#include <stdio.h>\n\nint main(void) {\n\n char *str = "sample";\n\n if('s' == str[0]){\n printf("1\u6587\u5b57\u76ee\u306fs\u3067\u3059\\n");\n }else{\n printf("1\u6587\u5b57\u76ee\u306fs\u3067\u306f\u3042\u308a\u307e\u305b\u3093\\n");\n }\n\n if('s' == str[1]){\n printf("2\u6587\u5b57\u76ee\u306fs\u3067\u3059\\n");\n }else{\n printf("2\u6587\u5b57\u76ee\u306fs\u3067\u306f\u3042\u308a\u307e\u305b\u3093\\n");\n }\n\n return 0;\n}<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n1\u6587\u5b57\u76ee\u306fs\u3067\u3059\n2\u6587\u5b57\u76ee\u306fs\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/code><\/pre><\/div>\n\n\n\n\u6b63\u5e38\u306b\u6587\u5b57\u306e\u6bd4\u8f03\u304c\u884c\u3048\u3066\u3044\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n
\u306a\u304a\u3001\u4f59\u8ac7\u3067\u3059\u304c\u3001C\u8a00\u8a9e\u306b\u9650\u3089\u305a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u306f\u3001\u6587\u5b57\u30b3\u30fc\u30c9\u3068\u547c\u3070\u308c\u308b\u8868\u73fe\u65b9\u6cd5\u3067\u5185\u90e8\u7684\u306b\u6587\u5b57\u304c\u53d6\u308a\u6271\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u6587\u5b57\u30b3\u30fc\u30c9\u3068\u306f\u3001\u6587\u5b57\u3054\u3068\u306b\uff11\u5bfe\uff11\u3067\u5272\u308a\u632f\u3089\u308c\u305f\u756a\u53f7\u306e\u3053\u3068\u3067\u3001\u6587\u5b57\u306e\u6bd4\u8f03\u3082\u3053\u306e\u756a\u53f7\u3092\u4f7f\u7528\u3057\u3066\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n#include <stdio.h>\n\nint main(void) {\n\n char a = 'a';\n char A = 'A';\n\n printf("\u6587\u5b57\u30b3\u30fc\u30c9\uff1a%d\\n", a);\n printf("\u6587\u5b57\u30b3\u30fc\u30c9\uff1a%d\\n", A);\n\n return 0;\n}<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n\u6587\u5b57\u30b3\u30fc\u30c9\uff1a97\n\u6587\u5b57\u30b3\u30fc\u30c9\uff1a65<\/code><\/pre><\/div>\n\n\n\n\u7d50\u679c\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u6570\u5024\u304c\u3001\u4e0a\u8ff0\u3057\u305f\u6587\u5b57\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n
\u3053\u306e\u6570\u5024\u3092\u5143\u306b\u3001\u540c\u3058\u6587\u5b57\u540c\u58eb\u3067\u3042\u308b\u304b\u306e\u78ba\u8a8d\u3092\u884c\u3063\u305f\u308a\u3001strcmp\u95a2\u6570\u3067\u306f\u5024\u306e\u5927\u5c0f\u306e\u6bd4\u8f03\u306b\u3082\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
strcmp\u3067\u6587\u5b57\u5217\u3092\u6bd4\u8f03\u3059\u308b<\/h2>\n\n\n\n
\u3053\u3053\u304b\u3089\u3001strcmp\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u57fa\u672c\u69cb\u6587\u3068\u4f7f\u3044\u65b9<\/h3>\n\n\n\n
\u307e\u305a\u306f\u3001strcmp\u95a2\u6570\u306e\u57fa\u672c\u69cb\u6587\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002
strcmp\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u69cb\u6587\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\nstrcmp(\u6587\u5b57\u52171, \u6587\u5b57\u52172);<\/code><\/pre><\/div>\n\n\n\n\u7b2c1\u5f15\u6570\u3068\u7b2c2\u5f15\u6570\u306b\u306f\u3001\u305d\u308c\u305e\u308c\u6bd4\u8f03\u3057\u305f\u3044 char\u578b\u306e\u914d\u5217 (\u6587\u5b57\u5217) \u306e\u914d\u5217\u540d\u3001\u3082\u3057\u304f\u306f\u914d\u5217\u306e\u5148\u982d\u3092\u6307\u3059\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u8a18\u8ff0\u4f8b\u3011<\/strong><\/p>\n\n\n\nstrcmp(str1, str2);\n\/\/ \u3082\u3057\u304f\u306f\nstrcmp(&str1[0], &str2[0]);<\/code><\/pre><\/div>\n\n\n\n\u30dd\u30a4\u30f3\u30bf\u3092\u5f15\u6570\u306b\u6e21\u3059\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3001\u914d\u5217\u306e\u5148\u982d\u30a2\u30c9\u30ec\u30b9\u3092\u6e21\u3059\u5834\u5408\u306f\u3001\uff06\u6f14\u7b97\u5b50\u3092\u3064\u3051\u5fd8\u308c\u306a\u3044\u3088\u3046\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u95a2\u6570\u306e\u8fd4\u308a\u5024\u306f\u3001\u6587\u5b57\u5217\u304c\u5168\u3066\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u5426\u304b\u3068\u3001\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u306b\u6587\u5b57\u306e\u5927\u5c0f\u3092\u6bd4\u8f03\u3057\u305f\u7d50\u679c\u304c\u6570\u5024\u3067\u8fd4\u5374\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
\u8fd4\u5374\u3055\u308c\u308b\u5024\u3068\u5bfe\u5fdc\u3059\u308b\u5185\u5bb9\u306f\u3001\u305d\u308c\u305e\u308c\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
\n- \u6587\u5b57\u5217\u304c\u5168\u3066\u4e00\u81f4\u3057\u3066\u3044\u308b\uff1a0<\/li>\n<\/ul>\n\n\n\n
\n- \u7b2c1\u5f15\u6570\u304c\u7b2c2\u5f15\u6570\u3088\u308a\u5c0f\u3055\u3044\uff08\u30bd\u30fc\u30c8\u306e\u6607\u9806\u3067\u5148\u306b\u6765\u308b\u65b9\u3067\u3042\u308b\uff09\uff1a \u8ca0\u306e\u5024
<\/li>\n<\/ul>\n\n\n\n\n- \u7b2c1\u5f15\u6570\u304c\u7b2c2\u5f15\u6570\u3088\u308a\u5927\u304d\u3044\uff08\u30bd\u30fc\u30c8\u306e\u6607\u9806\u3067\u5148\u306b\u6765\u308b\u65b9\u3067\u3042\u308b\uff09\uff1a\u6b63\u306e\u5024
<\/li>\n<\/ul>\n\n\n\n\u57fa\u672c\u7684\u306b\u306f\u3001\u7d50\u679c\u304c0\u304b\u5426\u304b (\u6587\u5b57\u5217\u304c\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b) \u3092\u5224\u65ad\u57fa\u6e96\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002
\u6587\u5b57\u306e\u5927\u5c0f\u3092\u5224\u65ad\u3059\u308b\u5834\u5408\u306f\u3001\u6bd4\u8f03\u3059\u308b\u6587\u5b57\u5217\u306a\u3069\u306b\u3088\u3063\u3066\u5024\u306b\u3070\u3089\u3064\u304d\u304c\u3042\u308b\u305f\u3081\u3001\u6b63\u3068\u8ca0\u306e\u3069\u3061\u3089\u3067\u3042\u308b\u304b\u3092\u57fa\u6e96\u306b\u51e6\u7406\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001strcmp\u95a2\u6570\u306f\u6587\u5b57\u5217\u5168\u4f53\u3092\u6bd4\u8f03\u3059\u308b\u305f\u3081\u306e\u95a2\u6570\u306a\u306e\u3067\u3001\u6587\u5b57\u5217\u306e\u4e00\u90e8\u306e\u307f\u3092\u6307\u5b9a\u3057\u3066\u6bd4\u8f03\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002
\u305d\u306e\u5834\u5408\u306f\u3001\u300cstrncmp\u300d\u3068\u3044\u3046\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u6587\u5b57\u5217\u306e\u6bd4\u8f03\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
strcmp\u95a2\u6570\u3068strncmp\u95a2\u6570\u306e\u3069\u3061\u3089\u3082\u3001\u4f7f\u7528\u306e\u969b\u306b\u306f \u300cstring.h\u300d \u30d5\u30a1\u30a4\u30eb\u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5fd8\u308c\u305a\u306b\u8a18\u8ff0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
\u3010\u30d5\u30a1\u30a4\u30eb\u306e\u5148\u982d\u306b\u8a18\u8ff0\u3011<\/strong><\/p>\n\n\n\n#include <string.h><\/code><\/pre><\/div>\n\n\n\nstrcmp\u95a2\u6570\u306e\u5b9f\u969b\u306e\u4f7f\u3044\u65b9\u3092\u3001\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n#include <stdio.h>\n#include <string.h>\n\nint main(void) {\n \n char *str1 = "sample";\n char *str2 = "sample";\n\n char *str3 = "SAMPLE";\n char *str4 = "samply";\n\n \/\/str1\u3068str2\u3092\u6bd4\u8f03\n if(strcmp(str1, str2) == 0){\n printf("\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n");\n }else{\n printf("\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n");\n }\n\n \/\/str1\u3068str3\u3092\u6bd4\u8f03\n if(strcmp(str1, str3) == 0){\n printf("\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n");\n }else{\n printf("\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n");\n }\n\n \/\/\u7570\u306a\u308b\u6587\u5b57\u5217\u540c\u58eb\u306e\u5927\u5c0f\u306e\u5dee\u3092\u6bd4\u8f03\n printf("%d\\n", strcmp(str1, str3));\n printf("%d\\n", strcmp(str1, str4));\n \n return 0;\n}<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\n\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\n1\n-1<\/code><\/pre><\/div>\n\n\n\n\u6587\u5b57\u5217\u304c\u4e00\u81f4\u3059\u308b\u5834\u5408\u3068\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306e\u9055\u3044\u304c\u3001\u305d\u308c\u305e\u308c\u78ba\u8a8d\u3067\u304d\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u5927\u6587\u5b57\u3068\u5c0f\u6587\u5b57\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u306f\u3001\u7d50\u679c\u3092\u898b\u308b\u3068\u5206\u304b\u308b\u3088\u3046\u306b\u3001\u6587\u5b57\u30b3\u30fc\u30c9\u304c\u5927\u5c0f\u3067\u7570\u306a\u308b\u305f\u3081\u5225\u306e\u6587\u5b57\u5217\u3068\u3057\u3066\u5224\u5b9a\u3055\u308c\u307e\u3059\u3002(\u5927\u6587\u5b57\u306e\u65b9\u304c\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u6570\u5024\u306f\u5c0f\u3055\u304f\u306a\u308a\u307e\u3059)<\/p>\n\n\n\n
\u307e\u305f\u3001\u6587\u5b57\u306e\u5927\u5c0f\u306e\u5dee\u306f\u3001\u6bd4\u8f03\u6642\u306b\u4e00\u756a\u521d\u3081\u306b\u898b\u3064\u3051\u3089\u308c\u305f\u7570\u306a\u308b\u6587\u5b57\u3092\u57fa\u6e96\u306b\u5224\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
\u7bc4\u56f2\u6307\u5b9a\u304c\u3067\u304d\u308bstrncmp\u3067\u6587\u5b57\u5217\u3092\u6bd4\u8f03\u3059\u308b<\/h2>\n\n\n\n
\u4e0a\u8ff0\u3057\u305f\u3088\u3046\u306b\u3001strcmp\u95a2\u6570\u306f\u6587\u5b57\u5217\u5168\u4f53\u306e\u6bd4\u8f03\u306e\u307f\u304c\u53ef\u80fd\u306e\u305f\u3081\u3001\u7bc4\u56f2\u3092\u6307\u5b9a\u3057\u3066\u6bd4\u8f03\u3059\u308b\u5834\u5408\u306f strncmp\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u7d9a\u3044\u3066\u3001strncmp\u95a2\u6570\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u57fa\u672c\u69cb\u6587\u3068\u4f7f\u3044\u65b9<\/h3>\n\n\n\n
\u521d\u3081\u306b\u3001strncmp\u95a2\u6570\u306e\u57fa\u672c\u69cb\u6587\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002
strncmp\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u69cb\u6587\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\nstrncmp(\u6587\u5b57\u52171, \u6587\u5b57\u52172, \u6bd4\u8f03\u3059\u308b\u6587\u5b57\u6570);<\/code><\/pre><\/div>\n\n\n\n\u7b2c1\u5f15\u6570\u3068\u7b2c2\u5f15\u6570\u306f\u3001strcmp\u95a2\u6570\u3068\u540c\u3058\u3088\u3046\u306b\u914d\u5217\u540d\u304b\u5148\u982d\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u7b2c3\u5f15\u6570\u306b\u306f\u3001\u5148\u982d\u304b\u3089\u6570\u3048\u3066\u4f55\u6587\u5b57\u76ee\u307e\u3067\u3092\u6bd4\u8f03\u7bc4\u56f2\u306b\u542b\u3080\u304b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002
\u4f8b\u3048\u3070\u3001\u300cHello\u300d \u3068\u3044\u3046\u6587\u5b57\u5217\u306b\u5bfe\u3057\u3066\uff13\u3068\u6307\u5b9a\u3057\u305f\u5834\u5408\u3001\u300cHel\u300d \u307e\u3067\u304c\u6bd4\u8f03\u5bfe\u8c61\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3001\u5b9f\u969b\u306e\u52d5\u304d\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/p>\n\n\n\n
#include <stdio.h>\n#include <string.h>\n\nint main(void) {\n \n char *str1 = "sample";\n char *str2 = "sample";\n\n char *str3 = "SAMPLE";\n char *str4 = "samply";\n\n \/\/str1\u3068str2\u3092\u6bd4\u8f03\n if(strncmp(str1, str2, 3) == 0){\n printf("\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n");\n }else{\n printf("\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n");\n }\n\n \/\/str1\u3068str3\u3092\u6bd4\u8f03\n if(strncmp(str1, str3, 3) == 0){\n printf("\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n");\n }else{\n printf("\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n");\n }\n\n \/\/str1\u3068str4\u3092\u6bd4\u8f03\n if(strncmp(str1, str4, 3) == 0){\n printf("\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n");\n }else{\n printf("\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n");\n }\n \n return 0;\n}<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\n\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\n\u540c\u3058\u6587\u5b57\u5217\u3067\u3059<\/code><\/pre><\/div>\n\n\n\n\u305d\u308c\u305e\u308c\u306e\u6587\u5b57\u5217\u3092\u3001\u5148\u982d\u304b\u3089\uff13\u6587\u5b57\u5206\u3060\u3051\u6bd4\u8f03\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002
\u6307\u5b9a\u306e\u7bc4\u56f2\u5185\u306e\u307f\u3067\u7d50\u679c\u3092\u5224\u65ad\u3059\u308b\u305f\u3081\u3001\u6587\u5b57\u5217\u3059\u3079\u3066\u304c\u5b8c\u5168\u306b\u4e00\u81f4\u3057\u306a\u3044\u3082\u306e\u3067\u3082\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306b\u540c\u3058\u6587\u5b57\u5217\u3067\u3042\u308b\u3068\u5224\u65ad\u3055\u308c\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u306a\u304a\u3001\u4efb\u610f\u306e\u7b87\u6240\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u5148\u982d\u3068\u3057\u3066\u5f15\u6570\u306b\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u6587\u5b57\u5217\u306e\u9014\u4e2d\u304b\u3089\u6bd4\u8f03\u3092\u958b\u59cb\u3059\u308b\u5fdc\u7528\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n#include <stdio.h>\n#include <string.h>\n\nint main(void) {\n \n char *str1 = "sample";\n char *str2 = "samply";\n\n \/\/\u5f8c\u308d3\u6587\u5b57\u3092\u6bd4\u8f03\n if(strncmp(&str1[3], &str2[3], 3) == 0){\n printf("\u540c\u3058\u6587\u5b57\u5217\u3067\u3059\\n");\n }else{\n printf("\u9055\u3046\u6587\u5b57\u5217\u3067\u3059\\n");\n }\n \n return 0;\n}<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n\u9055\u3046\u6587\u5b57\u5217\u3067\u3059<\/code><\/pre><\/div>\n\n\n\nstrncmp\u30671\u6587\u5b57\u3060\u3051\u3092\u6bd4\u8f03\u3059\u308b<\/h3>\n\n\n\n
\u4e0a\u8ff0\u306e\u5fdc\u7528\u65b9\u6cd5\u3092\u6d3b\u7528\u3057\u3066\u3001strncmp\u95a2\u6570\u3067\u4efb\u610f\u306e\uff11\u6587\u5b57\u3060\u3051\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u52d5\u4f5c\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n#include <stdio.h>\n#include <string.h>\n\nint main(void) {\n \n char *str = "sample";\n\n \/\/\u6587\u5b57\u5217\u5185\u306e\u4e00\u90e8\u3092m\u3068\u6bd4\u8f03\n if(strncmp("m", &str[0], 1) == 0){\n printf("m\u3068\u4e00\u81f4\u3057\u307e\u3057\u305f\\n");\n }else{\n printf("m\u3068\u4e00\u81f4\u3057\u307e\u305b\u3093\u3067\u3057\u305f\\n");\n }\n\n if(strncmp("m", &str[2], 1) == 0){\n printf("m\u3068\u4e00\u81f4\u3057\u307e\u3057\u305f\\n");\n }else{\n printf("m\u3068\u4e00\u81f4\u3057\u307e\u305b\u3093\u3067\u3057\u305f\\n");\n }\n \n return 0;\n}<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\nm\u3068\u4e00\u81f4\u3057\u307e\u305b\u3093\u3067\u3057\u305f\nm\u3068\u4e00\u81f4\u3057\u307e\u3057\u305f<\/code><\/pre><\/div>\n\n\n\n\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u7247\u65b9\u306e\u5f15\u6570\u306b\u6bd4\u8f03\u3057\u305f\u3044\u6587\u5b57\u3092\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3067\u56f2\u3063\u3066\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3068\u3001\u6bd4\u8f03\u3059\u308b\u6587\u5b57\u6570\u3092\uff11\u6587\u5b57\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n
C\u8a00\u8a9e\u3067\u306f\u3001\u6587\u5b57\u30ea\u30c6\u30e9\u30eb\u306e\u5834\u5408\u306f\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3001\u6587\u5b57\u5217\u306e\u5834\u5408\u306f\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3068\u5f79\u5272\u304c\u5206\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002
\u95a2\u6570\u306e\u4ed5\u69d8\u4e0a\u3001\u6587\u5b57\u5217\u3068\u3057\u3066\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u5fc5\u305a\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3067\u56f2\u3046\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
\u307e\u3068\u3081<\/h2>\n\n\n\n
\u4eca\u56de\u306f\u3001C\u8a00\u8a9e\u3067\u6587\u5b57\u5217\u3092\u6bd4\u8f03\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002
\u305d\u308c\u305e\u308c\u306e\u95a2\u6570\u306e\u7279\u5fb4\u3092\u899a\u3048\u3066\u3001\u4e0a\u624b\u304f\u6d3b\u7528\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
C\u8a00\u8a9e\u306e\u52c9\u5f37\u65b9\u6cd5\u306f\uff1f<\/h2>\n\n\n
\u66f8\u7c4d\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u5b66\u7fd2\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u6628\u4eca\u3067\u306f\u3001YouTube\u306a\u3069\u306e\u52d5\u753b\u30b5\u30a4\u30c8\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30b5\u30a4\u30c8\u306a\u3069\u3082\u5145\u5b9f\u3057\u3066\u3044\u3066\u591a\u304f\u306e\u60c5\u5831\u304c\u624b\u306b\u5165\u308a\u307e\u3059\u3002
\u305d\u3057\u3066\u3001\u3088\u308a\u52b9\u7387\u7684\u306b\u77e5\u8b58\u30fb\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3059\u308b\u306b\u306f\u3001\u77e5\u8b58\u3092\u3064\u3051\u306a\u304c\u3089\u5b9f\u969b\u306b\u624b\u3092\u52d5\u304b\u3057\u3066\u307f\u308b\u306a\u3069\u3001\u30a4\u30f3\u30d7\u30c3\u30c8\u3068\u30a2\u30a6\u30c8\u30d7\u30c3\u30c8\u3092\u7e70\u308a\u8fd4\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u7279\u306b\u72ec\u5b66\u306e\u5834\u5408\u306f\u3001\u6709\u8b58\u8005\u306b\u8cea\u554f\u304c\u3067\u304d\u305f\u308a\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u3082\u3089\u3048\u308b\u3088\u3046\u306a\u74b0\u5883\u304c\u3042\u308b\u3068\u3001\u7406\u89e3\u5ea6\u304c\u6df1\u307e\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n
\u305f\u3060\u3001C\u8a00\u8a9e\u306b\u9650\u3089\u305a\u3001IT\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u308b\u969b\u3001\u3069\u3046\u3057\u3066\u3082\u8ab2\u984c\u306b\u3076\u3064\u304b\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u3088\u306d\u3002\u7279\u306b\u72ec\u5b66\u3060\u3068\u3001\u308f\u304b\u3089\u306a\u3044\u90e8\u5206\u3092\u30d7\u30ed\u306b\u8cea\u554f\u3067\u304d\u308b\u6a5f\u4f1a\u3092\u78ba\u4fdd\u3057\u306b\u304f\u304f\u3001\u30e2\u30c1\u30d9\u30fc\u30b7\u30e7\u30f3\u304c\u7d9a\u304d\u306b\u304f\u3044\u3068\u3044\u3046\u5074\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u72ec\u5b66\u3067\u30e2\u30c1\u30d9\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3059\u308b\u81ea\u4fe1\u304c\u306a\u3044\u4eba\u306b\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3068\u3044\u3046\u624b\u3082\u3042\u308a\u307e\u3059\u3002\u8cbb\u7528\u306f\u639b\u304b\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u5206\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u3084\u3059\u3044\u3067\u3059\u3002\u3057\u3063\u304b\u308a\u3068\u77e5\u8b58\u30fb\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3057\u3066\u5b9f\u8df5\u306b\u6d3b\u304b\u3057\u305f\u3044\u3068\u3044\u3046\u4eba\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n
\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u306a\u3089\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u304c\u304a\u3059\u3059\u3081\uff01<\/strong><\/span><\/p>\n\n\n![](\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/yuudou.png\")
\n\n\nIT\u30b9\u30ad\u30eb\u9700\u8981\u306e\u9ad8\u307e\u308a\u3068\u3068\u3082\u306b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3082\u5897\u3048\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3069\u306e\u30b9\u30af\u30fc\u30eb\u306b\u901a\u3046\u3079\u304d\u304b\u8ff7\u3063\u3066\u3057\u307e\u3046\u4eba\u3082\u3044\u308b\u3067\u3057\u3087\u3046\u3002\u305d\u3093\u306a\u65b9\u306b\u306f\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\uff01\u3053\u308c\u307e\u3067\u591a\u304f\u306eIT\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u80b2\u6210\u30fb\u8f29\u51fa\u3057\u3066\u304d\u305f\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u3067\u3082\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3092\u958b\u8b1b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\n\uff1c\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u306e\u7279\u5fb4\uff1e<\/strong>
\u30fb\u305f\u3057\u304b\u306a\u80b2\u6210\u5b9f\u7e3e\u3068\u89aa\u8eab\u306a\u6559\u80b2\u3000\uff5e\u30bb\u30ab\u30f3\u30c9\u30ad\u30e3\u30ea\u30a2\u3092\u5168\u529b\u652f\u63f4\uff5e<\/strong>
\u30fb\u8b1b\u5e2b\u304c\u73fe\u5f79\u30a8\u30f3\u30b8\u30cb\u30a2\u3000\uff5e\u201c\u672c\u5f53\u201d\u306e\u958b\u767a\u30ce\u30a6\u30cf\u30a6\u3092\u76f4\u306b\u5b66\u3079\u308b\uff5e<\/strong>
\u30fb\u5c02\u5c5e\u8b1b\u5e2b\u304c\u5b66\u7fd2\u3092\u5fb9\u5e95\u30b5\u30dd\u30fc\u30c8\u3000\uff5e\u300c\u308f\u304b\u3089\u306a\u3044\u300d\u3092\u5fb9\u5e95\u89e3\u6c7a\uff5e<\/strong>
\u30fb\u5b9f\u52d9\u30d9\u30fc\u30b9\u3067\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3000\uff5e\u5b9f\u8df5\u7684\u306a\u51dd\u7e2e\u30ab\u30ea\u30ad\u30e5\u30e9\u30e0\uff5e<\/strong><\/p>\n<\/div>\n\u3053\u306e\u3088\u3046\u306a\u7279\u5fb4\u3092\u6301\u3064\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u306fIT\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b9\u30bf\u30fc\u30c8\u30e9\u30a4\u30f3\u3068\u3057\u3066\u6700\u9069\u3067\u3059\u3002
\u8a71\u3092\u805e\u304d\u305f\u3044\u30fb\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u3068\u3044\u3046\u65b9\u306f\u3053\u3061\u3089<\/a>\u304b\u3089\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>","protected":false},"excerpt":{"rendered":"C\u8a00\u8a9e\u306b\u306f\u3001\u6587\u5b57\u5217\u306e\u6bd4\u8f03\u306b\u4f7f\u7528\u3067\u304d\u308b \u300cstrcmp\u300d \u3068\u3044\u3046\u95a2\u6570\u304c\u5b58\u5728\u3057\u307e\u3059\u3002 \u4eca\u56de\u306f\u3001strcmp\u95a2\u6570\u3067\u6587\u5b57\u5217\u3092\u6bd4\u8f03\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 C\u8a00\u8a9e\u306estrcmp\u95a2\u6570\u3068\u306f\uff1f strcmp\u95a2\u6570\u306f\u3001\u6587\u5b57\u5217\u306e\u6bd4\u8f03\u306b\u4f7f\u7528\u3067\u304d\u308b\u95a2\u6570\u306e\u5185\u306e\uff11\u3064\u3067\u3059\u30022\u3064\u306e\u6587\u5b57\u5217\u3092\uff11\u6587\u5b57\u305a\u3064\u6bd4\u8f03\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u6574\u6570\u5024\u3068\u3057\u3066\u8fd4\u5374\u3057\u307e\u3059\u3002 \u6587\u5b57\u5217\u5168\u4f53\u304c\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3060\u3051\u3067\u306a\u304f\u3001\u7570\u306a\u308b\u6587\u5b57\u304c\u542b\u307e\u308c\u308b\u5834 […]","protected":false},"author":11,"featured_media":9701,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/clang-strcmp.webp","fifu_image_alt":"\u3010C\u8a00\u8a9e\u5165\u9580\u3011strcmp\u95a2\u6570\u3067\u6587\u5b57\u5217\u3092\u6bd4\u8f03\u3059\u308b","footnotes":""},"categories":[15],"tags":[],"class_list":["post-9699","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programming"],"_links":{"self":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/9699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/comments?post=9699"}],"version-history":[{"count":1,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/9699\/revisions"}],"predecessor-version":[{"id":9700,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/9699\/revisions\/9700"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/media\/9701"}],"wp:attachment":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/media?parent=9699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/categories?post=9699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/tags?post=9699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}