{"id":10233,"date":"2026-02-05T18:08:49","date_gmt":"2026-02-05T09:08:49","guid":{"rendered":"https:\/\/techmania.jp\/blog\/?p=10233"},"modified":"2026-02-05T18:08:51","modified_gmt":"2026-02-05T09:08:51","slug":"clang-float","status":"publish","type":"post","link":"https:\/\/techmania.jp\/blog\/clang-float\/","title":{"rendered":"\u3010C\u8a00\u8a9e\u5165\u9580\u3011\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\uff08float \/ double\uff09\u306e\u4f7f\u3044\u65b9"},"content":{"rendered":"\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u6570\u5024\u3092\u6271\u3046\u6642\u306b\u3001\u5fc5\u305a\u3057\u3082\u305d\u306e\u5024\u304c\u6574\u6570\u3067\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<br>C\u8a00\u8a9e\u306b\u306f\u3001\u5b9f\u6570\u3092\u6271\u3046\u305f\u3081\u306e\u69d8\u3005\u306a\u30c7\u30fc\u30bf\u578b\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u4e2d\u3067\u3082\u5c0f\u6570\u3092\u6271\u3046\u969b\u306b\u4f7f\u7528\u3059\u308b\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\uff08float\u578b \/ double\u578b\uff09\u3068\u3044\u3046\u3082\u306e\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001C\u8a00\u8a9e\u3067\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<br>\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u3068\u306f\u4f55\u304b\uff1f\u3068\u3044\u3063\u305f\u70b9\u304b\u3089\u3001\u4f7f\u7528\u6642\u306e\u57fa\u672c\u69cb\u6587\u3084\u6ce8\u610f\u70b9\u306b\u3064\u3044\u3066\u306a\u3069\u3001\u8a73\u3057\u304f\u8aac\u660e\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 id=\"outline__1\" class=\"wp-block-heading\">C\u8a00\u8a9e\u306e\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u3068\u306f\u3001\u6570\u5024\u3092\u6271\u3046\u30c7\u30fc\u30bf\u578b\u306e\u3046\u3061\u3001\u5c0f\u6570\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306b\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u578b\u306e\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u306f\u4e3b\u306b\u3001float\u578b\uff08\u5358\u7cbe\u5ea6\uff09\u3068 double\u578b\uff08\u500d\u7cbe\u5ea6\uff09\u306e\uff12\u3064\u304c\u3042\u308a\u307e\u3059\u3002<br>\uff08\u305f\u3060\u3057\u3001\u5bfe\u5fdc\u3059\u308b\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3088\u3063\u3066\u306f long double\u578b\u3082\u5b58\u5728\u3057\u307e\u3059\uff09<\/p>\n\n\n\n<h3 id=\"outline__1_1\" class=\"wp-block-heading\">\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u306e\u5358\u7cbe\u5ea6\u3068\u500d\u7cbe\u5ea6\u306e\u9055\u3044<\/h3>\n\n\n\n<p>float\u578b\uff08\u5358\u7cbe\u5ea6\uff09\u3068 double\u578b\uff08\u500d\u7cbe\u5ea6\uff09\u3067\u306f\u3001\u305d\u308c\u305e\u308c\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u304c\u7570\u306a\u308b\u305f\u3081\u3001\u6271\u3048\u308b\u6841\u6570\u306b\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<br>float\u578b\u306f32\u30d3\u30c3\u30c8\uff084\u30d0\u30a4\u30c8\uff09\u3067\u7d047\u6841\u3001double\u578b\u306f64\u30d3\u30c3\u30c8\uff088\u30d0\u30a4\u30c8\uff09\u3067\u7d0416\u6841\u306e\u5c0f\u6570\u304c\u8868\u73fe\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u306f\u3001\u30de\u30a4\u30ca\u30b9\u7b26\u53f7\uff08 \u2013 \uff09\u3084\u5c0f\u6570\u70b9\u3092\u793a\u3059\u30c9\u30c3\u30c8\uff08 . \uff09 \u3092\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u7406\u89e3\u53ef\u80fd\u306a\uff12\u9032\u6570\u3067\u8868\u3059\u305f\u3081\u306b\u3001\u7b26\u53f7\u90e8\u30fb\u6307\u6570\u5206\u30fb\u4eee\u6570\u90e8\u306e\uff13\u3064\u306b\u5206\u3051\u3066\u60c5\u5831\u3092\u8868\u3057\u307e\u3059\u3002<br>\u5c0f\u6570\u306f \u300c \u4eee\u6570 \u00d7 \uff12\u306e\u57fa\u6570\u4e57&nbsp;\u300d\u306e\u8a08\u7b97\u5f0f\u3067\u8868\u73fe\u3055\u308c\u3001\u7b26\u53f7\u90e8\u306b\u306f\u7b26\u53f7\u3092\u8868\u3059\u6570 (0\u304c\u30d7\u30e9\u30b9\u30011\u304c\u30de\u30a4\u30ca\u30b9)\u3001\u6307\u6570\u90e8\u3068\u4eee\u6570\u90e8\u306b\u306f\u305d\u308c\u305e\u308c\u8a08\u7b97\u5f0f\u306e\u5bfe\u5fdc\u3059\u308b\u90e8\u5206\u3092\u8868\u3059\u6570\u304c\u5165\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u305e\u308c\u306e\u60c5\u5831\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u30d3\u30c3\u30c8\u6570\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>float \u2026 1\u30d3\u30c3\u30c8\u30018\u30d3\u30c3\u30c8\u300123\u30d3\u30c3\u30c8<\/li>\n\n\n\n<li>double \u2026 1\u30d3\u30c3\u30c8\u300111\u30d3\u30c3\u30c8\u300152\u30d3\u30c3\u30c8<\/li>\n<\/ul>\n\n\n\n<p>\u6271\u3048\u308b\u30b5\u30a4\u30ba\u306e\u9055\u3044\u306b\u3088\u308a\u3001float\u578b\u3088\u308a\u3082 double\u578b\u306e\u65b9\u304c\u7cbe\u5ea6\u304c\u9ad8\u3044\u305f\u3081\u3001\u4e00\u822c\u7684\u306b\u306f double\u578b\u3092\u4f7f\u7528\u3059\u308b\u65b9\u304c\u3088\u308a\u826f\u3044\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br>\u304b\u3064\u3066\u306f\u3001float\u578b\u306e\u65b9\u304c\u5bb9\u91cf\u304c\u5c0f\u3055\u3044\u4ee3\u308f\u308a\u306b\u9ad8\u901f\u51e6\u7406\u3092\u5f97\u610f\u3068\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001\u8fd1\u5e74\u3067\u306f double\u578b\u3092\u4f7f\u3046\u3053\u3068\u3092\u524d\u63d0\u3068\u3059\u308b\u8a2d\u8a08\u304c\u3055\u308c\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3082\u591a\u304f\u3001double\u578b\u3067\u3082\u540c\u7b49\u4ee5\u4e0a\u306e\u901f\u5ea6\u3067\u51e6\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__2\" class=\"wp-block-heading\">float\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<p>\u305d\u308c\u3067\u306f\u65e9\u901f\u3001\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<br>\u307e\u305a\u306f\u3001float\u578b\u304b\u3089\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__2_1\" class=\"wp-block-heading\">\u5909\u6570\u5ba3\u8a00\u6642\u306e\u57fa\u672c\u69cb\u6587<\/h3>\n\n\n\n<p>float\u578b\u306e\u5909\u6570\u3092\u5ba3\u8a00\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono-NL.ttf\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono-NL,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:10px 0px 10px 16px;margin-bottom:-2px;width:100%;text-align:left;background-color:#304047;color:#d5ffff\">C<\/span><span role=\"button\" tabindex=\"0\" style=\"color:#EEFFFF;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>float \u5909\u6570\u540d = \u6570\u5024 f;<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme\" style=\"background-color: #263238\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #C792EA\">float<\/span><span style=\"color: #EEFFFF\"> \u5909\u6570\u540d <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #EEFFFF\"> \u6570\u5024 f<\/span><span style=\"color: #89DDFF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>C\u8a00\u8a9e\u3067\u306f\u3001\u5c0f\u6570\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 double\u578b\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u305f\u3081\u3001float\u578b\u3067\u3042\u308b\u3053\u3068\u3092\u660e\u793a\u3059\u308b\u305f\u3081\u306b\u6570\u5024\u306e\u672b\u5c3e\u306b f \u3092\u4ed8\u5c5e\u3057\u307e\u3059\u3002<br>\u307e\u305f\u3001\u4ee3\u5165\u3059\u308b\u5024\u306f\u6307\u6570\u8868\u8a18\u3067\u3082\u8a18\u8ff0\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono-NL.ttf\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono-NL,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:10px 0px 10px 16px;margin-bottom:-2px;width:100%;text-align:left;background-color:#304047;color:#d5ffff\">C<\/span><span role=\"button\" tabindex=\"0\" style=\"color:#EEFFFF;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>float x = 1.2345E+1;<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme\" style=\"background-color: #263238\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #C792EA\">float<\/span><span style=\"color: #EEFFFF\"> x <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #F78C6C\">1.2345E<\/span><span style=\"color: #89DDFF\">+<\/span><span style=\"color: #F78C6C\">1<\/span><span style=\"color: #89DDFF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3001\u5b9f\u969b\u306e\u52d5\u304d\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono-NL.ttf\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono-NL,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:10px 0px 10px 16px;margin-bottom:-2px;width:100%;text-align:left;background-color:#304047;color:#d5ffff\">C<\/span><span role=\"button\" tabindex=\"0\" style=\"color:#EEFFFF;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>#include &lt;stdio.h>\n#include &lt;float.h>\n\nint main() {\n\n    float num = 12.345;\n\n    \/\/ float\u578b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306ff\n    printf(\"num\u306e\u5024: %f\\n\", num);\n\n    \/\/ float\u578b\u306e\u6307\u6570\u8868\u8a18\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306fe\n    printf(\"num\u306e\u6307\u6570\u8868\u8a18: %e\\n\", num);\n\n    float f_min = FLT_MIN; \/\/ float\u578b\u306e\u6700\u5c0f\u5024\n    float f_max = FLT_MAX; \/\/ float\u578b\u306e\u6700\u5927\u5024\n \n    printf(\"float\u578b\u306e\u6700\u5c0f\u5024: %e\\n\", f_min);\n    printf(\"float\u578b\u306e\u6700\u5927\u5024: %e\\n\", f_max);\n\n    return 0;\n}<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme\" style=\"background-color: #263238\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #89DDFF; font-style: italic\">#include<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #C3E88D\">stdio.h<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF; font-style: italic\">#include<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #C3E88D\">float.h<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #C792EA\">int<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #82AAFF\">main<\/span><span style=\"color: #89DDFF\">()<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #89DDFF\">{<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #C792EA\">float<\/span><span style=\"color: #F07178\"> num <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #F07178\"> <\/span><span style=\"color: #F78C6C\">12.345<\/span><span style=\"color: #89DDFF\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">    <\/span><span style=\"color: #546E7A; font-style: italic\">\/\/ float\u578b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306ff<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #82AAFF\">printf<\/span><span style=\"color: #89DDFF\">(<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #C3E88D\">num\u306e\u5024: <\/span><span style=\"color: #F07178\">%f<\/span><span style=\"color: #EEFFFF\">\\n<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #89DDFF\">,<\/span><span style=\"color: #F07178\"> num<\/span><span style=\"color: #89DDFF\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">    <\/span><span style=\"color: #546E7A; font-style: italic\">\/\/ float\u578b\u306e\u6307\u6570\u8868\u8a18\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306fe<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #82AAFF\">printf<\/span><span style=\"color: #89DDFF\">(<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #C3E88D\">num\u306e\u6307\u6570\u8868\u8a18: <\/span><span style=\"color: #F07178\">%e<\/span><span style=\"color: #EEFFFF\">\\n<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #89DDFF\">,<\/span><span style=\"color: #F07178\"> num<\/span><span style=\"color: #89DDFF\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #C792EA\">float<\/span><span style=\"color: #F07178\"> f_min <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #F07178\"> FLT_MIN<\/span><span style=\"color: #89DDFF\">;<\/span><span style=\"color: #546E7A; font-style: italic\"> \/\/ float\u578b\u306e\u6700\u5c0f\u5024<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #C792EA\">float<\/span><span style=\"color: #F07178\"> f_max <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #F07178\"> FLT_MAX<\/span><span style=\"color: #89DDFF\">;<\/span><span style=\"color: #546E7A; font-style: italic\"> \/\/ float\u578b\u306e\u6700\u5927\u5024<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #82AAFF\">printf<\/span><span style=\"color: #89DDFF\">(<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #C3E88D\">float\u578b\u306e\u6700\u5c0f\u5024: <\/span><span style=\"color: #F07178\">%e<\/span><span style=\"color: #EEFFFF\">\\n<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #89DDFF\">,<\/span><span style=\"color: #F07178\"> f_min<\/span><span style=\"color: #89DDFF\">);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #82AAFF\">printf<\/span><span style=\"color: #89DDFF\">(<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #C3E88D\">float\u578b\u306e\u6700\u5927\u5024: <\/span><span style=\"color: #F07178\">%e<\/span><span style=\"color: #EEFFFF\">\\n<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #89DDFF\">,<\/span><span style=\"color: #F07178\"> f_max<\/span><span style=\"color: #89DDFF\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #89DDFF; font-style: italic\">return<\/span><span style=\"color: #F07178\"> <\/span><span style=\"color: #F78C6C\">0<\/span><span style=\"color: #89DDFF\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono-NL.ttf\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono-NL,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:10px 0px 10px 16px;margin-bottom:-2px;width:100%;text-align:left;background-color:#304047;color:#d5ffff\">\u5b9f\u884c\u7d50\u679c<\/span><span role=\"button\" tabindex=\"0\" style=\"color:#EEFFFF;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>num\u306e\u5024: 12.345000\nnum\u306e\u6307\u6570\u8868\u8a18: 1.234500e+01\nfloat\u578b\u306e\u6700\u5c0f\u5024: 1.175494e-38\nfloat\u578b\u306e\u6700\u5927\u5024: 3.402823e+38<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme\" style=\"background-color: #263238\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #EEFFFF\">num\u306e\u5024: 12.345000<\/span><\/span>\n<span class=\"line\"><span style=\"color: #EEFFFF\">num\u306e\u6307\u6570\u8868\u8a18: 1.234500e+01<\/span><\/span>\n<span class=\"line\"><span style=\"color: #EEFFFF\">float\u578b\u306e\u6700\u5c0f\u5024: 1.175494e-38<\/span><\/span>\n<span class=\"line\"><span style=\"color: #EEFFFF\">float\u578b\u306e\u6700\u5927\u5024: 3.402823e+38<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>printf\u95a2\u6570\u306a\u3069\u3067 float\u578b\u306e\u5909\u6570\u3092\u6587\u5b57\u5217\u306b\u4ee3\u5165\u3059\u308b\u969b\u306f\u3001\u5909\u63db\u6307\u5b9a\u5b50\u306e \u300cf\u300d \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<br>\u6570\u5024\u306e\u8868\u8a18\u3092\u6307\u6570\u8868\u793a\u3067\u51fa\u529b\u3057\u305f\u3044\u5834\u5408\u306b\u306f\u3001\u5909\u63db\u6307\u5b9a\u5b50\u306e \u300ce\u300d \u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u8868\u793a\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>float\u578b\u306e\u6700\u5c0f\u5024\u3068\u6700\u5927\u5024\u306f\u74b0\u5883\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001float.h\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u30de\u30af\u30ed\u3092\u4f7f\u7528\u3057\u3066\u8abf\u3079\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<br>FLT_MIN\u3067\u6700\u5c0f\u5024\u3001FLT_MAX\u3067\u6700\u5927\u5024\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__3\" class=\"wp-block-heading\">double\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<p>double\u578b\u306e\u5909\u6570\u3092\u5ba3\u8a00\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono-NL.ttf\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono-NL,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:10px 0px 10px 16px;margin-bottom:-2px;width:100%;text-align:left;background-color:#304047;color:#d5ffff\">C<\/span><span role=\"button\" tabindex=\"0\" style=\"color:#EEFFFF;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>double \u5909\u6570\u540d = \u6570\u5024;<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme\" style=\"background-color: #263238\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #C792EA\">double<\/span><span style=\"color: #EEFFFF\"> \u5909\u6570\u540d <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #EEFFFF\"> \u6570\u5024<\/span><span style=\"color: #89DDFF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>\u5148\u307b\u3069\u3082\u89e3\u8aac\u3057\u305f\u3088\u3046\u306b\u3001C\u8a00\u8a9e\u3067\u306e\u5c0f\u6570\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 double\u578b\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059\u3002<br>\u305d\u306e\u305f\u3081\u3001float\u578b\u3067\u306f f \u3092\u6570\u5024\u306e\u672b\u5c3e\u306b\u4ed8\u3051\u3066\u578b\u3092\u660e\u793a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001double\u578b\u306e\u5834\u5408\u306f\u6570\u5024\u306e\u307f\u306e\u8a18\u8ff0\u3067\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<br>\u307e\u305f\u3001double\u578b\u3067\u3082\u4ee3\u5165\u3059\u308b\u5024\u306e\u6307\u6570\u8868\u8a18\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3001\u5b9f\u969b\u306e\u52d5\u304d\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono-NL.ttf\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono-NL,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:10px 0px 10px 16px;margin-bottom:-2px;width:100%;text-align:left;background-color:#304047;color:#d5ffff\">C<\/span><span role=\"button\" tabindex=\"0\" style=\"color:#EEFFFF;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>#include &lt;stdio.h>\n#include &lt;float.h>\n\nint main() {\n\n    double num = 567.89;\n\n    \/\/ double\u578b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306flf\n    printf(\"num\u306e\u5024: %lf\\n\", num);\n\n    \/\/ double\u578b\u306e\u6307\u6570\u8868\u8a18\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306fle\n    printf(\"num\u306e\u6307\u6570\u8868\u8a18: %le\\n\", num);\n\n    double d_min = DBL_MIN; \/\/ double\u578b\u306e\u6700\u5c0f\u5024\n    double d_max = DBL_MAX; \/\/ double\u578b\u306e\u6700\u5927\u5024\n \n    printf(\"double\u578b\u306e\u6700\u5c0f\u5024: %le\\n\", d_min);\n    printf(\"double\u578b\u306e\u6700\u5927\u5024: %le\\n\", d_max);\n\n    return 0;\n}<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme\" style=\"background-color: #263238\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #89DDFF; font-style: italic\">#include<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #C3E88D\">stdio.h<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF; font-style: italic\">#include<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #C3E88D\">float.h<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #C792EA\">int<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #82AAFF\">main<\/span><span style=\"color: #89DDFF\">()<\/span><span style=\"color: #EEFFFF\"> <\/span><span style=\"color: #89DDFF\">{<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #C792EA\">double<\/span><span style=\"color: #F07178\"> num <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #F07178\"> <\/span><span style=\"color: #F78C6C\">567.89<\/span><span style=\"color: #89DDFF\">;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">    <\/span><span style=\"color: #546E7A; font-style: italic\">\/\/ double\u578b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306flf<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #82AAFF\">printf<\/span><span style=\"color: #89DDFF\">(<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #C3E88D\">num\u306e\u5024: <\/span><span style=\"color: #F07178\">%lf<\/span><span style=\"color: #EEFFFF\">\\n<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #89DDFF\">,<\/span><span style=\"color: #F07178\"> num<\/span><span style=\"color: #89DDFF\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">    <\/span><span style=\"color: #546E7A; font-style: italic\">\/\/ double\u578b\u306e\u6307\u6570\u8868\u8a18\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306fle<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #82AAFF\">printf<\/span><span style=\"color: #89DDFF\">(<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #C3E88D\">num\u306e\u6307\u6570\u8868\u8a18: <\/span><span style=\"color: #F07178\">%le<\/span><span style=\"color: #EEFFFF\">\\n<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #89DDFF\">,<\/span><span style=\"color: #F07178\"> num<\/span><span style=\"color: #89DDFF\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #C792EA\">double<\/span><span style=\"color: #F07178\"> d_min <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #F07178\"> DBL_MIN<\/span><span style=\"color: #89DDFF\">;<\/span><span style=\"color: #546E7A; font-style: italic\"> \/\/ double\u578b\u306e\u6700\u5c0f\u5024<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #C792EA\">double<\/span><span style=\"color: #F07178\"> d_max <\/span><span style=\"color: #89DDFF\">=<\/span><span style=\"color: #F07178\"> DBL_MAX<\/span><span style=\"color: #89DDFF\">;<\/span><span style=\"color: #546E7A; font-style: italic\"> \/\/ double\u578b\u306e\u6700\u5927\u5024<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\"> <\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #82AAFF\">printf<\/span><span style=\"color: #89DDFF\">(<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #C3E88D\">double\u578b\u306e\u6700\u5c0f\u5024: <\/span><span style=\"color: #F07178\">%le<\/span><span style=\"color: #EEFFFF\">\\n<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #89DDFF\">,<\/span><span style=\"color: #F07178\"> d_min<\/span><span style=\"color: #89DDFF\">);<\/span><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #82AAFF\">printf<\/span><span style=\"color: #89DDFF\">(<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #C3E88D\">double\u578b\u306e\u6700\u5927\u5024: <\/span><span style=\"color: #F07178\">%le<\/span><span style=\"color: #EEFFFF\">\\n<\/span><span style=\"color: #89DDFF\">&quot;<\/span><span style=\"color: #89DDFF\">,<\/span><span style=\"color: #F07178\"> d_max<\/span><span style=\"color: #89DDFF\">);<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #F07178\">    <\/span><span style=\"color: #89DDFF; font-style: italic\">return<\/span><span style=\"color: #F07178\"> <\/span><span style=\"color: #F78C6C\">0<\/span><span style=\"color: #89DDFF\">;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono-NL.ttf\" style=\"font-size:clamp(14px, .875rem, 21px);font-family:Code-Pro-JetBrains-Mono-NL,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:clamp(20px, 1.25rem, 30px);--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:10px 0px 10px 16px;margin-bottom:-2px;width:100%;text-align:left;background-color:#304047;color:#d5ffff\">\u5b9f\u884c\u7d50\u679c<\/span><span role=\"button\" tabindex=\"0\" style=\"color:#EEFFFF;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>num\u306e\u5024: 567.890000\nnum\u306e\u6307\u6570\u8868\u8a18: 5.678900e+02\ndouble\u578b\u306e\u6700\u5c0f\u5024: 2.225074e-308\ndouble\u578b\u306e\u6700\u5927\u5024: 1.797693e+308<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme\" style=\"background-color: #263238\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #EEFFFF\">num\u306e\u5024: 567.890000<\/span><\/span>\n<span class=\"line\"><span style=\"color: #EEFFFF\">num\u306e\u6307\u6570\u8868\u8a18: 5.678900e+02<\/span><\/span>\n<span class=\"line\"><span style=\"color: #EEFFFF\">double\u578b\u306e\u6700\u5c0f\u5024: 2.225074e-308<\/span><\/span>\n<span class=\"line\"><span style=\"color: #EEFFFF\">double\u578b\u306e\u6700\u5927\u5024: 1.797693e+308<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>printf\u95a2\u6570\u306a\u3069\u3067\u306e double\u578b\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306f \u300clf\u300d \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<br>\u307e\u305f\u3001double\u578b\u306e\u6307\u6570\u8868\u793a\u306e\u5909\u63db\u6307\u5b9a\u5b50\u306f \u300cle\u300d \u3067\u3059\u3002<\/p>\n\n\n\n<p>double\u578b\u306e\u6700\u5c0f\u5024\u3068\u6700\u5927\u5024\u306f\u3001\u305d\u308c\u305e\u308c DBL_MIN \u3068 DBL_MAX\u306e\u30de\u30af\u30ed\u3067\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__4\" class=\"wp-block-heading\">\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u3092\u6271\u3046\u969b\u306e\u6ce8\u610f\u70b9<\/h2>\n\n\n\n<p>C\u8a00\u8a9e\u3067\u306f\u3001\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u5c0f\u6570\u3092\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u4ed5\u69d8\u4e0a\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u8868\u73fe\u3067\u304d\u308b\u6570\u306b\u306f\u9650\u754c\u304c\u3042\u308b\u305f\u3081\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u8aa4\u5dee\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br>\u51e6\u7406\u5185\u5bb9\u306b\u3088\u308a\u3001\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3084\u30a2\u30f3\u30c0\u30fc\u30d5\u30ed\u30fc\u3001\u4e38\u3081\u8aa4\u5dee\u3084\u6253\u3061\u5207\u308a\u8aa4\u5dee\u306a\u3069\u306e\u73fe\u8c61\u304c\u767a\u751f\u3059\u308b\u30b1\u30fc\u30b9\u304c\u3042\u308a\u3001\u8868\u793a\u3055\u308c\u308b\u5024\u304c\u53b3\u5bc6\u306a\u6570\u5024\u3067\u306f\u306a\u3044\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__5\" class=\"wp-block-heading\">\u8a08\u7b97\u6642\u306b\u751f\u3058\u308b\u300c\u4e38\u3081\u8aa4\u5dee\u300d<\/h2>\n\n\n\n<p>\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u3092\u6271\u3046\u969b\u306b\u767a\u751f\u3059\u308b\u8aa4\u5dee\u73fe\u8c61\u306e\uff11\u3064\u304c\u3001\u4e38\u3081\u8aa4\u5dee\u3067\u3059\u3002<br>\u5c0f\u6570\u3092\u542b\u3080\u8a08\u7b97\u3092\u884c\u3046\u969b\u306b\u8d77\u3053\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e38\u3081\u8aa4\u5dee\u3068\u306f\u3001\u5024\u306e\u8a08\u7b97\u7d50\u679c\u304c\u4eee\u6570\u90e8\u3067\u8868\u793a\u53ef\u80fd\u306a\u6841\u6570\u3092\u8d85\u3048\u305f\u5834\u5408\u306b\u3001\u67a0\u5185\u306b\u53ce\u307e\u308b\u3088\u3046\u306b\u56db\u6368\u4e94\u5165\u3055\u308c\u308b\u73fe\u8c61\u306e\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002<br>\u5024\u304c\u4e38\u3081\u3089\u308c\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u53b3\u5bc6\u306a\u6570\u5024\u3068\u306f\u7570\u306a\u3063\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u8a08\u7b97\u7d50\u679c\u306f\u3042\u304f\u307e\u3067\u304a\u304a\u3088\u305d\u306e\u5024\u3067\u3042\u308b\u5834\u5408\u304c\u3042\u308b\u3053\u3068\u3092\u524d\u63d0\u3068\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 id=\"outline__6\" class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u3044\u304b\u304c\u3067\u3057\u305f\u304b\uff1f\u4eca\u56de\u306f\u3001C\u8a00\u8a9e\u3067\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u5b9f\u969b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u306f\u3001\u5c0f\u6570\u3092\u542b\u3080\u9ad8\u5ea6\u306a\u8a08\u7b97\u3092\u3059\u308b\u30b1\u30fc\u30b9\u3082\u591a\u304f\u3001\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u306f\u91cd\u8981\u306a\u30c7\u30fc\u30bf\u578b\u306e\uff11\u3064\u3068\u306a\u308a\u307e\u3059\u3002<br>\u57fa\u672c\u7684\u306b\u306f double\u578b\u306e\u4f7f\u7528\u3067\u554f\u984c\u306a\u304f\u52d5\u4f5c\u3067\u304d\u308b\u5834\u5408\u304c\u307b\u3068\u3093\u3069\u3067\u3059\u304c\u3001\u5bb9\u91cf\u306a\u3069\u306e\u554f\u984c\u3067\u53b3\u5bc6\u306b\u4f7f\u3044\u5206\u3051\u308b\u5fc5\u8981\u304c\u51fa\u3066\u304f\u308b\u30b1\u30fc\u30b9\u3082\u4e2d\u306b\u306f\u3042\u308b\u305f\u3081\u3001\u30b5\u30a4\u30ba\u306a\u3069\u306e\u9055\u3044\u3092\u628a\u63e1\u3057\u305f\u4e0a\u3067\u9069\u3057\u305f\u30c7\u30fc\u30bf\u578b\u3092\u9078\u629e\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3068\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 id=\"outline__7\" class=\"wp-block-heading\">C\u8a00\u8a9e\u306e\u52c9\u5f37\u65b9\u6cd5\u306f\uff1f<\/h2>\n\n\n<p>\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<br \/>\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<p>\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<p><span class=\"markerYellow\"><strong>\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<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/yuudou.png\" 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