span class=\"kt\">int<\/span> <span class=\"n\">b<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">a<\/span> <span class=\"o\">+<\/span> <span class=\"n\">b<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u300cx64 Native Tools Command Prompt for VS 20xx\u300d\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3066.lib\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b\u3002<br \/>\n\u307e\u305a\u306f.lib\u30d5\u30a1\u30a4\u30eb\u306e\u7d20\u3068\u306a\u308b.obj\u30d5\u30a1\u30a4\u30eb\u3092\u51fa\u529b\u3002<\/p>\n<pre class=\"post-pre\"><code>&gt; cl \/c c_add.c\r\n<\/code><\/pre>\n<ul class=\"post-ul\">c_add.obj<\/ul>\n<p>\u307e\u305f\u306f\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3082\u53ef\u3002<br \/>\n\u3053\u306e\u5834\u5408\u306f2\u30d5\u30a1\u30a4\u30eb\u304c\u51fa\u529b\u3055\u308c\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code>&gt; cl c_add.c \/LD\r\n<\/code><\/pre>\n<p>c_add.dll \u2190 \u4e0d\u4f7f\u7528\u3002<br \/>\nc_add.obj<\/p>\n<p>\u305d\u3057\u3066.obj\u30d5\u30a1\u30a4\u30eb\u304b\u3089.lib\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b\u3002<br \/>\n\u3053\u308c\u3067\u6e96\u5099\u5b8c\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code>&gt; lib c_add.obj\r\n<\/code><\/pre>\n<p>c_add.lib\u2190\u9759\u7684\uff08Static\uff09\u30ea\u30f3\u30af\u30e9\u30a4\u30d6\u30e9\u30ea\u3002<\/p>\n<p>.lib\u30d5\u30a1\u30a4\u30eb\u3092\u4f7f\u3046Rust\u88fd\u30d7\u30ed\u30b0\u30e9\u30e0\u672c\u4f53\u3092\u4f5c\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">use<\/span> <span class=\"nn\">std<\/span><span class=\"p\">::<\/span><span class=\"nn\">os<\/span><span class=\"p\">::<\/span><span class=\"nn\">raw<\/span><span class=\"p\">::<\/span><span class=\"nb\">c_int<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"c1\">\/\/ static\uff08\u9759\u7684\uff09\u30ea\u30f3\u30af\u3092\u6307\u5b9a<\/span>\r\n<span class=\"nd\">#[link(name<\/span> <span class=\"nd\">=<\/span> <span class=\"s\">\"c_add\"<\/span><span class=\"nd\">,<\/span> <span class=\"nd\">kind<\/span> <span class=\"nd\">=<\/span> <span class=\"s\">\"static\"<\/span><span class=\"nd\">)]<\/span>\r\n<span class=\"k\">extern<\/span> <span class=\"s\">\"C\"<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">c_add<\/span><span class=\"p\">(<\/span><span class=\"n\">a<\/span><span class=\"p\">:<\/span> <span class=\"nb\">c_int<\/span><span class=\"p\">,<\/span> <span class=\"n\">b<\/span><span class=\"p\">:<\/span> <span class=\"nb\">c_int<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">c_int<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">unsafe<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nd\">println!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"{}\"<\/span><span class=\"p\">,<\/span> <span class=\"nf\">c_add<\/span><span class=\"p\">(<\/span><span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">6<\/span><span class=\"p\">));<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3066\u5b9f\u884c\u3002<\/p>\n<pre class=\"post-pre\"><code>&gt; rustc use_c.rs -L c_add.lib`\r\n&gt; .\/use_c.exe\r\n10\r\n<\/code><\/pre>\n<p>\u203b7\/26\u8ffd\u8a18<br \/>\n\u3053\u308c\u306f\u524d2\u9805\u3068\u306f\u7570\u306a\u308a\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u9759\u7684\u30ea\u30f3\u30af\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001c_add.lib\u7b49\u306e\u30d5\u30a1\u30a4\u30eb\u304c\u540c\u4e00\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u7f6e\u304b\u308c\u3066\u3044\u308b\u5fc5\u8981\u304c\u306a\u3044\u3002<br \/>\n\u3064\u307e\u308ause_c.exe\u306e\u307f\u3092\u5225\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u79fb\u52d5\u3055\u305b\u3066\u3082\u5b9f\u884c\u3067\u304d\u308b\u3002<\/p>\n<h1>\u88dc\u8db3<\/h1>\n<p>\u300cx64 Native Tools Command Prompt\u300d\u3067cl \/help\uff08\u307e\u305f\u306fcl \/?\uff09\u3068\u3059\u308c\u3070cl\u306e\u8aac\u660e\u3001\u30b3\u30de\u30f3\u30c9\u4e00\u89a7\u304c\u8868\u793a\u3067\u304d\u308b\uff08\u9577\u3044\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>&gt; cl \/help\r\n\uff08\u7565\uff09\r\n                                -\u30ea\u30f3\u30af-\r\n\r\n\/LD .DLL \u3092\u4f5c\u6210\u3059\u308b                     \/LDd .DLL \u30c7\u30d0\u30c3\u30b0 \u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f5c\u6210\u3059\u308b\r\n\/LN .netmodule \u3092\u4f5c\u6210\u3059\u308b               \/F&lt;num&gt; \u30b9\u30bf\u30c3\u30af \u30b5\u30a4\u30ba\u3092\u8a2d\u5b9a\u3059\u308b\r\n\/link [\u30ea\u30f3\u30ab\u30fc \u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u30e9\u30a4\u30d6\u30e9\u30ea] \/MD MSVCRT.LIB \u3067\u30ea\u30f3\u30af\u3059\u308b\r\n\uff08\u7565\uff09\r\n<\/code><\/pre>\n<h1>\u53c2\u8003<\/h1>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rust\u3067FFI\u95a2\u9023\u306e\u7df4\u7fd2\u3092\u3057\u305f\u3002 \u3059\u3079\u3066Windows MSVC\u74b0\u5883\u3002 FFI = Foreign Func [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45100","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, 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