{"id":25878,"date":"2021-08-01T08:10:11","date_gmt":"1970-01-01T00:00:00","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=25878"},"modified":"2024-05-06T11:43:36","modified_gmt":"2024-05-06T02:43:36","slug":"%e3%80%90c%e8%a8%80%e8%aa%9e%e5%85%a5%e9%96%80%e3%80%91%e6%96%87%e5%ad%97%e5%88%97%e3%81%ae%e9%80%a3%e7%b5%90%e3%83%bb%e5%88%86%e5%89%b2","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/25878","title":{"rendered":"\u3010C\u8a00\u8a9e\u5165\u9580\u3011\u6587\u5b57\u5217\u306e\u9023\u7d50\u30fb\u5206\u5272(strcat\u3001strtok)"},"content":{"rendered":"<p>\u6587\u5b57\u5217\u306e\u9023\u7d50\u30fb\u5206\u5272\u95a2\u6570\u3092\u4f7f\u3063\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3067\u3057\u3087\u3046\u304b?<\/p>\n<p>C\u8a00\u8a9e\u3067\u306f\u305d\u308c\u305e\u308c\u4fbf\u5229\u306a\u95a2\u6570\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u5b66\u3093\u3067\u307f\u307e\u3057\u3087\u3046!<\/p>\n<p><div class=\"box_voice\"><br \/>\n<b>\u8907\u6570\u306e\u6587\u5b57\u5217\u3092\u4e00\u3064\u306b\u7e4b\u3052\u305f\u3044<\/p>\n<p>\u533a\u5207\u308a\u6587\u5b57\u3092\u6301\u3063\u305f\u6587\u5b57\u5217\u3092\u5206\u89e3\u3057\u305f\u3044<\/b><br \/>\n<\/div><\/p>\n<p>\u4eca\u56de\u306f\u305d\u3093\u306a\u8ab2\u984c\u3092\u6301\u3064\u4eba\u305f\u3061\u306b\u5411\u3051\u3066\u3001strcat\u95a2\u6570\u3084strtok\u95a2\u6570\u306b\u3064\u3044\u3066\u307f\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<div class=\"box01\">\n<ul>\n<li>[\u57fa\u672c]strcat\u3067\u6587\u5b57\u5217\u3092\u7d50\u5408\u3059\u308b\u65b9\u6cd5<\/li>\n<li>[\u57fa\u672c]sprintf\u3067\u6587\u5b57\u5217\u3092\u7d50\u5408\u3059\u308b\u65b9\u6cd5<\/li>\n<li>[\u5fdc\u7528]strcat\u3001sprintf\u95a2\u6570\u3092\u4f7f\u308f\u306a\u3044\u65b9\u6cd5<\/li>\n<li>[\u57fa\u672c]strcat\u95a2\u6570\u306b\u3088\u308b\u6587\u5b57\u5217\u306e\u5206\u5272\u306b\u3064\u3044\u3066<\/li>\n<li>[\u5fdc\u7528]\u6587\u5b57\u5217\u306e\u4f7f\u3044\u65b9\u7dcf\u307e\u3068\u3081<\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u306e\u3088\u3046\u306a\u5185\u5bb9\u3067\u3001\u6587\u5b57\u5217\u306e\u9023\u7d50\u30fb\u5206\u5272\u306b\u3064\u3044\u3066\u3001\u4f7f\u3044\u65b9\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u306d\uff01<\/p>\n<p>\u3088\u308d\u3057\u304f\u304a\u9858\u3044\u3044\u305f\u3057\u307e\u3059\u3002<\/p>\n<h2>\u6587\u5b57\u5217\u306e\u9023\u7d50\u306b\u3064\u3044\u3066<\/h2>\n<p><b>\uff12\u3064\u306e\u6587\u5b57\u5217\u3092\u9023\u7d50<\/b>\u3059\u308b\u306b\u306fstrcat\u95a2\u6570\u3092\u3088\u304f\u4f7f\u3044\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306b\u3082sprintf\u95a2\u6570\u3092\u4f7f\u3046\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3057\u3001\u3069\u3061\u3089\u3082\u4f7f\u308f\u306a\u3044\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u3001\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>strcat\u3067\u7d50\u5408\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>\u307e\u305a\u306f\u3001strcat\u95a2\u6570\u3092\u4f7f\u3046\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u95a2\u6570\u3092\u4f7f\u3046\u305f\u3081\u306b\u306f\u3001\u307e\u305a\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u300cstring.h\u300d\u304c\u5fc5\u8981\u3067\u3059\u3002\u6700\u521d\u306b\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u6b21\u306bstracat\u95a2\u6570\u306e\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9\u3067\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u3001\u7b2c1\u5f15\u6570\u306b\u6307\u5b9a\u3057\u305f\u6587\u5b57\u5217\u306e\u6700\u5f8c\u306b\u3001\u7b2c2\u5f15\u6570\u306b\u6307\u5b9a\u3057\u305f\u6587\u5b57\u5217\u3092\u8ffd\u52a0\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3055\u3063\u305d\u304f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046!<\/p>\n<pre class=\"lang:c decode:true \">#include &lt;stdio.h&gt;\r\n#include &lt;string.h&gt;\r\n \r\nint main(void) {\r\n    char str1[30] = \"Hello \";\r\n    char str2[] = \"World!\";\r\n    \r\n    \/\/ \u6587\u5b57\u5217\u306e\u9023\u7d50\r\n    strcat(str1, str2);\r\n    printf(\"str1\u306e\u6587\u5b57\u5217\u306f: %s\\n\", str1);\r\n    \r\n    return 0;\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">str1\u306e\u6587\u5b57\u5217\u306f: Hello World!<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u6587\u5b57\u5217\u300cstr1\u300d\u306b\u300cstr2\u300d\u3092\u8ffd\u52a0\u3057\u3001\u305d\u306e\u5f8c\u300cstr1\u300d\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u6642\u3010 \u300cstr1\u300d\u306b\u300cstr2\u300d\u3092\u8ffd\u52a0 \u3011\u3068\u3044\u3046\u306e\u304c\u6ce8\u610f\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u70b9\u3067\u3059\u3002<\/p>\n<p>str1\u5909\u6570\u3078\u300cHello World!\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u304c\u5165\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002str1\u5909\u6570\u306b\u7d50\u5408\u5f8c\u306e\u6587\u5b57\u5217\u304c\u5165\u308a\u304d\u3089\u306a\u3044\u5834\u5408\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p>\u7b2c\u4e00\u5f15\u6570\u3078\u6e21\u3059\u5909\u6570\u306f\u5fc5\u305a\u3001<b>\u7d50\u5408\u5f8c\u306e\u6587\u5b57\u5217\u304c\u5165\u308b\u5927\u304d\u3055\u3092\u78ba\u4fdd<\/b>\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>sprintf\u3067\u7d50\u5408\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>sprintf\u95a2\u6570\u3092\u4f7f\u3063\u3066<b>\u6587\u5b57\u5217\u3092\u7d50\u5408\u3055\u305b\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/b><\/p>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">sprintf(\u4ee3\u5165\u3059\u308b\u6587\u5b57\u5217\u540d, \u201c\u51fa\u529b\u6587\u5b57\u5217\u66f8\u5f0f\u201d, \u5909\u65701, \u5909\u65702, \u30fb\u30fb\u30fb\u30fb)<\/pre>\n<p>sprintf\u95a2\u6570\u306e\u7b2c3\u5f15\u6570\u4ee5\u964d\u306f\u53ef\u5909\u9577\u5909\u6570\u3067\u3059\u3002<\/p>\n<p>\u3067\u3059\u306e\u3067\u3001sprintf\u95a2\u6570\u3067\u306f<b>3\u3064\u4ee5\u4e0a\u306e\u6587\u5b57\u5217\u3082\u9023\u7d50\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/b><\/p>\n<p>sprintf\u95a2\u6570\u306e\u7b2c1\u5f15\u6570\u306b\u4ee3\u5165\u3059\u308b\u6587\u5b57\u914d\u5217\u540d\u3092\u6307\u5b9a\u3057\u3001\u7b2c2\u5f15\u6570\u306b\u51fa\u529b\u6587\u5b57\u5217\u3092\u3001\u7b2c3\u5f15\u6570\u4ee5\u964d\u306b\u51fa\u529b\u6587\u5b57\u5217\u306b\u542b\u307e\u308c\u308b\u5909\u6570\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:c decode:true \">#include &lt;stdio.h&gt;\r\n \r\nint main(void) {\r\n    char *str1 = \"Hello\";\r\n    char *str2 = \"World!\";\r\n \r\n    char str3[30];\r\n \r\n    sprintf(str3, \"%s %s\\n\", str1, str2);\r\n    printf(\"%s\", str3);\r\n \r\n    return 0;\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">Hello World!<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306fsprintf\u95a2\u6570\u3092\u4f7f\u3063\u3066\u3001\u6587\u5b57\u914d\u5217\u300cstr1\u300d\u3068\u300cstr2\u300d\u3092\u4f7f\u7528\u3057\u305f\u51fa\u529b\u6587\u5b57\u5217\u3092\u6587\u5b57\u5217\u300cstr3\u300d\u306b\u4ee3\u5165\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u6587\u5b57\u5217\u300cstr3\u300d\u3092printf\u95a2\u6570\u3092\u4f7f\u3063\u3066\u51fa\u529b\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>sprintf\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u3061\u3089\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/24934\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/c_printf-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010C\u8a00\u8a9e\u5165\u9580\u3011printf\u3067\u6587\u5b57\u5217\u3092\u8868\u793a(sprintf\u306e\u4f7f\u3044\u65b9\u3082\u89e3\u8aac)<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h3>strcat\u3001sprintf\u95a2\u6570\u3092\u4f7f\u308f\u306a\u3044\u65b9\u6cd5<\/h3>\n<p>\u3053\u308c\u307e\u3067\u6587\u5b57\u5217\u306e\u9023\u7d50\u306b\u3064\u3044\u3066\u3001strcat\u95a2\u6570\u304a\u3088\u3073sprintf\u95a2\u6570\u3092\u4f7f\u3046\u65b9\u6cd5\u306b\u3064\u3044\u3066\u304a\u4f1d\u3048\u3057\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u4f7f\u3046\u30bf\u30a4\u30df\u30f3\u30b0\u306f\u9650\u3089\u308c\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306e\u65b9\u6cd5\u4ee5\u5916\u306b\u3082\u95a2\u6570\u3092\u4f7f\u308f\u305a\u306b\u3001\u9023\u7d50\u3059\u308b\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<b>\u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u3092\u4e26\u3079\u308b\u3060\u3051\u3067\u9023\u7d50\u3055\u305b\u308b\u65b9\u6cd5<\/b>\u3067\u3059\u3002<\/p>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:c decode:true \">#include &lt;stdio.h&gt;\r\n \r\nint main(void) {\r\n    char str[] = \"Hello \" \"World!\";\r\n\r\n    printf(\"%s\", str);\r\n \r\n    return 0;\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">Hello World!<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001\u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u3092\u4e26\u3079\u3066\u521d\u671f\u5316\u3057\u305f\u6587\u5b57\u5217str\u3092\u5ba3\u8a00\u3001\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u6587\u5b57\u5217\u3092printf\u95a2\u6570\u3092\u4f7f\u3063\u3066\u8868\u793a\u78ba\u8a8d\u3059\u308b\u3068\u30012\u3064\u306e\u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u304c\u9023\u7d50\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<h2>\u6587\u5b57\u5217\u306e\u5206\u5272\u306b\u3064\u3044\u3066<\/h2>\n<p>\u6587\u5b57\u5217\u3092\u533a\u5207\u308a\u6587\u5b57\u3067\u5206\u5272\u3059\u308b\u306b\u306fstrtok\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<h3>strtok\u95a2\u6570\u306e\u4f7f\u3044\u65b9<\/h3>\n<p>\u4f7f\u3044\u65b9\u304c\u5c11\u3057\u96e3\u3057\u3044\u95a2\u6570\u3067\u3059\u306e\u3067\u3001\u4eca\u56de\u306f\u6700\u521d\u306b\u30b5\u30f3\u30d7\u30eb\u3092\u898b\u3066\u3001\u305d\u308c\u304b\u3089\u7406\u89e3\u3092\u6df1\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4eca\u56de\u306f\u6587\u5b57\u5217\u300c&#8221;Hello,Tokyo,Osaka,Nagoya&#8221;\u300d\u3092\u30ab\u30f3\u30de(,)\u533a\u5207\u308a\u306b\u3057\u3066\u3001\u500b\u5225\u306b\u51fa\u529b\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305a\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<pre class=\"lang:c decode:true \">#include \r\n#include \r\n\r\nint main(void) {\r\n    char str[32] = \"Hello,Tokyo,Osaka,Nagoya\";\r\n    char *ptr;\r\n    \r\n    \/\/ \u30ab\u30f3\u30de\u3092\u533a\u5207\u308a\u306b\u6587\u5b57\u5217\u3092\u5206\u5272\r\n    \/\/ 1\u56de\u76ee\r\n    ptr = strtok(str, \",\");\r\n    printf(\"%s\\n\", ptr);\r\n    \r\n    \/\/ 2\u56de\u76ee\u4ee5\u964d\r\n    while(ptr != NULL) {\r\n        \/\/ strtok\u95a2\u6570\u306b\u3088\u308a\u5909\u66f4\u3055\u308c\u305fNULL\u306e\u30dd\u30a4\u30f3\u30bf\u304c\u5148\u982d\r\n        ptr = strtok(NULL, \",\");\r\n        \r\n        \/\/ ptr\u304cNULL\u306e\u5834\u5408\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u306e\u3067\u5bfe\u51e6\r\n        if(ptr != NULL) {\r\n            printf(\"%s\\n\", ptr);\r\n        }\r\n    }\r\n    \r\n    return 0;\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">Hello\r\nTokyo\r\nOsaka\r\nNagoya\r\n<\/pre>\n<p>\u3061\u3083\u3093\u3068\u6587\u5b57\u5217\u300c&#8221;Hello,Tokyo,Osaka,Nagoya&#8221;\u300d\u304c\u30ab\u30f3\u30de\u533a\u5207\u308a\u3067\u3001\u305d\u308c\u305e\u308c\u8868\u793a\u3067\u304d\u3066\u3044\u307e\u3059\u306d!<\/p>\n<p>\u307e\u305astrtok\u95a2\u6570\u3092\u4f7f\u3046\u305f\u3081\u306b\u306f\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u300cstring.h\u300d\u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">#include \r\n<\/pre>\n<p>\u3053\u308c\u306f\u3044\u3064\u3082\u306e\u901a\u308a\u3067\u3059\u306d\u3002<\/p>\n<p>\u6b21\u306b\u4e3b\u5f79\u306estrtok\u95a2\u6570\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\/\/ \u30ab\u30f3\u30de\u3092\u533a\u5207\u308a\u306b\u6587\u5b57\u5217\u3092\u5206\u5272\r\n\/\/ 1\u56de\u76ee\r\nptr = strtok(str, \",\");\r\nprintf(\"%s\\n\", ptr);\r\n<\/pre>\n<p>strtok\u95a2\u6570\u306e\u7b2c1\u5f15\u6570\u306b\u306f\u5206\u89e3\u3059\u308b\u6587\u5b57\u5217\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u3001\u7b2c2\u5f15\u6570\u306b\u306f\u533a\u5207\u308a\u6587\u5b57\u7fa4\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u30ab\u30f3\u30de(,)\u3092\u533a\u5207\u308a\u6587\u5b57\u306b\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u306d!<\/p>\n<p>\u3053\u306e\u969b\u623b\u308a\u5024\u306f\u533a\u5207\u308a\u6587\u5b57\u304c\u767b\u5834\u3059\u308b\u307e\u3067\u306e\u3001\u6700\u521d\u306e\u6587\u5b57\u5217\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u8fd4\u3057\u307e\u3059\u3002\u3082\u3057\u533a\u5207\u308a\u6587\u5b57\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306fNULL\u3092\u8fd4\u3057\u307e\u3059\u30021\u56de\u76ee\u306b\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u308b\u3053\u306e\u90e8\u5206\u306f\u300cHello\u300d\u3092\u53d6\u5f97\u30fb\u8868\u793a\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u306d!<\/p>\n<p>\u305d\u3057\u3066<b>\u3053\u3053\u304b\u3089\u304c\u91cd\u8981\u306a\u70b9<\/b>\u3067\u3059\u3002<\/p>\n<p>2\u56de\u76ee\u4ee5\u964d\u306f\u7b2c1\u5f15\u6570\u3092NULL\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u7e70\u308a\u8fd4\u3057\u5b9f\u884c\u304c\u884c\u3048\u308b\u306e\u3067\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\/\/ 2\u56de\u76ee\u4ee5\u964d\r\nwhile(ptr != NULL) {\r\n    \/\/ strtok\u95a2\u6570\u306b\u3088\u308a\u5909\u66f4\u3055\u308c\u305fNULL\u306e\u30dd\u30a4\u30f3\u30bf\u304c\u5148\u982d\r\n    ptr = strtok(NULL, \",\");\r\n    \r\n    \/\/ ptr\u304cNULL\u306e\u5834\u5408\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u306e\u3067\u5bfe\u51e6\r\n    if(ptr != NULL) {\r\n        printf(\"%s\\n\", ptr);\r\n    }\r\n}\r\n<\/pre>\n<p>strtok\u95a2\u6570\u306f\u6b21\u306e\u6587\u5b57\u306e\u3001\u5148\u982d\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u5148\u307b\u3069\u8aac\u660e\u3057\u305f\u901a\u308a\u3001\u3082\u3046\u898b\u3064\u304b\u3089\u306a\u304f\u306a\u3063\u305f\u3089NULL\u3092\u8fd4\u3057\u3066\u304f\u308c\u308b\u308f\u3051\u306a\u306e\u3067\u3001while\u30eb\u30fc\u30d7\u3067\u7d42\u4e86\u3068\u5224\u5b9a\u3059\u308b\u5f62\u3067\u3001\u7e70\u308a\u8fd4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e00\u3064\u3065\u3064\u7d10\u89e3\u3044\u3066\u307f\u3066\u3044\u3051\u3070\u7c21\u5358\u306a\u4ed5\u7d44\u307f\u3067\u3059\u306d!<\/p>\n<h3>[\u88dc\u8db3]strtok\u95a2\u6570\u306e\u3044\u308d\u3044\u308d<\/h3>\n<p>\u533a\u5207\u308a\u6587\u5b57\u3067\u5206\u89e3\u3092\u884c\u3063\u3066\u304f\u308c\u308b\u300cstrtok\u95a2\u6570\u300d\u304c\u4fbf\u5229\u306a\u3053\u3068\u306f\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u3053\u3067\u306f\u3044\u304f\u3064\u304b\u88dc\u8db3\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>\u6e21\u3057\u305f\u6587\u5b57\u5217\u306b\u306f\u5909\u66f4\u304c\u304b\u304b\u308b<\/h4>\n<p>strtok\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u5206\u89e3\u3057\u305f\u6587\u5b57\u5217\u3078\u306f\u5909\u66f4\u304c\u304b\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u533a\u5207\u308a\u6587\u5b57\u304c\u6587\u5b57\u5217\u306e\u7d42\u7aef\u6587\u5b57NULL\u306b\u5909\u66f4\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002\u5143\u3005\u306e\u6587\u5b57\u5217\u304b\u3089\u5024\u304c\u5909\u308f\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\uff01<\/p>\n<h4>\u533a\u5207\u308a\u6587\u5b57\u306f\u8907\u6570\u8a2d\u5b9a\u3067\u304d\u308b<\/h4>\n<p>\u898b\u51fa\u3057\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<p>\u533a\u5207\u308a\u6587\u5b57\u306f\u8907\u6570\u8a2d\u5b9a\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u30b9\u30da\u30fc\u30b9\u3068\u30ab\u30f3\u30de(,)\u3092\u533a\u5207\u308a\u6587\u5b57\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">ptr = strtok(str, \" ,\");\r\n<\/pre>\n<h2>\u6587\u5b57\u5217\u306e\u4f7f\u3044\u65b9\u7dcf\u307e\u3068\u3081<\/h2>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u7d39\u4ecb\u3057\u304d\u308c\u306a\u304b\u3063\u305f\u6587\u5b57\u5217\u306e\u3044\u308d\u3044\u308d\u306a\u4f7f\u3044\u65b9\u3092\u6b21\u306e\u8a18\u4e8b\u306b\u307e\u3068\u3081\u3066\u3044\u308b\u306e\u3067\u3001\u305c\u3072\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/27057\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/c_moziretu-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010C\u8a00\u8a9e\u5165\u9580\u3011\u6587\u5b57\u5217\u3068\u306f\uff1f\u6587\u5b57\u5217\u306e\u4f7f\u3044\u65b9\u7dcf\u307e\u3068\u3081<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3053\u3053\u3067\u306f\u3001\u6587\u5b57\u5217\u3092\u9023\u7d50\u30fb\u5206\u5272\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u5834\u5408\u306fstrcat\u95a2\u6570\u3092\u3001\u5206\u5272\u3059\u308b\u5834\u5408\u306fstrtok\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>\u9023\u7d50\u3059\u308b\u5834\u5408\u306fsprintf\u95a2\u6570\u3092\u4f7f\u7528\u3057\u305f\u308a\u3001\u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u3092\u4e26\u3079\u308b\u3060\u3051\u3067\u9023\u7d50\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u95a2\u6570\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u3053\u306e\u8a18\u4e8b\u3092\u4f55\u5ea6\u3082\u53c2\u8003\u306b\u3057\u3066\u4e0b\u3055\u3044\u306d\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u5b57\u5217\u306e\u9023\u7d50\u30fb\u5206\u5272\u95a2\u6570\u3092\u4f7f\u3063\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3067\u3057\u3087\u3046\u304b? C\u8a00\u8a9e\u3067\u306f\u305d\u308c\u305e\u308c\u4fbf\u5229\u306a\u95a2\u6570\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u5b66\u3093\u3067\u307f\u307e\u3057\u3087\u3046! \u8907\u6570\u306e\u6587\u5b57\u5217\u3092\u4e00\u3064\u306b\u7e4b\u3052\u305f\u3044 \u533a\u5207\u308a\u6587\u5b57\u3092\u6301\u3063\u305f\u6587\u5b57\u5217\u3092\u5206\u89e3\u3057\u305f\u3044 \u4eca\u56de\u306f\u305d\u3093\u306a\u8ab2\u984c\u3092 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":38540,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"swell_btn_cv_data":"","footnotes":""},"categories":[2336],"tags":[66],"class_list":["post-25878","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-c-lang-study","tag-c"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sejuku.net\/blog\/25878\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010C\u8a00\u8a9e\u5165\u9580\u3011\u6587\u5b57\u5217\u306e\u9023\u7d50\u30fb\u5206\u5272(strcat\u3001strtok) | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010C\u8a00\u8a9e\u5165\u9580\u3011\u6587\u5b57\u5217\u306e\u9023\u7d50\u30fb\u5206\u5272(strcat\u3001strtok) 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