{"id":25592,"date":"2021-08-01T08:10:11","date_gmt":"1970-01-01T00:00:00","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=25592"},"modified":"2024-05-06T11:43:27","modified_gmt":"2024-05-06T02:43:27","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%e3%83%bb%e6%96%87%e5%ad%97%e5%88%97char%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/25592","title":{"rendered":"\u3010C\u8a00\u8a9e\u5165\u9580\u3011\u6587\u5b57\u30fb\u6587\u5b57\u5217(char)\u306e\u4f7f\u3044\u65b9"},"content":{"rendered":"<p>\u3042\u306a\u305f\u306f<span style=\"color: #339966;\"><strong>char<\/strong><\/span>\u578b\u3092\u4f7f\u3063\u3066\u307e\u3059\u304b\uff1f<\/p>\n<p>char\u578b\u306f\u6587\u5b57\u30fb\u6587\u5b57\u5217\u3084\u753b\u50cf\u3092256\u968e\u8abf\u3067\u8868\u3059\u5834\u5408\u306b\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002\u7279\u306b\u6587\u5b57\u5217\u306f\u914d\u5217\u3084\u30dd\u30a4\u30f3\u30bf\u3067\u6271\u3046\u306e\u3067\u8907\u96d1\u306b\u611f\u3058\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001char\u578b\u306b\u3064\u3044\u3066\u300c<strong>\u6587\u5b57(char)\u306e\u4f7f\u3044\u65b9\u300d\u300c<\/strong><strong>\u6587\u5b57\u5217(char\u914d\u5217)\u306e\u4f7f\u3044\u65b9\u300d<\/strong>\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u3001\u300c<strong>\u6587\u5b57\u5217\u3092\u6271\u3046\u95a2\u6570\u300d<\/strong>\u306a\u3069\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u3092\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u6587\u5b57(char)\u306e\u4f7f\u3044\u65b9<\/h2>\n<p>char\u3068\u306f<strong>1\u6587\u5b57\u3092\u683c\u7d0d\u3059\u308b\u30c7\u30fc\u30bf\u578b<\/strong>\u3067\u3059\u3002char\u578b\u306e\u5909\u6570\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u969b\u306b\u306f\u4ee3\u5165\u3059\u308b\u6587\u5b57\u3092\u300c<strong>\u2019 \u2019<\/strong>\u300d(\u30af\u30aa\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30de\u30fc\u30af)\u3067\u56f2\u307f\u307e\u3059\u3002<\/p>\n<p>char\u578b\u5909\u6570\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\u4f8b\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">char \u5909\u6570\u540d = \u2018\u6587\u5b57\u2019;<\/pre>\n<p>printf\u95a2\u6570\u306a\u3069\u3092\u4f7f\u3063\u3066\u51fa\u529b\u8868\u793a\u3059\u308b\u969b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306f\u300cc\u300d\u306b\u306a\u308a\u307e\u3059\u3002char\u578b\u306b\u306f\u7b26\u53f7\u4ed8\u304d\u306e\u300csingned char\u300d\u578b\u3068\u7b26\u53f7\u306a\u3057\u306e\u300cunsigned char\u300d\u578b\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>char\u306e\u524d\u306b\u4f55\u3082\u8a18\u8ff0\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u57fa\u672c\u7684\u306b\u300csingned char\u300d\u306b\u306a\u308a\u307e\u3059\u3002\u203b\u74b0\u5883\u306b\u3088\u3063\u3066\u306funsigned char\u3068\u306a\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002char\u578b\u306f\u6587\u5b57\u306e\u307b\u304b\u306b\u3082\u6570\u5024\u3092\u683c\u7d0d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6587\u5b57\u3092\u4ee3\u5165\u3057\u305f\u5909\u6570\u3092int\u578b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u300cd\u300d\u3067\u51fa\u529b\u8868\u793a\u3059\u308b\u3068\u3001\u5bfe\u5fdc\u3059\u308bASCII\u30b3\u30fc\u30c9\u306e\u6570\u5024\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u300c<strong>singned char<\/strong>\u300d\u578b\u306e\u5909\u6570\u306f<strong>-128~127<\/strong>\u306e\u5024\u3092\u3068\u308a\u307e\u3059\u3002<\/p>\n<p>\u300c<strong>unsigned char<\/strong>\u300d\u578b\u306e\u5909\u6570\u306f<strong>0~255<\/strong>\u306e\u5024\u3092\u3068\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u7bc4\u56f2\u4ee5\u5916\u306e\u5024\u3092\u4ee3\u5165\u3059\u308b\u3068\u610f\u56f3\u3057\u306a\u3044\u5024\u3067\u6271\u308f\u308c\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002char\u578b\u306e\u5909\u6570\u306e\u30b5\u30a4\u30ba\u306f1\u30d0\u30a4\u30c8\u3067\u3059\u3002\u3061\u306a\u307f\u306b\u65e5\u672c\u8a9e\u306e\u5168\u89d2\u6587\u5b57\u306f2\u30d0\u30a4\u30c8\u4ee5\u4e0a\u306e\u6587\u5b57\u3068\u306a\u308a\u307e\u3059\u306e\u3067\u3001char\u578b\u306e\u5909\u6570\u306b\u306f\u683c\u7d0d\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306fchar\u578b\u306e\u5024\u306e\u7bc4\u56f2\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u3001\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u300c<strong>limits.h<\/strong>\u300d\u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"lang:c decode:true \">#include &lt;stdio.h&gt;\r\n#include &lt;limits.h&gt;\r\n \r\nint main(void) {\r\n    char chr1 = 'a'; \/\/ \u5ba3\u8a00\u3068\u521d\u671f\u5316\r\n    \/\/ char\u578b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306fc\r\n    printf(\"char1\u306e\u6587\u5b57\u306f: %c\\n\", chr1);\r\n    \/\/ char\u578b\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u8868\u793a\r\n    printf(\"char1\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u306f: %d\\n\", chr1);\r\n    \r\n    \/\/ \u6587\u5b57\u30b3\u30fc\u30c9\u306e\u8868\u793a\r\n    for(char c = 'a'; c &lt; 'd'; c++) {\r\n        printf(\"%c: %d\\n\", c, c);\r\n    }\r\n    \r\n    \/* \u65e5\u672c\u8a9e\u306e\u5168\u89d2\u6587\u5b57\u306f2\u30d0\u30a4\u30c8\u4ee5\u4e0a\u306e\u6587\u5b57\u3067char\u578b\u3068\u306f\u306a\u3089\u306a\u3044\r\n     * warning: multi-character character constant\r\n    char chr2 = '\u3042';\r\n    *\/\r\n \r\n    \/\/ (signed)char\u578b\u3001unsigned char\u578b\u306e\u30b5\u30a4\u30ba\u304a\u3088\u3073\u6700\u5c0f\u5024\u3001\u6700\u5927\u5024    \r\n    printf(\"char\u578b\u306e\u30d0\u30a4\u30c8\u6570\u306f%ld\u30d0\u30a4\u30c8\\n\", sizeof(chr1));\r\n    printf(\"signed char\u306e\u6700\u5c0f\u5024: %d\\n\", CHAR_MIN);  \r\n    printf(\"signed char\u306e\u6700\u5927\u5024: %d\\n\", CHAR_MAX);\r\n    printf(\"unsigned char\u306e\u6700\u5c0f\u5024: %d\\n\", 0);  \r\n    printf(\"unsigned char\u306e\u6700\u5927\u5024: %d\\n\", UCHAR_MAX);\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 \">char1\u306e\u6587\u5b57\u306f: a\r\nchar1\u306e\u6587\u5b57\u30b3\u30fc\u30c9\u306f: 97\r\na: 97\r\nb: 98\r\nc: 99\r\nchar\u578b\u306e\u30d0\u30a4\u30c8\u6570\u306f1\u30d0\u30a4\u30c8\r\nsigned char\u306e\u6700\u5c0f\u5024: -128\r\nsigned char\u306e\u6700\u5927\u5024: 127\r\nunsigned char\u306e\u6700\u5c0f\u5024: 0\r\nunsigned char\u306e\u6700\u5927\u5024:  255<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306fchar\u578b\u306e\u5909\u6570\u300cchr1\u300d\u3092\u5ba3\u8a00\u521d\u671f\u5316\u3057\u3001\u5909\u63db\u6307\u5b9a\u5b50\u300cc\u300d\u3092\u4f7f\u3063\u3066\u51fa\u529b\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305fint\u578b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u300cd\u300d\u3092\u4f7f\u3063\u3066ASCII\u30b3\u30fc\u30c9\u3067\u3082\u51fa\u529b\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6587\u5b57\u300ca\u300d~\u300cc\u300d\u306eASCII\u30b3\u30fc\u30c9\u3092for\u6587\u3092\u4f7f\u3063\u3066\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u300c<span style=\"color: #339966;\"><strong>limits.h<\/strong><\/span>\u300d\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308bchar\u578b\u306e\u30b5\u30a4\u30ba\u3084\u5024\u306e\u7bc4\u56f2\u3092\u8868\u793a\u3057\u3066\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u6587\u5b57\u5217(char\u914d\u5217)\u306e\u4f7f\u3044\u65b9<\/h2>\n<p>char\u578b\u306e\u914d\u5217\u306f\u6587\u5b57\u5217\u3068\u3057\u3066\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6570\u5024\u306e\u914d\u5217\u3068\u540c\u3058\u3088\u3046\u306b\u914d\u5217\u540d\u306e\u3042\u3068\u306b\u300c<strong>[ ]<\/strong>\u300d\u8a18\u53f7\u3092\u4f7f\u3063\u3066\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3057\u5ba3\u8a00\u3059\u308b\u65b9\u6cd5\u3068\u3001<span style=\"color: #339966;\"><strong>\u30dd\u30a4\u30f3\u30bf<\/strong><\/span>\u3092\u4f7f\u3063\u3066\u5ba3\u8a00\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h3>\n<p>\u6570\u5024\u306e\u914d\u5217\u3068\u540c\u3058\u3088\u3046\u306b\u914d\u5217\u540d\u306e\u3042\u3068\u306b\u300c<strong>[ ]<\/strong>\u300d\u8a18\u53f7\u3092\u4f7f\u3063\u3066\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3057\u5ba3\u8a00\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u914d\u5217\u3092\u4f7f\u3063\u305f\u6587\u5b57\u5217\u306e\u5ba3\u8a00\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">char \u914d\u5217\u540d[\u6587\u5b57\u5217\u30b5\u30a4\u30ba];<\/pre>\n<p>\u5ba3\u8a00\u3068\u540c\u6642\u306b\u521d\u671f\u5316\u3082\u884c\u3046\u5834\u5408\u306f\u4ee3\u5165\u3059\u308b\u6587\u5b57\u5217\u3092\u300c<strong>\u201d \u201d<\/strong>\u300d(\u30c0\u30d6\u30eb\u30af\u30aa\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30de\u30fc\u30af)\u3067\u56f2\u307f\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<p>\u5ba3\u8a00\u3068\u521d\u671f\u5316\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true\">char \u914d\u5217\u540d[\u6587\u5b57\u5217\u30b5\u30a4\u30ba] = \u201c\u6587\u5b57\u5217\u201d;<\/pre>\n<p>\u3053\u306e\u5834\u5408\u3001<strong>\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u306e\u8a18\u8ff0\u3092\u7701\u7565<\/strong>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7701\u7565\u3057\u305f\u5834\u5408\u3001<strong>\u6587\u5b57\u5217\u306e\u9577\u3055\u306b1\u52a0\u3048\u305f\u5024<\/strong>\u3067\u30b5\u30a4\u30ba\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u6587\u5b57\u5217\u306e\u6700\u5f8c\u306e\u6587\u5b57\u306e\u3042\u3068\u306b\u7d42\u7aef\u6587\u5b57\u300c<strong>\\0<\/strong>\u300d(NULL)\u3092\u5165\u308c\u308b\u6c7a\u307e\u308a\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002\u914d\u5217\u306e\u521d\u671f\u5316\u3068\u540c\u3058\u3088\u3046\u306b1\u6587\u5b57\u305a\u3064\u8981\u7d20\u3092\u300c<strong>,<\/strong>\u300d\u30ab\u30f3\u30de\u3067\u533a\u5207\u308a\u3001\u5168\u8981\u7d20\u3092\u300c<strong>{ }<\/strong>\u300d\u8a18\u53f7\u3067\u56f2\u3080\u4e0b\u8a18\u306e\u3088\u3046\u306a\u8a18\u8ff0\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u5ba3\u8a00\u3068\u521d\u671f\u5316\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">char \u914d\u5217\u540d[\u6587\u5b57\u5217\u30b5\u30a4\u30ba] = {\u2018\u6587\u5b57[0]\u2019, \u2018\u6587\u5b57[1]\u2019, \u30fb\u30fb\u30fb};<\/pre>\n<p>\u3053\u306e\u5834\u5408\u3082\u3001<strong>\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u306e\u8a18\u8ff0\u3092\u7701\u7565<\/strong>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7701\u7565\u3057\u305f\u5834\u5408\u540c\u3058\u3088\u3046\u306b<strong>\u6587\u5b57\u5217\u306e\u9577\u3055\u306b1\u52a0\u3048\u305f\u5024<\/strong>\u3067\u30b5\u30a4\u30ba\u304c\u6c7a\u307e\u308a\u3001\u6587\u5b57\u5217\u306e\u6700\u5f8c\u306e\u6587\u5b57\u306e\u3042\u3068\u306b\u7d42\u7aef\u6587\u5b57\u300c<strong>\\0<\/strong>\u300d(NULL)\u304c\u5165\u308a\u307e\u3059\u3002<strong>printf<\/strong>\u95a2\u6570\u306a\u3069\u3092\u4f7f\u3063\u3066\u51fa\u529b\u8868\u793a\u3059\u308b\u969b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306f\u300c<span style=\"color: #339966;\"><strong>s<\/strong><\/span>\u300d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\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\"; \/\/ \u5ba3\u8a00\u3068\u521d\u671f\u5316\r\n    \/\/ \u6587\u5b57\u5217\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306fs\r\n    printf(\"str1\u306e\u6587\u5b57\u5217\u306f: %s\\n\", str1);\r\n    \r\n    \/\/ 1\u6587\u5b57\u305a\u3064\u8868\u793a\r\n    for(int i = 0; i &lt; sizeof(str1); i++) {\r\n        printf(\"%d\u756a\u76ee\u306e\u6587\u5b57\u306f%c\\n\", i + 1, str1[i]);\r\n    }\r\n \r\n    char str2[] = {'H', 'e', 'l', 'l', 'o', '\\0'};\r\n    printf(\"str2\u306e\u6587\u5b57\u5217\u306f: %s\\n\", str2);\r\n\r\n    \/\/ 1\u6587\u5b57\u305a\u3064\u8868\u793a\r\n    for(int i = 0; i &lt; sizeof(str2); i++) {\r\n        printf(\"%d\u756a\u76ee\u306e\u6587\u5b57\u306f%c\\n\", i + 1, str2[i]);\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 \">str1\u306e\u6587\u5b57\u5217\u306f: Hello\r\n1\u756a\u76ee\u306e\u6587\u5b57\u306fH\r\n2\u756a\u76ee\u306e\u6587\u5b57\u306fe\r\n3\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n4\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n5\u756a\u76ee\u306e\u6587\u5b57\u306fo\r\n6\u756a\u76ee\u306e\u6587\u5b57\u306f\r\nstr2\u306e\u6587\u5b57\u5217\u306f: Hello\r\n1\u756a\u76ee\u306e\u6587\u5b57\u306fH\r\n2\u756a\u76ee\u306e\u6587\u5b57\u306fe\r\n3\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n4\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n5\u756a\u76ee\u306e\u6587\u5b57\u306fo\r\n6\u756a\u76ee\u306e\u6587\u5b57\u306f<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u6587\u5b57\u5217\u300cstr1\u300d\u3092\u5ba3\u8a00\u3001\u521d\u671f\u5316\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6587\u5b57\u5217\u300cstr1\u300d\u306e\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u3092<span style=\"color: #339966;\"><strong>sizeof<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u3063\u3066\u8a08\u7b97\u3057\u3001for\u6587\u3092\u4f7f\u3063\u30661\u6587\u5b57\u305a\u3064\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u51fa\u529b\u8868\u793a\u3092\u78ba\u8a8d\u3059\u308b\u30685\u6587\u5b57\u306e\u6587\u5b57\u5217\u300cHello\u300d\u306b\u5bfe\u3057\u3066\u300c6\u756a\u76ee\u306e\u6587\u5b57\u306f\u300d\u3068\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f6\u756a\u76ee\u306e\u6587\u5b57\u306f\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u6587\u5b57\u5217\u306e\u6700\u5f8c\u306e\u6587\u5b57\u300co\u300d\u306e\u3042\u3068\u306b\u7d42\u7aef\u6587\u5b57\u300c<strong>\\0<\/strong>\u300d(NULL)\u304c\u5165\u3063\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u6587\u5b57\u5217\u3092\u300c<strong>\u201d \u201d<\/strong>\u300d(\u30c0\u30d6\u30eb\u30af\u30aa\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30de\u30fc\u30af)\u3067\u56f2\u3093\u3067\u521d\u671f\u5316\u3057\u305f\u5834\u5408\u3082\u3001\u300c<strong>{ }<\/strong>\u300d\u8a18\u53f7\u3067\u56f2\u3093\u3067\u521d\u671f\u5316\u3057\u305f\u5834\u5408\u3082\u3001\u6700\u5f8c\u306e\u6587\u5b57\u306e\u3042\u3068\u306b\u7d42\u7aef\u6587\u5b57\u300c<strong>\\0<\/strong>\u300d(NULL)\u304c\u5165\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30dd\u30a4\u30f3\u30bf\u306e\u4f7f\u3044\u65b9<\/h3>\n<p>char\u578b\u306e<span style=\"color: #339966;\"><strong>\u30dd\u30a4\u30f3\u30bf<\/strong><\/span>\u3092\u4f7f\u3063\u3066\u5ba3\u8a00\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u3063\u305f\u5ba3\u8a00\u306e\u4f8b\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">char *(\u30dd\u30a4\u30f3\u30bf\u540d) = \u201c\u6587\u5b57\u5217\u201d;<\/pre>\n<p>\u3053\u306e\u5834\u5408\u3082\u3001\u6587\u5b57\u5217\u306e\u6700\u5f8c\u306e\u6587\u5b57\u306e\u3042\u3068\u306b\u7d42\u7aef\u6587\u5b57\u300c<strong>\\0<\/strong>\u300d(NULL)\u304c\u5165\u308a\u307e\u3059\u3002<span style=\"color: #339966;\"><strong>printf<\/strong><\/span>\u95a2\u6570\u306a\u3069\u3092\u4f7f\u3063\u3066\u51fa\u529b\u8868\u793a\u3059\u308b\u969b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306f\u540c\u3058\u3088\u3046\u306b\u300c<span style=\"color: #339966;\"><strong>s<\/strong><\/span>\u300d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\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 *ptr = \"Hello\"; \/\/ char\u578b\u306e\u30dd\u30a4\u30f3\u30bf\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\r\n    \/\/ \u6587\u5b57\u5217\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306fs\r\n    printf(\"ptr\u306e\u6587\u5b57\u5217\u306f: %s\\n\", ptr);\r\n    \r\n    \/\/ 1\u6587\u5b57\u305a\u3064\u8868\u793a (\u3042\u3068\u3067\u8aac\u660e\u3057\u307e\u3059\u304c\u3001\u3053\u306e\u90e8\u5206\u306f\u3088\u304f\u306a\u3044\u4f8b\u3067\u3059)\r\n    for(int i = 0; i &lt; sizeof(ptr); i++) {\r\n        printf(\"%d\u756a\u76ee\u306e\u6587\u5b57\u306f%c\\n\", i + 1, ptr[i]);\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 \">ptr\u306e\u6587\u5b57\u5217\u306f: Hello\r\n1\u756a\u76ee\u306e\u6587\u5b57\u306fH\r\n2\u756a\u76ee\u306e\u6587\u5b57\u306fe\r\n3\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n4\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n5\u756a\u76ee\u306e\u6587\u5b57\u306fo\r\n6\u756a\u76ee\u306e\u6587\u5b57\u306f\r\n7\u756a\u76ee\u306e\u6587\u5b57\u306fp\r\n8\u756a\u76ee\u306e\u6587\u5b57\u306ft<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306fchar\u578b\u306e\u30dd\u30a4\u30f3\u30bf\u300cptr\u300d\u3092\u5ba3\u8a00\u3001\u521d\u671f\u5316\u3057\u3066\u3044\u307e\u3059\u3002\u30dd\u30a4\u30f3\u30bf\u300cptr\u300d\u306e\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u3092<span style=\"color: #339966;\"><strong>sizeof<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u3063\u3066\u8a08\u7b97\u3057\u3001for\u6587\u3092\u4f7f\u3063\u30661\u6587\u5b57\u305a\u3064\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u5b9f\u884c\u7d50\u679c\u306e\u8868\u793a\u304c\u304a\u304b\u3057\u3044\u3067\u3059\u306d\u2026\u2026\u3002<\/p>\n<p>\u5b9f\u306f\u3001\u30dd\u30a4\u30f3\u30bf\u3092sizeof\u306b\u6e21\u3057\u305f\u5834\u5408\u3001\u3042\u304f\u307e\u3067\u305d\u306e<strong>\u30dd\u30a4\u30f3\u30bf\u578b\u306e\u30b5\u30a4\u30ba\u3057\u304b\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044<\/strong>\u306e\u3067\u3059\u3002\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3067\u304d\u308b\u8a33\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066for\u6587\u3092\u4f7f\u3063\u30661\u6587\u5b57\u305a\u3064\u8868\u793a\u3059\u308b\u306b\u306f\u3001\u5225\u306e\u65b9\u6cd5\u3067\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u3092\u7b97\u51fa\u3059\u308b\u306e\u304c\u9069\u3057\u305f\u65b9\u6cd5\u306b\u306a\u308a\u307e\u3059\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002\u5225\u306e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u5f8c\u8ff0\u3057\u307e\u3059\uff01<\/p>\n<h2>\u6587\u5b57\u5217\u3092\u6271\u3046\u95a2\u6570\u306b\u3064\u3044\u3066<\/h2>\n<p>C\u8a00\u8a9e\u306b\u306f<strong>strlen<\/strong>\u3001<strong>strcpy<\/strong>\u3001<strong>strncpy<\/strong>\u3001<strong>strcat<\/strong>\u3001<strong>strcmp<\/strong>\u306a\u3069\u306e\u6587\u5b57\u5217\u3092\u6271\u3046\u95a2\u6570\u304c\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u95a2\u6570\u3092\u4f7f\u3046\u969b\u306b\u306f\u30d8\u30c3\u30c0\u30fc\u30d5\u30a1\u30a4\u30eb\u300c<span style=\"color: #339966;\"><strong>string.h<\/strong><\/span>\u300d\u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u3092\u307f\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<h3>strlen\u3067\u6587\u5b57\u5217\u9577\u3055\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/h3>\n<p><strong>strlen<\/strong>\u95a2\u6570\u306f\u7b2c1\u5f15\u6570\u306b\u8a18\u8ff0\u3057\u305f\u6587\u5b57\u5217\u306e\u6587\u5b57\u5217\u9577\u3055\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u53d6\u5f97\u3059\u308b\u5024\u306f\u7d42\u7aef\u6587\u5b57\u3092\u9664\u3044\u305f\u6587\u5b57\u5217\u9577\u3055\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/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 *ptr; \/\/ char\u578b\u306e\u30dd\u30a4\u30f3\u30bf\u306e\u5ba3\u8a00\r\n    ptr = \"Hello\"; \/\/ \u30dd\u30a4\u30f3\u30bf\u306e\u521d\u671f\u5316\r\n    \/\/ \u6587\u5b57\u5217\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306fs\r\n    printf(\"ptr\u306e\u6587\u5b57\u5217\u306f: %s\\n\", ptr);\r\n    \r\n    \/\/ 1\u6587\u5b57\u305a\u3064\u8868\u793a\r\n    for(int i = 0; i &lt; sizeof(ptr); i++) {\r\n        printf(\"%d\u756a\u76ee\u306e\u6587\u5b57\u306f%c\\n\", i + 1, ptr[i]);\r\n    }\r\n    \r\n    \/\/ \u6587\u5b57\u5217\u9577\u3055\u306e\u5206\u3060\u3051\u7e70\u308a\u8fd4\u3059\r\n    for(int i = 0; i &lt; strlen(ptr); i++) {\r\n        printf(\"%d\u756a\u76ee\u306e\u6587\u5b57\u306f%c\\n\", i + 1, ptr[i]);\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 \">ptr\u306e\u6587\u5b57\u5217\u306f: Hello\r\n1\u756a\u76ee\u306e\u6587\u5b57\u306fH\r\n2\u756a\u76ee\u306e\u6587\u5b57\u306fe\r\n3\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n4\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n5\u756a\u76ee\u306e\u6587\u5b57\u306fo\r\n6\u756a\u76ee\u306e\u6587\u5b57\u306f\r\n7\u756a\u76ee\u306e\u6587\u5b57\u306fp\r\n8\u756a\u76ee\u306e\u6587\u5b57\u306ft\r\n1\u756a\u76ee\u306e\u6587\u5b57\u306fH\r\n2\u756a\u76ee\u306e\u6587\u5b57\u306fe\r\n3\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n4\u756a\u76ee\u306e\u6587\u5b57\u306fl\r\n5\u756a\u76ee\u306e\u6587\u5b57\u306fo<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u524d\u8ff0\u306e\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u3063\u305f\u65b9\u6cd5\u306e\u30b3\u30fc\u30c9\u306b\u3001\u4fee\u6b63\u3092\u8ffd\u8a18\u3057\u3066\u3044\u307e\u3059\u3002<span style=\"color: #339966;\"><strong>strlen<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u3063\u3066\u7d42\u7aef\u6587\u5b57\u3092\u9664\u3044\u305f\u6587\u5b57\u5217\u9577\u3055\u306e\u5206\u3060\u3051for\u6587\u3067\u7e70\u308a\u8fd4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>strcpy\u3001strncpy\u3067\u6587\u5b57\u5217\u3092\u30b3\u30d4\u30fc\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>\u6587\u5b57\u5217\u306f\u6570\u5024\u306e\u914d\u5217\u3068\u540c\u3058\u3088\u3046\u306b\u300c=\u300d\u8a18\u53f7\u3067\u4ee3\u5165\u3057\u3066\u30b3\u30d4\u30fc\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u6587\u5b57\u5217\u3092\u30b3\u30d4\u30fc\u3057\u305f\u3044\u5834\u5408\u306f<span style=\"color: #339966;\"><strong>strcpy<\/strong><\/span>\u3082\u3057\u304f\u306f<span style=\"color: #339966;\"><strong>strncpy<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059<strong>strncpy<\/strong>\u95a2\u6570\u306f\u30b3\u30d4\u30fc\u5143\u306e\u6587\u5b57\u5217\u306e<strong>\u5148\u982d\u304b\u3089\u6587\u5b57\u6570\u3092\u6307\u5b9a\u3057\u3066\u30b3\u30d4\u30fc<\/strong>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/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[16] = \"Hello World!\";\r\n    char str2[16], str3[16];\r\n    \r\n    \/* \u914d\u5217\u306e\u4ee3\u5165\u306f\u4e0d\u53ef\r\n    str2 = str1;\r\n    *\/\r\n    \r\n    \/\/ \u6587\u5b57\u5217\u306e\u30b3\u30d4\u30fc\r\n    strcpy(str2, str1);\r\n    printf(\"str2\u306e\u6587\u5b57\u5217\u306f: %s\\n\", str2);\r\n    \r\n    \/\/ \u6307\u5b9a\u6587\u5b57\u6570\u5206\u306e\u6587\u5b57\u5217\u306e\u30b3\u30d4\u30fc\r\n    strncpy(str3, str1, 5);\r\n    printf(\"str3\u306e\u6587\u5b57\u5217\u306f: %s\\n\", 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 \">str2\u306e\u6587\u5b57\u5217\u306f: Hello World!\r\nstr3\u306e\u6587\u5b57\u5217\u306f: Hello<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u6587\u5b57\u5217\u300cstr1\u300d\u306e\u5024\u3092\u6587\u5b57\u5217\u300cstr2\u300d\u3001\u300cstr3\u300d\u306b\u30b3\u30d4\u30fc\u3057\u3066\u3044\u307e\u3059\u3002\u6587\u5b57\u5217\u300cstr2\u300d\u306b\u306f\u300cstr1\u300d\u3068\u540c\u3058\u6587\u5b57\u5217\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6587\u5b57\u5217\u300cstr3\u300d\u306b\u306f\u300cstr1\u300d\u306e\u5148\u982d\u304b\u30895\u6587\u5b57\u3092\u30b3\u30d4\u30fc\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>strcat\u3067\u6587\u5b57\u5217\u3092\u9023\u7d50\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>strcat\u95a2\u6570\u3092\u4f7f\u3063\u3066\u6587\u5b57\u5217\u3092\u9023\u7d50\u3057\u307e\u3059\u3002strcat\u95a2\u6570\u306e\u7b2c1\u5f15\u6570\u306e\u6587\u5b57\u5217\u306e\u5f8c\u306b\u7b2c2\u5f15\u6570\u306e\u6587\u5b57\u5217\u3092\u3064\u306a\u3052\u3066\u30dd\u30a4\u30f3\u30bf\u3067\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/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[8] = \"Hello \";\r\n    char str2[8] = \"World!\";\r\n    char *str3;\r\n    \r\n    \/\/ \u6587\u5b57\u5217\u306e\u9023\u7d50\r\n    str3 = strcat(str1, str2);\r\n    printf(\"str3\u306e\u6587\u5b57\u5217\u306f: %s\\n\", 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 \">str3\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\u306e\u3042\u3068\u306b\u300cstr2\u300d\u3092\u3064\u306a\u3052\u3066\u30dd\u30a4\u30f3\u30bf\u300cstr3\u300d\u306b\u8fd4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>strcmp\u3067\u6587\u5b57\u5217\u3092\u6bd4\u8f03\u3059\u308b\u65b9\u6cd5<\/h3>\n<p><span style=\"color: #339966;\"><strong>strcmp<\/strong><\/span>\u95a2\u6570\u3092\u4f7f\u3063\u3066<strong>\u6587\u5b57\u5217\u540c\u58eb\u304c\u540c\u3058\u304b\u5426\u304b\u6bd4\u8f03<\/strong>\u3057\u307e\u3059\u3002\u6570\u5024\u540c\u58eb\u306e\u6bd4\u8f03\u306f\u300c==\u300d\u8a18\u53f7\u3092\u4f7f\u3044\u307e\u3059\u304c\u3001\u6587\u5b57\u5217(Char\u578b\u914d\u5217)\u3067\u300c==\u300d\u8a18\u53f7\u3092\u4f7f\u3046\u3068\u30a2\u30c9\u30ec\u30b9\u304c\u540c\u3058\u304b\u5426\u304b\u306e\u6bd4\u8f03\u3068\u306a\u308b\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002(\u307e\u305f\u3053\u306e\u969b\u3001\u52d5\u4f5c\u306b\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u304c\u3001\u74b0\u5883\u306b\u3088\u3063\u3066\u306f\u8b66\u544a\u304c\u51fa\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059)<\/p>\n<p>\u305d\u308c\u3067\u306f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/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[16] = \"Hello World!\";\r\n    char str2[16] = \"Hello World!\";\r\n    char str3[16] = \"Hello\";\r\n    \r\n    \/\/ \u30a2\u30c9\u30ec\u30b9\u306e\u6bd4\u8f03\r\n    if(str1 == str2) {\r\n        printf(\"%s \u3068 %s \u306f\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n\", str1, str2);\r\n    } else {\r\n        printf(\"%s \u3068 %s \u306f\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n\", str1, str2);\r\n    }\r\n    \r\n    \/\/ \u6587\u5b57\u5217\u306e\u6bd4\u8f03\r\n    if(strcmp(str1, str2) == 0) {\r\n        printf(\"%s \u3068 %s \u306f\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n\", str1, str2);\r\n    } else {\r\n        printf(\"%s \u3068 %s \u306f\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n\", str1, str2);\r\n    }\r\n    \r\n    if(strcmp(str1, str3) == 0) {\r\n        printf(\"%s \u3068 %s \u306f\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n\", str1, str3);\r\n    } else {\r\n        printf(\"%s \u3068 %s \u306f\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n\", str1, str3);\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 World! \u3068 Hello World! \u306f\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\r\nHello World! \u3068 Hello World! \u306f\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\r\nHello World! \u3068 Hello \u306f\u9055\u3046\u6587\u5b57\u5217\u3067\u3059<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u6587\u5b57\u5217\u300cstr1\u300d\u3068\u300cstr2\u300d\u3001\u300cstr3\u300d\u3092\u6bd4\u8f03\u3057\u3066\u3044\u307e\u3059\u3002\u300c==\u300d\u8a18\u53f7\u3092\u4f7f\u3046\u3068\u3001\u540c\u3058\u300cHello World!\u300d\u306e\u6587\u5b57\u3067\u3059\u304c<span style=\"color: #339966;\"><strong>false<\/strong><\/span>\u3068\u5224\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u30a2\u30c9\u30ec\u30b9\u3092\u6bd4\u8f03\u3057\u3066\u30a2\u30c9\u30ec\u30b9\u5148\u304c\u9055\u3046\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>strcmp\u95a2\u6570\u3092\u4f7f\u3046\u3068\u6587\u5b57\u304c\u540c\u3058\u304b\u5426\u304b\u5224\u5b9a\u3067\u304d\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3053\u3053\u3067\u306f\u3001char\u578b\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3057\u305f\u3002char\u578b\u306e<strong>\u914d\u5217\u3068\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u3063\u3066\u6587\u5b57\u5217\u3092\u6271\u3046<\/strong>\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>string.h\u306e\u95a2\u6570\u7fa4\u3068\u3042\u308f\u305b\u3066\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>\u3042\u306a\u305f\u306fchar\u578b\u3092\u4f7f\u3063\u3066\u307e\u3059\u304b\uff1f char\u578b\u306f\u6587\u5b57\u30fb\u6587\u5b57\u5217\u3084\u753b\u50cf\u3092256\u968e\u8abf\u3067\u8868\u3059\u5834\u5408\u306b\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002\u7279\u306b\u6587\u5b57\u5217\u306f\u914d\u5217\u3084\u30dd\u30a4\u30f3\u30bf\u3067\u6271\u3046\u306e\u3067\u8907\u96d1\u306b\u611f\u3058\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001char\u578b\u306b\u3064\u3044\u3066\u300c\u6587\u5b57(char [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":92968,"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-25592","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 v27.8 - 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max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sejuku.net\/blog\/25592\" \/>\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\u30fb\u6587\u5b57\u5217(char)\u306e\u4f7f\u3044\u65b9 | \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\u30fb\u6587\u5b57\u5217(char)\u306e\u4f7f\u3044\u65b9 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