{"id":92227,"date":"2024-03-21T14:59:07","date_gmt":"2024-03-21T05:59:07","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/float-%e5%9e%8b%e3%82%92-c-%e8%a8%80%e8%aa%9e%e3%81%a7%e4%bd%bf%e7%94%a8%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%ef%bc%9f\/"},"modified":"2024-04-04T11:44:32","modified_gmt":"2024-04-04T02:44:32","slug":"float-%e5%9e%8b%e3%82%92-c-%e8%a8%80%e8%aa%9e%e3%81%a7%e4%bd%bf%e7%94%a8%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/float-%e5%9e%8b%e3%82%92-c-%e8%a8%80%e8%aa%9e%e3%81%a7%e4%bd%bf%e7%94%a8%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af%ef%bc%9f\/","title":{"rendered":"float \u578b\u3092 C \u8a00\u8a9e\u3067\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\uff1f"},"content":{"rendered":"

C\u8a00\u8a9e\u3067\u306ffloat\u306f\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3092\u8868\u3059\u30c7\u30fc\u30bf\u578b\u3067\u3059\u3002<\/p>\n

float\u578b\u5909\u6570\u3092\u5ba3\u8a00\u3057\u3066\u521d\u671f\u5316\u3059\u308b\uff1a
\nfloat num; \/\/ float\u578b\u306e\u5909\u6570num\u3092\u5ba3\u8a00\u3059\u308b
\nfloat num = 3.14; \/\/ float\u578b\u306e\u5909\u6570num\u3092\u5ba3\u8a00\u3057\u3066\u521d\u671f\u5316\u3057\u3001\u5024\u3068\u3057\u30663.14\u3092\u4e0e\u3048\u308b<\/p>\n

\u6570\u5b66\u306e\u8a08\u7b97\u3092\u884c\u3046\u969b\u306f\u3001float\u578b\u306e\u5909\u6570\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002
\n\u4f8b:
\nfloat a = 3.5;
\nfloat b = 2.2;
\nfloat sum = a + b; \/\/ a\u3068b\u3092\u8db3\u3057\u3066\u3001\u305d\u306e\u7d50\u679c\u3092sum\u5909\u6570\u306b\u4ee3\u5165<\/p>\n

printf\u95a2\u6570\u306f\u6d6e\u52d5\u5c0f\u6570\u70b9\u578b\u306e\u6570\u5024\u3092\u5370\u5237\u3059\u308b\u306e\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002
\nprintf(“%f”, num); \/\/ \u5024num\u3092\u5370\u5237\u3057\u307e\u3059\u3002<\/p>\n

\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3067\u306f2\u9032\u6570\u3067\u8868\u73fe\u3055\u308c\u308b\u305f\u3081\u3001\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3092\u6bd4\u8f03\u3059\u308b\u969b\u306f\u4e38\u3081\u8aa4\u5dee\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \uff12\u3064\u306efloat\u578b\u306e\u5909\u6570\u304c\u7b49\u3057\u3044\u304b\u3069\u3046\u304b\u3092\u6bd4\u8f03\u3059\u308b\u5834\u5408\u3001\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306e\u8aa4\u5dee\u7bc4\u56f2\u3092\u4f7f\u7528\u3057\u3066\u6bd4\u8f03\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002
\nfloat a = 0.1 + 0.1 + 0.1;
\nfloat b = 0.3;
\nif (fabs(a – b) < 0.000001) {
\nprintf(\u201c\u7b49\u3057\u3044\u201d);
\n} else {
\nprintf(\u201c\u7b49\u3057\u304f\u306a\u3044\u201d);
\n}<\/p>\n

float\u578b\u306e\u57fa\u672c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u3067\u3059\u3002\u7686\u69d8\u306e\u304a\u5f79\u306b\u7acb\u3066\u308c\u3070\u5e78\u3044\u3067\u3059\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u8a00\u8a9e\u3067\u306ffloat\u306f\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3092\u8868\u3059\u30c7\u30fc\u30bf\u578b\u3067\u3059\u3002 float\u578b\u5909\u6570\u3092\u5ba3\u8a00\u3057\u3066\u521d\u671f\u5316\u3059\u308b\uff1a float num; \/\/ float\u578b\u306e\u5909\u6570num\u3092\u5ba3\u8a00\u3059\u308b float num = 3.14; \/\/ float\u578b\u306e\u5909\u6570 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-92227","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nfloat \u578b\u3092 C \u8a00\u8a9e\u3067\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/float-\u578b\u3092-c-\u8a00\u8a9e\u3067\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\uff1f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"float \u578b\u3092 C \u8a00\u8a9e\u3067\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\uff1f\" \/>\n<meta property=\"og:description\" content=\"C\u8a00\u8a9e\u3067\u306ffloat\u306f\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3092\u8868\u3059\u30c7\u30fc\u30bf\u578b\u3067\u3059\u3002 float\u578b\u5909\u6570\u3092\u5ba3\u8a00\u3057\u3066\u521d\u671f\u5316\u3059\u308b\uff1a float num; 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