{"id":78777,"date":"2024-03-20T20:17:08","date_gmt":"2024-03-20T11:17:08","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/c-%e8%a8%80%e8%aa%9e%e3%81%ae-malloc-%e9%96%a2%e6%95%b0%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e9%80%a3%e7%b5%90%e3%83%aa%e3%82%b9%e3%83%88%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99%e3%82%8b%e6%96%b9\/"},"modified":"2025-08-12T03:50:08","modified_gmt":"2025-08-11T18:50:08","slug":"c-%e8%a8%80%e8%aa%9e%e3%81%ae-malloc-%e9%96%a2%e6%95%b0%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e9%80%a3%e7%b5%90%e3%83%aa%e3%82%b9%e3%83%88%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99%e3%82%8b%e6%96%b9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/c-%e8%a8%80%e8%aa%9e%e3%81%ae-malloc-%e9%96%a2%e6%95%b0%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e9%80%a3%e7%b5%90%e3%83%aa%e3%82%b9%e3%83%88%e3%82%92%e5%ae%9f%e8%a3%85%e3%81%99%e3%82%8b%e6%96%b9\/","title":{"rendered":"C \u8a00\u8a9e\u306e malloc \u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u9023\u7d50\u30ea\u30b9\u30c8\u3092\u5b9f\u88c5\u306e\u65b9\u6cd5"},"content":{"rendered":"<p>malloc\u95a2\u6570\u3067\u30e1\u30e2\u30ea\u30fc\u3092\u78ba\u4fdd\u3057\u3001\u30dd\u30a4\u30f3\u30bf\u30fc\u3067\u30ce\u30fc\u30c9\u540c\u58eb\u3092\u3064\u306a\u3052\u308c\u3070LinkedList\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306bmalloc\u95a2\u6570\u3092\u5229\u7528\u3057\u305fLinkedList\u4f5c\u6210\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;stdio.h&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;stdlib.h&gt;<\/span><\/span>\r\n\r\n<span class=\"hljs-comment\">\/\/ \u5b9a\u4e49\u94fe\u8868\u8282\u70b9\u7ed3\u6784<\/span>\r\n<span class=\"hljs-keyword\">typedef<\/span> <span class=\"hljs-class\"><span class=\"hljs-keyword\">struct<\/span> <span class=\"hljs-title\">Node<\/span> {<\/span>\r\n    <span class=\"hljs-type\">int<\/span> data;\r\n    <span class=\"hljs-class\"><span class=\"hljs-keyword\">struct<\/span> <span class=\"hljs-title\">Node<\/span>* <span class=\"hljs-title\">next<\/span>;<\/span>\r\n} Node;\r\n\r\n<span class=\"hljs-comment\">\/\/ \u521b\u5efa\u94fe\u8868\u51fd\u6570<\/span>\r\nNode* <span class=\"hljs-title function_\">createList<\/span><span class=\"hljs-params\">(<span class=\"hljs-type\">int<\/span> n)<\/span> {\r\n    Node* head = <span class=\"hljs-literal\">NULL<\/span>;\r\n    Node* temp = <span class=\"hljs-literal\">NULL<\/span>;\r\n    Node* p = <span class=\"hljs-literal\">NULL<\/span>;\r\n    <span class=\"hljs-type\">int<\/span> i;\r\n\r\n    <span class=\"hljs-keyword\">for<\/span> (i = <span class=\"hljs-number\">0<\/span>; i &lt; n; i++) {\r\n        temp = (Node*)<span class=\"hljs-built_in\">malloc<\/span>(<span class=\"hljs-keyword\">sizeof<\/span>(Node)); <span class=\"hljs-comment\">\/\/ \u5206\u914d\u8282\u70b9\u5185\u5b58<\/span>\r\n        <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u8f93\u5165\u7b2c %d \u4e2a\u8282\u70b9\u7684\u503c: \"<\/span>, i+<span class=\"hljs-number\">1<\/span>);\r\n        <span class=\"hljs-built_in\">scanf<\/span>(<span class=\"hljs-string\">\"%d\"<\/span>, &amp;temp-&gt;data);\r\n        temp-&gt;next = <span class=\"hljs-literal\">NULL<\/span>;\r\n\r\n        <span class=\"hljs-keyword\">if<\/span> (head == <span class=\"hljs-literal\">NULL<\/span>) {\r\n            head = temp;\r\n        } <span class=\"hljs-keyword\">else<\/span> {\r\n            p = head;\r\n            <span class=\"hljs-keyword\">while<\/span> (p-&gt;next != <span class=\"hljs-literal\">NULL<\/span>) {\r\n                p = p-&gt;next;\r\n            }\r\n            p-&gt;next = temp;\r\n        }\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">return<\/span> head;\r\n}\r\n\r\n<span class=\"hljs-comment\">\/\/ \u6253\u5370\u94fe\u8868\u51fd\u6570<\/span>\r\n<span class=\"hljs-type\">void<\/span> <span class=\"hljs-title function_\">printList<\/span><span class=\"hljs-params\">(Node* head)<\/span> {\r\n    Node* p = head;\r\n\r\n    <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u94fe\u8868\u7684\u503c\u4e3a: \"<\/span>);\r\n    <span class=\"hljs-keyword\">while<\/span> (p != <span class=\"hljs-literal\">NULL<\/span>) {\r\n        <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"%d \"<\/span>, p-&gt;data);\r\n        p = p-&gt;next;\r\n    }\r\n    <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\\n\"<\/span>);\r\n}\r\n\r\n<span class=\"hljs-type\">int<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">()<\/span> {\r\n    <span class=\"hljs-type\">int<\/span> n;\r\n    Node* head = <span class=\"hljs-literal\">NULL<\/span>;\r\n\r\n    <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u8f93\u5165\u94fe\u8868\u7684\u8282\u70b9\u4e2a\u6570: \"<\/span>);\r\n    <span class=\"hljs-built_in\">scanf<\/span>(<span class=\"hljs-string\">\"%d\"<\/span>, &amp;n);\r\n\r\n    head = createList(n);\r\n    printList(head);\r\n\r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u3001\u307e\u305a\u6574\u6570\u306e\u30c7\u30fc\u30bf\u3068\u6b21\u306e\u30ce\u30fc\u30c9\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u542b\u3080Node\u69cb\u9020\u4f53\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u6b21\u306b\u3001createList\u95a2\u6570\u3067malloc\u3092\u4f7f\u7528\u3057\u3066\u30e1\u30e2\u30ea\u3092\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u3001\u30ea\u30f3\u30af\u30ea\u30b9\u30c8\u3092\u4f5c\u6210\u3057\u3001\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\u3057\u3066\u5404\u30ce\u30fc\u30c9\u3092\u63a5\u7d9a\u3057\u307e\u3059\u3002\u6700\u5f8c\u30d7\u30ea\u30f3\u30c8\u30ea\u30b9\u30c8\u95a2\u6570\u3067\u30ea\u30f3\u30af\u30ea\u30b9\u30c8\u306e\u5024\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n<p>main\u95a2\u6570\u3067\u3001\u307e\u305a\u30ea\u30b9\u30c8\u5185\u306e\u30ce\u30fc\u30c9\u306e\u6570\u3092\u6307\u5b9a\u3057\u3001\u6b21\u306bcreateList \u95a2\u6570\u3067\u30ea\u30b9\u30c8\u3092\u4f5c\u6210\u3057\u3001printList \u95a2\u6570\u3067\u30ea\u30b9\u30c8\u306e\u5024\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n<p>malloc\u3067\u751f\u6210\u3057\u305f\u30ea\u30f3\u30af\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u306a\u304f\u306a\u3063\u305f\u5834\u5408\u306f\u3001\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u306b\u624b\u52d5\u3067\u30e1\u30e2\u30ea\u3092\u89e3\u653e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u30ea\u30f3\u30af\u30ea\u30b9\u30c8\u3092\u30eb\u30fc\u30d7\u3067\u30c8\u30e9\u30d0\u30fc\u30b9\u3057\u3001free\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u5404\u30ce\u30fc\u30c9\u306e\u30e1\u30e2\u30ea\u3092\u89e3\u653e\u3057\u3001\u6700\u5f8c\u306b\u30d8\u30c3\u30c9 \u30ce\u30fc\u30c9\u306e\u30e1\u30e2\u30ea\u3092\u89e3\u653e\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>malloc\u95a2\u6570\u3067\u30e1\u30e2\u30ea\u30fc\u3092\u78ba\u4fdd\u3057\u3001\u30dd\u30a4\u30f3\u30bf\u30fc\u3067\u30ce\u30fc\u30c9\u540c\u58eb\u3092\u3064\u306a\u3052\u308c\u3070LinkedList\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306bmalloc\u95a2\u6570\u3092\u5229\u7528\u3057\u305fLinkedList\u4f5c\u6210\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 #include &lt;stdio.h [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-78777","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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