{"id":1641,"date":"2025-02-19T16:26:57","date_gmt":"2025-02-19T07:26:57","guid":{"rendered":"https:\/\/avancesys.co.jp\/laboratory\/?post_type=article&p=1641"},"modified":"2025-02-19T16:26:57","modified_gmt":"2025-02-19T07:26:57","slug":"%e3%82%bf%e3%82%a4%e3%83%88%e3%83%ab%ef%bc%9a%e7%ac%ac6%e5%9b%9e-misra-c-%ef%bd%9e%e9%96%a2%e6%95%b0%e3%81%ae%e5%87%ba%e5%8f%a3%e3%81%ae%e3%83%ab%e3%83%bc%e3%83%ab%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"article","link":"https:\/\/www.avancesys.co.jp\/laboratory\/article\/%e3%82%bf%e3%82%a4%e3%83%88%e3%83%ab%ef%bc%9a%e7%ac%ac6%e5%9b%9e-misra-c-%ef%bd%9e%e9%96%a2%e6%95%b0%e3%81%ae%e5%87%ba%e5%8f%a3%e3%81%ae%e3%83%ab%e3%83%bc%e3%83%ab%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6\/","title":{"rendered":"\u30bf\u30a4\u30c8\u30eb\uff1a\u7b2c6\u56de MISRA-C \uff5e\u95a2\u6570\u306e\u51fa\u53e3\u306e\u30eb\u30fc\u30eb\u306b\u3064\u3044\u3066\u89e3\u8aac\uff5e"},"content":{"rendered":"\n

\u3053\u3093\u306b\u3061\u306fI-R\u3067\u3059\u3002
\u7d44\u307f\u8fbc\u307f\u7cfb\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u6a19\u6e96\u898f\u683c\u3067\u3042\u308bMISRA-C\u306b\u3064\u3044\u3066\u3001
\u5b9f\u969b\u306b\u306f\u3069\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u304c\u9038\u8131\u3068\u3055\u308c\u308b\u306e\u304b\u3001\u3069\u306e\u3088\u3046\u306a\u5bfe\u7b56\u6848\u304c\u3042\u308b\u306e\u304b\u3001\u629c\u7c8b\u3057\u3066\u7d39\u4ecb\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002
\u4eca\u56de\u7d39\u4ecb\u3059\u308b\u30eb\u30fc\u30eb\u306f\u95a2\u6570\u306e\u7d42\u4e86\u90e8\u5206\u306b\u95a2\u3059\u308b\u30eb\u30fc\u30eb\u3068\u306a\u308a\u307e\u3059\u3002
\u95a2\u9023\u6027\u306e\u9ad8\u30442\u3064\u306e\u30eb\u30fc\u30eb\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

1\uff0eMISRA-C:2004\u3000\u30eb\u30fc\u30ebNo.14.7\u306e\u7d39\u4ecb<\/p><\/blockquote><\/figure>\n\n\n\n

1.1\u3000\u30eb\u30fc\u30ebNo.14.7\u306b\u3064\u3044\u3066<\/p>\n\n\n\n

\u30eb\u30fc\u30ebNo.<\/td>14.7<\/td><\/tr>
\u30ab\u30c6\u30b4\u30ea\u30fc<\/td>\u5fc5\u8981<\/td><\/tr>
\u5185\u5bb9<\/td>\u30eb\u30fc\u30eb14.7\u306f\u3001return\u6587\u306e\u8a18\u8ff0\u4f4d\u7f6e\u3092\u95a2\u6570\u306e\u6700\u5f8c\u306b\u9650\u5b9a\u3059\u308b\u30eb\u30fc\u30eb\u3067\u3042\u308b\u3002<\/td><\/tr>
\u8a73\u7d30<\/td>\u95a2\u6570\u306e\u6700\u5f8c\u3068\u306f\u3001\u95a2\u6570\u672c\u4f53\u306e\u30d6\u30ed\u30c3\u30af\u3092\u7d42\u4e86\u3055\u305b\u308b\u6ce2\u62ec\u5f27\u306e”}”\u3092\u6307\u3059\u3002
\u95a2\u6570\u306e\u51fa\u53e3\u3068\u306freturn\u6587\u3092\u6307\u3059\u3002
(void\u578b\u95a2\u6570\u3067return\u6587\u304c\u7701\u7565\u3055\u308c\u305f\u5834\u5408\u306e\u95a2\u6570\u306e\u6700\u5f8c\u3082\u540c\u69d8\u3002)
1\u3064\u306e\u95a2\u6570\u306ereturn\u6587\u3092\u305d\u306e\u95a2\u6570\u306e\u6700\u5f8c\u306b1\u3064\u3060\u3051\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067\u3001
\u95a2\u6570\u5185\u306e\u5236\u5fa1\u306e\u6d41\u308c\u304c\u5358\u7d14\u5316\u3055\u308c\u3001\u53ef\u8aad\u6027\u30fb\u4fdd\u5b88\u6027\u304c\u5411\u4e0a\u3059\u308b\u3002
\u95a2\u6570\u306e\u51fa\u53e3\u304c\u8907\u6570\u3042\u308b\u5834\u5408\u3001\u5236\u5fa1\u30d5\u30ed\u30fc\u304c\u95a2\u6570\u306e\u9014\u4e2d\u3067\u4e2d\u65ad\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u3001
\u8aad\u307f\u624b\u306e\u6df7\u4e71\u3092\u62db\u304f\u5371\u967a\u6027\u304c\u3042\u308b\u3002
\u307e\u305f\u3001\u95a2\u6570\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u4fee\u6b63\u5185\u5bb9\u306b\u3088\u3063\u3066\u306f\u3001\u8907\u6570\u306e\u51fa\u53e3\u305d\u308c\u305e\u308c\u306b\u4fee\u6b63\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001
\u4fee\u6b63\u5fd8\u308c\u306a\u3069\u3092\u8a98\u767a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u30eb\u30fc\u30eb14.7\u306f\u95a2\u6570\u306e\u51fa\u53e3\u306f1\u7b87\u6240\u306e\u307f\u306b\u3059\u3079\u304d\u3068\u3044\u3046\u30eb\u30fc\u30eb\u3067\u3059\u3002
\u95a2\u6570\u306e\u51fa\u53e3\u3092\u8907\u6570\u8a2d\u7f6e\u3057\u305f\u5834\u5408\u3001\u5404\u30d1\u30bf\u30fc\u30f3\u306e\u51e6\u7406\u3092\u77ed\u304f\u3067\u304d\u307e\u3059\u304c\u3001
\u8907\u6570\u306e\u51fa\u53e3\u304b\u3089\u95a2\u6570\u306e\u51e6\u7406\u304c\u4e2d\u65ad\u3055\u308c\u308b\u4e8b\u3067\u3001\u51e6\u7406\u306e\u6d41\u308c\u3092\u628a\u63e1\u3057\u3065\u3089\u304f\u306a\u308a\u3001\u53ef\u8aad\u6027\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002
\u307e\u305f\u3001\u51e6\u7406\u306e\u6d41\u308c\u304c\u628a\u63e1\u3057\u3065\u3089\u304f\u306a\u308b\u4e8b\u3067\u51e6\u7406\u306e\u5185\u5bb9\u306b\u898b\u843d\u3068\u3057\u304c\u8d77\u3053\u308b\u53ef\u80fd\u6027\u3082\u5897\u3048\u308b\u306e\u3067\u3001\u4fdd\u5b88\u6027\u3082\u4f4e\u4e0b\u3057\u307e\u3059\u3002
\u4e00\u65b9\u3067\u95a2\u6570\u306e\u51fa\u53e3\u30921\u7b87\u6240\u306e\u307f\u306b\u3059\u308b\u4e8b\u3067\u3001\u5404\u30d1\u30bf\u30fc\u30f3\u306e\u51e6\u7406\u304c\u9577\u304f\u306a\u308a\u307e\u3059\u304c\u3001
\u95a2\u6570\u5916\u90e8\u3068\u306e\u7e4b\u304c\u308a\u304c1\u7b87\u6240\u306e\u307f\u306b\u306a\u308a\u3001\u51e6\u7406\u5168\u4f53\u306e\u53ef\u8aad\u6027\u30fb\u4fdd\u5b88\u6027\u304c\u5411\u4e0a\u3059\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002
\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4ee5\u4e0b\u306b\u8a18\u5165\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

1.2\u3000\u30eb\u30fc\u30eb14.7\u3092\u9038\u8131\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n

\u5171\u901a\u5909\u6570\u5b9a\u7fa9
\u5168\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u4f7f\u7528\u3059\u308b\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u306e\u5b9a\u7fa9\u3092\u4ee5\u4e0b\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002
\u3053\u308c\u4ee5\u964d\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u4e0b\u8a18\u306e\u5909\u6570\u306e\u5b9a\u7fa9\u306e\u8a18\u8ff0\u306f\u7701\u7565\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

unsigned long\tul_a;\t\/*\u95a2\u6570\u5916\u90e8\u3067\u66f4\u65b0\u3055\u308c\u308b\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5b9a\u7fa9\t*\/\nunsigned long\tul_b;\t\/*\u95a2\u6570\u5916\u90e8\u3067\u66f4\u65b0\u3055\u308c\u308b\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u3092\u5b9a\u7fa9\t*\/<\/code><\/pre><\/div>\n\n\n\n
\u95a2\u6570\u306e\u51fa\u53e3\u304c\u8907\u6570\u3042\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n
void ng_func1()\n{\n\tif( ul_a == 1UL )\n\t{\n\t\tul_b = 10UL;\n\t\treturn;\t\t\/*\u95a2\u6570\u306e\u51fa\u53e31*\/\n\t}\n\n\tif( ul_a == 0UL )\n\t{\n\t\tul_b = 0UL;\n\t\treturn;\t\t\/*\u95a2\u6570\u306e\u51fa\u53e32*\/\n\t}\n\treturn;\t\t\t\/*\u95a2\u6570\u306e\u51fa\u53e33*\/\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u5404if\u6587\u306e\u5185\u90e8\u306b\u3066\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u306eul_b\u3092\u66f4\u65b0\u3057\u3001\u305d\u306e\u307e\u307ereturn\u6587\u3067\u95a2\u6570\u3092\u7d42\u3048\u3066\u3044\u307e\u3059\u3002
\u6a5f\u80fd\u3068\u3057\u3066\u306f\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u95a2\u6570\u306e\u51fa\u53e3\u6bce\u306b\u95a2\u6570\u304c\u9014\u5207\u308c\u308b\u70ba\u3001\u53ef\u8aad\u6027\u304c\u4f4e\u3044\u3067\u3059\u3002<\/p>\n\n\n\n
1.3\u3000\u30eb\u30fc\u30eb14.7\u306b\u6e96\u62e0\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n
\u95a2\u6570\u306e\u51fa\u53e3\u304c1\u7b87\u6240\u306e\u307f\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n
void ok_func1()\n{\n\tif( ul_a == 1UL )\n\t{\n\t\tul_b = 10UL;\n\t}\n\n\tif( ul_a == 0UL )\n\t{\n\t\tul_b = 0UL;\n\t}\n\treturn;\t\t\t\/*\u95a2\u6570\u306e\u51fa\u53e3*\/\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u5404if\u6587\u306e\u5185\u90e8\u306b\u3066\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u306eul_b\u3092\u66f4\u65b0\u3057\u3001return\u6587\u3092\u95a2\u6570\u306e\u6700\u5f8c\u306b\u8a18\u8ff0\u3057\u3066\u95a2\u6570\u3092\u7d42\u3048\u3066\u3044\u307e\u3059\u3002
\u95a2\u6570\u306e\u51fa\u53e3\u304c\u4e00\u3064\u306e\u307f\u306e\u70ba\u3001\u53ef\u8aad\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002
\u3082\u3057\u3001\u95a2\u6570\u623b\u308a\u5024\u3092\u975evoid\u3078\u5909\u66f4\u3059\u308b\u3053\u3068\u306b\u306a\u3063\u305f\u5834\u5408\u3001\u9038\u8131\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u8907\u6570\u306e\u51fa\u53e3\u305d\u308c\u305e\u308c\u306b\u4fee\u6b63\u304c\u5fc5\u8981\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u304c
\u6e96\u62e0\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3042\u308c\u3070\u552f\u4e00\u306e\u51fa\u53e3\u306e\u307f\u4fee\u6b63\u3059\u308c\u3070\u3088\u3044\u306e\u3067\u4fee\u6b63\u6f0f\u308c\u306f\u767a\u751f\u3057\u3065\u3089\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
2\uff0eMISRA-C:2004\u3000\u30eb\u30fc\u30ebNo.16.8\u306e\u7d39\u4ecb<\/p><\/blockquote><\/figure>\n\n\n\n
2.1\u3000\u30eb\u30fc\u30ebNo.16.8\u306b\u3064\u3044\u3066<\/p>\n\n\n\n
\u30eb\u30fc\u30ebNo.<\/td>16.8<\/td><\/tr>
\u30ab\u30c6\u30b4\u30ea\u30fc<\/td>\u5fc5\u8981<\/td><\/tr>
\u5185\u5bb9<\/td>\u623b\u308a\u5024\u306e\u578b\u304c\u975evoid\u306e\u95a2\u6570\u306e\u5834\u5408\u3001\u3059\u3079\u3066\u306e\u51fa\u53e3\u3067\u3001\u5f0f\u3092\u3082\u3064\u660e\u793a\u7684\u306areturn\u6587\u3092\u8a18\u8ff0\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/td><\/tr>
\u8a73\u7d30<\/td>\u5236\u5fa1\u304c\u5230\u9054\u3057\u306a\u3044\u3088\u3046\u306breturn\u6587\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3068\u3001\u305d\u306ereturn\u6587\u306b\u306f\u5f0f\u3092\u3082\u305f\u305b\u308b\u3053\u3068\u3092\u8981\u6c42\u3057\u3066\u3044\u308b\u3002
\u95a2\u6570\u3092\u7d42\u4e86\u3055\u305b\u308b\u6ce2\u62ec\u5f27”}”\u306b\u5236\u5fa1\u304c\u5230\u9054\u3059\u308b\u3053\u3068\u306f\u3001\u5f0f\u3092\u3082\u305f\u306a\u3044retun\u6587\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3068\u7b49\u4fa1\u3067\u3042\u308b\u3002
return\u306b\u8a18\u8ff0\u3059\u308b\u5f0f\u306e\u6f5c\u5728\u578b\u304c\u95a2\u6570\u306e\u578b\u3068\u7570\u306a\u308b\u5834\u5408\u306b\u660e\u793a\u7684\u306a\u30ad\u30e3\u30b9\u30c8\u3092\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002
\u30eb\u30fc\u30eb16.8\u3067\u306f\u300c\u3059\u3079\u3066\u306e\u51fa\u53e3\u3067\u300d\u3068\u306a\u3063\u3066\u3044\u308b\u304c\u3001\u95a2\u6570\u304c\u8907\u6570\u306e\u51fa\u53e3\u3092\u6301\u3064\u3053\u3068\u306f\u3001
\u30eb\u30fc\u30eb14.7\u306b\u975e\u9069\u5408\u3067\u3042\u308b\u305f\u3081\u3001\u5b9f\u969b\u306b\u306f\u300c\u6700\u5f8c\u306e\u552f\u4e00\u306e\u51fa\u53e3\u3067\u300d\u5f0f\u3092\u3082\u3064\u660e\u793a\u7684\u306areturn\u6587\u3092\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u30eb\u30fc\u30eb16.8\u306fvoid\u578b\u4ee5\u5916\u306e\u30c7\u30fc\u30bf\u578b\u95a2\u6570\u306e\u51fa\u53e3\u306b\u306f\u623b\u308a\u5024\u3092\u8a18\u8ff0\u3059\u308b\u3068\u3044\u3046\u30eb\u30fc\u30eb\u3067\u3059\u3002
\u4e0a\u8a18\u306e\u30eb\u30fc\u30eb\u3092\u9055\u53cd\u3057\u305f\u5834\u5408\u3001\u95a2\u6570\u306e\u623b\u308a\u5024\u304c\u6b63\u3057\u304f\u51fa\u529b\u3055\u308c\u305a\u30d0\u30b0\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002
\u95a2\u6570\u623b\u308a\u5024\u304c\u629c\u3051\u3066\u3044\u308b\u5834\u5408\u3001\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3082\u3088\u308a\u307e\u3059\u304c\u3001\u30a8\u30e9\u30fc\u6271\u3044\u3068\u306a\u3089\u305a\u306b
\u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u5b8c\u4e86\u3057\u3066\u30bd\u30d5\u30c8\u306b\u30d0\u30b0\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u6ce8\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
2.2\u3000\u30eb\u30fc\u30eb16.8\u3092\u9038\u8131\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n
\u95a2\u6570\u306e\u51fa\u53e3\u306b\u623b\u308a\u5024\u304c\u306a\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n
unsigned long ng_func2()\n{\n\tunsigned long ret;\t\/*\u95a2\u6570\u623b\u308a\u5024\u306e\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u5b9a\u7fa9*\/\n\n\tret = 0UL;\n\n\tif( ul_a == 1UL )\n\t{\n\t\tret = 10UL;\n\t}\n\telse if( ul_a == 0UL )\n\t{\n\t\tret = 5UL;\n\t}\n\telse\n\t{\n\t\t\/*\u4f55\u3082\u3057\u306a\u3044*\/\n\t}\n\treturn;\t\t\t\t\/*\u95a2\u6570\u306e\u51fa\u53e3\u306b\u623b\u308a\u5024\u304c\u306a\u3044*\/\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3067\u3042\u308bret\u3092\u95a2\u6570\u5185\u90e8\u3067\u66f4\u65b0\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u95a2\u6570\u623b\u308a\u5024\u3068\u3057\u3066\u8a18\u8ff0\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001ret\u306e\u5024\u304c\u6b63\u3057\u304f\u51fa\u529b\u3055\u308c\u307e\u305b\u3093\u3002
\u305d\u306e\u305f\u3081\u3001\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057\u5143\u3067\u4ed5\u69d8\u901a\u308a\u306e\u7d50\u679c\u3092\u53d7\u3051\u53d6\u308c\u305a\u306b\u30d0\u30b0\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
2.3\u3000\u30eb\u30fc\u30eb16.8\u306b\u6e96\u62e0\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n
\u95a2\u6570\u306e\u51fa\u53e3\u306b\u623b\u308a\u5024\u306e\u5909\u6570\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n
unsigned long ok_func2()\n{\n\tunsigned long ret;\t\/*\u95a2\u6570\u623b\u308a\u5024\u306e\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u5b9a\u7fa9*\/\n\n\tret = 0UL;\n\n\tif( ul_a == 1UL )\n\t{\n\t\tret = 10UL;\n\t}\n\telse if( ul_a == 0UL )\n\t{\n\t\tret = 5UL;\n\t}\n\telse\n\t{\n\t\t\/*\u4f55\u3082\u3057\u306a\u3044*\/\n\t}\n\treturn ret;\t\t\t\/*\u95a2\u6570\u306e\u51fa\u53e3\u306b\u623b\u308a\u5024\u306e\u5909\u6570\u3092\u8a2d\u5b9a*\/\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3067\u3042\u308bret\u3092\u95a2\u6570\u5185\u90e8\u3067\u66f4\u65b0\u5f8c\u306b\u3001\u95a2\u6570\u623b\u308a\u5024\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u305f\u3081\u3001ret\u306e\u5024\u304c\u6b63\u3057\u304f\u51fa\u529b\u3055\u308c\u307e\u3059\u3002

\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u30a8\u30e9\u30fc\u6271\u3044\u3057\u306a\u3044\u5834\u5408\u306f\u898b\u843d\u3068\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3057\u3001\u554f\u984c\u304c\u8d77\u3053\u3063\u3066\u3082\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3065\u3089\u3044\u7b87\u6240\u3068\u601d\u308f\u308c\u307e\u3059\u3002
\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u7b49\u3067\u672c\u30eb\u30fc\u30eb\u306b\u6e96\u62e0\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u898b\u843d\u3068\u3057\u306e\u306a\u3044\u3088\u3046\u306b\u3057\u305f\u65b9\u304c\u826f\u3044\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
3\uff0e\u30eb\u30fc\u30eb14.7&16.8\u3092\u6e96\u62e0\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u3001\u9038\u8131\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0<\/p><\/blockquote><\/figure>\n\n\n\n
3.1\u3000\u30eb\u30fc\u30eb14.7&16.8\u3092\u9038\u8131\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n
\u95a2\u6570\u306e\u51fa\u53e3\u304c\u8907\u6570\u3042\u308a\u3001\u623b\u308a\u5024\u306e\u8a2d\u5b9a\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u306a\u3044\u95a2\u6570\u306e\u51fa\u53e3\u304c\u5b58\u5728\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n
unsigned short ng_func3()\n{\n\tunsigned long ret;\t\t\t\t\/*\u95a2\u6570\u623b\u308a\u5024\u306e\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u5b9a\u7fa9*\/\n\n\tret = 0UL;\n\n\tif( ul_a == 1UL )\n\t{\n\t\tret = 10UL;\n\t\treturn;\t\t\t\t\t\t\/*\u95a2\u6570\u306e\u51fa\u53e31*\/\n\t}\n\telse if( ul_a == 0UL )\n\t{\n\t\tret = 5UL;\n\t\treturn ret;\t\t\t\t\t\/*\u95a2\u6570\u306e\u51fa\u53e32\u306b\u623b\u308a\u5024\u306e\u578b\u3068\u7570\u306a\u308b\u578b\u306e\u5909\u6570\u3092\u8a2d\u5b9a*\/\n\t}\n\telse\n\t{\n\t\t\/*\u4f55\u3082\u3057\u306a\u3044*\/\n\t}\n\treturn (unsigned short)ret;\t\t\/*\u95a2\u6570\u306e\u51fa\u53e33\u306b\u623b\u308a\u5024\u306e\u578b\u3068\u540c\u3058\u578b\u306e\u5909\u6570\u3092\u8a2d\u5b9a*\/\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3067\u3042\u308bret\u3092\u5404if\u6587\u306e\u5185\u90e8\u306b\u3066\u66f4\u65b0\u3057\u3001\u95a2\u6570\u623b\u308a\u5024\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002
\u95a2\u6570\u306e\u51fa\u53e3\u304c3\u7b87\u6240\u3042\u308a\uff08\u30eb\u30fc\u30eb14.7\u9038\u8131\uff09\u3001
\u51fa\u53e31\u3067\u306f\u623b\u308a\u5024\u306e\u5909\u6570\u304c\u629c\u3051\u3066\u304a\u308a\uff08\u30eb\u30fc\u30eb16.8\u9038\u8131\uff09\u3001
\u51fa\u53e32\u3067\u306f\u95a2\u6570\u306e\u30c7\u30fc\u30bf\u578b\u3068\u7570\u306a\u308b\u5909\u6570\u3092\u623b\u308a\u5024\u306b\u8a2d\u5b9a\u3057\u3066\u304a\u308a\u307e\u3059\uff08\u30eb\u30fc\u30eb16.8\u9038\u8131\uff09\u3002<\/p>\n\n\n\n
3.2\u3000\u30eb\u30fc\u30eb14.7&16.8\u306b\u6e96\u62e0\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0<\/p>\n\n\n\n
\u95a2\u6570\u306e\u51fa\u53e3\u304c1\u7b87\u6240\u306e\u307f\u3067\u3042\u308a\u3001\u623b\u308a\u5024\u306e\u8a2d\u5b9a\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n\n\n\n
unsigned short ok_func3()\n{\n\tunsigned long ret;\t\t\t\t\/*\u95a2\u6570\u623b\u308a\u5024\u306e\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u5b9a\u7fa9*\/\n\n\tret = 0UL;\n\n\tif( ul_a == 1UL )\n\t{\n\t\tret = 10UL;\n\t}\n\telse if( ul_a == 0UL )\n\t{\n\t\tret = 5UL;\n\t}\n\telse\n\t{\n\t\t\/*\u4f55\u3082\u3057\u306a\u3044*\/\n\t}\n\treturn (unsigned short)ret;\t\t\/*\u95a2\u6570\u306e\u51fa\u53e3*\/\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3067\u3042\u308bret\u3092\u5404if\u6587\u306e\u5185\u90e8\u306b\u3066\u66f4\u65b0\u3057\u3001\u95a2\u6570\u306e\u51fa\u53e3\u306e\u623b\u308a\u5024\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002
\u51fa\u53e3\u304c\u4e00\u7b87\u6240\u306e\u307f\u3068\u306a\u3063\u305f\u305f\u3081\u3001\u95a2\u6570\u306e\u53ef\u8aad\u6027\u304c\u9ad8\u304f\u3001\u623b\u308a\u5024\u3082\u6b63\u3057\u304f\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
4.\u5f8c\u66f8\u304d<\/p><\/blockquote><\/figure>\n\n\n\n
\u4eca\u56de\u306f\u95a2\u6570\u306e\u51fa\u53e3\u306e\u30eb\u30fc\u30eb\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002
\u95a2\u6570\u306e\u51fa\u53e3\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u6a5f\u80fd\u3067\u3042\u308a\u3001\u7570\u5e38\u304c\u3042\u308c\u3070\u95a2\u6570\u81ea\u4f53\u304c\u6a5f\u80fd\u4e0d\u5168\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002
\u4eca\u56de\u7d39\u4ecb\u3057\u305f\u30eb\u30fc\u30eb\u306b\u6e96\u62e0\u3059\u308b\u4e8b\u3067\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3057\u3001\u95a2\u6570\u306e\u30d0\u30b0\u306e\u767a\u751f\u3092\u672a\u7136\u306b\u9632\u3050\u3053\u3068\u306b\u3064\u306a\u304c\u308b\u3068\u601d\u3044\u307e\u3059\u3002
\u672c\u8a18\u4e8b\u304c\u95a2\u6570\u4f5c\u6210\u6642\u306e\u53c2\u8003\u306b\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n\n\n\n
\u904e\u53bb\u306b\u7d39\u4ecb\u3057\u305fMISRA-C\u30eb\u30fc\u30eb\u306e\u8a18\u4e8b\u306e\u30ea\u30f3\u30af\u4e00\u89a7\u3067\u3059\u3002\u3088\u308d\u3057\u3051\u308c\u3070\u3053\u3061\u3089\u3082\u3054\u89a7\u4e0b\u3055\u3044\u3002
\u7b2c1\u56de\uff1ahttps:\/\/avancesys.co.jp\/laboratory\/article\/%e7%ac%ac1%e5%9b%9e-misra-c-%ef%bd%9emisra-c%e8%a6%8f%e6%a0%bc%ef%bd%9e\/
\u7b2c2\u56de\uff1ahttps:\/\/avancesys.co.jp\/laboratory\/article\/%e7%ac%ac2%e5%9b%9e-misra-c-%ef%bd%9e%e5%bf%85%e8%a6%81%e3%83%ab%e3%83%bc%e3%83%ab%e3%81%ae%e9%80%b8%e8%84%b1%e6%89%8b%e9%a0%86%ef%bd%9e\/
\u7b2c3\u56de\uff1ahttps:\/\/avancesys.co.jp\/laboratory\/article\/%e7%ac%ac3%e5%9b%9e-misra-c-%ef%bd%9e%e6%8e%a8%e5%a5%a8%e3%83%ab%e3%83%bc%e3%83%ab%ef%bd%9e\/
\u7b2c4\u56de\uff1ahttps:\/\/avancesys.co.jp\/laboratory\/article\/%e7%ac%ac4%e5%9b%9e-misra-c-%ef%bd%9e%e3%83%ab%e3%83%bc%e3%83%abno-10-3%e3%81%ae%e8%a7%a3%e8%aa%ac%ef%bd%9e\/
\u7b2c5\u56de\uff1ahttps:\/\/avancesys.co.jp\/laboratory\/article\/%e7%ac%ac5%e5%9b%9e-misra-c-%ef%bd%9e%e3%83%ab%e3%83%bc%e3%83%abno-19-4%e3%81%ae%e8%a7%a3%e8%aa%ac%ef%bd%9e\/<\/p>\n\n\n\n
<\/div>\n\n\n\n
5.\u5f15\u7528\u30fb\u53c2\u8003\u6587\u732e<\/p><\/blockquote><\/figure>\n\n\n\n
\u300c\u7d44\u8fbc\u307f\u958b\u767a\u8005\u306b\u304a\u304f\u308bMISRA-C:2004 C\u8a00\u8a9e\u5229\u7528\u306e\u9ad8\u4fe1\u983c\u5316\u30ac\u30a4\u30c9\u300d\u3001MISRA-C \u7814\u7a76\u4f1a\u7de8\u3001ISBN 9784542503342\u3001\u65e5\u672c\u898f\u683c\u5354\u4f1a<\/p>\n\n\n\n
<\/div>\n\n\n\n
<\/p>\n","protected":false},"author":30,"featured_media":157,"template":"","lc":[12],"lt":[19,20],"class_list":["post-1641","article","type-article","status-publish","has-post-thumbnail","hentry","lc-introduction","lt-embedded","lt-in-vehicle"],"_links":{"self":[{"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/article\/1641","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/article"}],"about":[{"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/types\/article"}],"author":[{"embeddable":true,"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/users\/30"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/media\/157"}],"wp:attachment":[{"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/media?parent=1641"}],"wp:term":[{"taxonomy":"lc","embeddable":true,"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/lc?post=1641"},{"taxonomy":"lt","embeddable":true,"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/lt?post=1641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}