{"id":46,"date":"2022-08-19T18:09:00","date_gmt":"2022-08-19T09:09:00","guid":{"rendered":"https:\/\/hitechs.co.jp\/contents\/?post_type=blog&#038;p=46"},"modified":"2025-01-21T18:10:24","modified_gmt":"2025-01-21T09:10:24","slug":"c-c-%e3%81%ae%e3%82%b3%e3%83%b3%e3%83%91%e3%82%a4%e3%83%ab%e6%99%82%e6%9c%80%e9%81%a9%e5%8c%96%e3%81%ab%e6%b3%a8%e6%84%8f%e3%81%99%e3%82%8b","status":"publish","type":"blog","link":"https:\/\/hitechs.co.jp\/contents\/blog\/46\/","title":{"rendered":"C\/C++ \u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u306b\u6ce8\u610f\u3059\u308b"},"content":{"rendered":"\n<div>\u306f\u3058\u3081\u307e\u3057\u3066\u3001\u5bcc\u5c71\u30aa\u30d5\u30a3\u30b9\u306e\u7530\u8ca1\u3067\u3059\u3002<\/div>\n<div>\u79c1\u306f\u666e\u6bb5&nbsp; C++ \u3092\u5229\u7528\u3057\u3066\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u306e\u3067\u3001\u3053\u308c\u306b\u95a2\u9023\u3057\u305f\u30c6\u30fc\u30de\u306b\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/div>\n<div>\u30c6\u30fc\u30de\u306f\u300cC\/C++ \u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u306b\u6ce8\u610f\u3059\u308b\u300d\u3067\u3059\u3002<\/div>\n<div><br \/><\/div>\n<div>\n  <div>\u307e\u305a\u3001C\/C++\u3092\u542b\u3080\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306f\u3001\u8a00\u8a9e\u4ed5\u69d8\u306b\u5f93\u3063\u305f\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304b\u3089\u3001<\/div>\n  <div>\u6a5f\u68b0\u8a9e\u3042\u308b\u3044\u306f\u5143\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3088\u308a\u3082\u4f4e\u3044\u6c34\u6e96\u306e\u30b3\u30fc\u30c9\u306b<\/div><div>\u5909\u63db\uff08\u30b3\u30f3\u30d1\u30a4\u30eb\uff09\u3059\u308b\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\uff08\u30b3\u30f3\u30d1\u30a4\u30e9(Wikipedia)\u3088\u308a\u5f15\u7528\uff09<\/div>\n  <div><br \/><\/div>\n  <div>\u307e\u305f\u3001C\/C++\u306e\u4e00\u822c\u7684\u306a\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u306f\u300c\u6700\u9069\u5316\u300d\u3068\u3044\u3046\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u3059\u3002<\/div>\n  <div>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u969b\u306b\u3001\u3088\u308a\u9ad8\u901f\u3067\u52d5\u304f\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u306a\u308b\u3088\u3046\u306b<\/div>\n  <div>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u793a\u3059\u7d50\u679c\u304c\u5909\u308f\u3089\u306a\u3044\u7bc4\u56f2\u3067\u6700\u9069\u5316\u3057\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u3001\u3068\u3044\u3046\u6a5f\u80fd\u3067\u3059\u3002<\/div>\n  <div><br \/><\/div><div>\u4eca\u56de\u306f\u3053\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u306b\u3064\u3044\u3066\u306e\u304a\u8a71\u3067\u3059\u304c\u3001<\/div>\n  <div>\u30c6\u30fc\u30de\u306e\u672c\u984c\u306b\u5165\u308b\u524d\u306b\u3001\u307e\u305a\u306f\u3053\u306e\u6700\u9069\u5316\u304c\u3069\u306e\u3088\u3046\u306a\u6a5f\u80fd\u306a\u306e\u304b\u3001\u8aac\u660e\u3057\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u4f8b\u30921\u3064\u63d0\u793a\u3057\u3066\u307f\u307e\u3059\u3002<\/div>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <iframe src=\"https:\/\/carbon.now.sh\/embed?bg=rgba%28171%2C+184%2C+195%2C+1%29&amp;t=seti&amp;wt=none&amp;l=auto&amp;width=680&amp;ds=false&amp;dsyoff=20px&amp;dsblur=68px&amp;wc=false&amp;wa=false&amp;pv=5px&amp;ph=5px&amp;ln=true&amp;fl=1&amp;fm=Hack&amp;fs=13px&amp;lh=150%25&amp;si=false&amp;es=2x&amp;wm=false&amp;code=%252F%252F%2520%25E6%259C%2580%25E9%2581%25A9%25E5%258C%2596%25E3%2581%25AE%25E7%25A2%25BA%25E8%25AA%258D%250Afor%2520%28int%2520i%2520%253D%25200%253B%2520i%2520%253C%252010%253B%2520i%252B%252B%29%2520%257B%250A%2509%252F%252F%252010%2520%25E3%2581%25AE%25E9%259A%258E%25E4%25B9%2597%25E3%2582%2592%25E8%25A8%2588%25E7%25AE%2597%250A%2509int%2520n10kai%2520%253D%25201%253B%250A%2509for%2520%28int%2520j%2520%253D%25201%253B%2520j%2520%253C%253D%252010%253B%2520j%252B%252B%29%2520%257B%250A%2509%2509n10kai%2520*%253D%2520j%253B%250A%2509%257D%250A%250A%2509%252F%252F%2520i%2520%25E3%2581%25AB%252010%2520%25E3%2581%25AE%25E9%259A%258E%25E4%25B9%2597%25E3%2582%2592%25E6%258E%259B%25E3%2581%2591%25E3%2581%25A6%25E5%2587%25BA%25E5%258A%259B%250A%2509int%2520n%2520%253D%2520i%2520*%2520n10kai%253B%250A%2509std%253A%253Acout%2520%253C%253C%2520n%2520%253C%253C%2520std%253A%253Aendl%253B%250A%257D\" style=\"width: 680px; height: 271px; border:0; transform: scale(1); overflow:hidden;\" sandbox=\"allow-scripts allow-same-origin\">\n<\/iframe>\n<div><br \/><\/div>\n<div>\n  <div>\u4e0a\u8a18\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u300110 \u306e\u968e\u4e57\u306b 0 \uff5e 9 \u3092\u9806\u306b\u639b\u3051\u3066\u3001<\/div>\n  <div>\u90fd\u5ea6\u6a19\u6e96\u51fa\u529b\u3059\u308b\u5358\u7d14\u306a\u3082\u306e\u3067\u3059\u3002<\/div>\n  <div>\u5b9f\u306f\u3001\u3053\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306b\u306f\u3001\u52b9\u7387\u306e\u60aa\u3044\u51e6\u7406\u3068\u306a\u3063\u3066\u3044\u308b\u90e8\u5206\u304c\u3042\u308a\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u7d4c\u9a13\u306e\u3042\u308b\u4eba\u3067\u3042\u308c\u3070\u4e00\u76ee\u3067\u308f\u304b\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001<\/div>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <iframe src=\"https:\/\/carbon.now.sh\/embed?bg=rgba%28171%2C+184%2C+195%2C+1%29&amp;t=seti&amp;wt=none&amp;l=auto&amp;width=680&amp;ds=false&amp;dsyoff=20px&amp;dsblur=68px&amp;wc=false&amp;wa=false&amp;pv=5px&amp;ph=5px&amp;ln=true&amp;fl=1&amp;fm=Hack&amp;fs=13px&amp;lh=150%25&amp;si=false&amp;es=2x&amp;wm=false&amp;code=%252F%252F%252010%2520%25E3%2581%25AE%25E9%259A%258E%25E4%25B9%2597%25E3%2582%2592%25E8%25A8%2588%25E7%25AE%2597%250Aint%2520n10kai%2520%253D%25201%253B%250Afor%2520%28int%2520j%2520%253D%25201%253B%2520j%2520%253C%253D%252010%253B%2520j%252B%252B%29%2520%257B%250A%2509n10kai%2520*%253D%2520j%253B%250A%257D\" style=\"width: 680px; height: 135px; border:0; transform: scale(1); overflow:hidden;\" sandbox=\"allow-scripts allow-same-origin\">\n<\/iframe>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <div>\u306e\u90e8\u5206\u3067\u3059\u3002<\/div>\n  <div>\u3053\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3060\u3068\u3001i \u304c 0 ~ 9 \u306e\u7bc4\u56f2\u3067\u9806\u306b 1 \u305a\u3064\u5897\u3048\u3066\u3044\u304f\u9593\u306b<\/div>\n  <div>\u4f55\u5ea6\u3082 10 \u306e\u968e\u4e57\u3092\u8a08\u7b97\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u52b9\u7387\u304c\u60aa\u3044\u3067\u3059\u3002<\/div>\n  <div>\u6700\u9069\u5316\u6848\u3068\u3057\u3066\u306f\u3001\u300c\u4e0a\u8a18\u306e\u90e8\u5206\u3092 for (int i = 0; i &lt; 10; i++) {} \u306e\u5916\u306b\u51fa\u3059\u300d\u3067\u3057\u3087\u3046\u304b\u3002<\/div>\n  <div>\u3053\u3093\u306a\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/div>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <iframe src=\"https:\/\/carbon.now.sh\/embed?bg=rgba%28171%2C+184%2C+195%2C+1%29&amp;t=seti&amp;wt=none&amp;l=auto&amp;width=680&amp;ds=false&amp;dsyoff=20px&amp;dsblur=68px&amp;wc=false&amp;wa=false&amp;pv=5px&amp;ph=5px&amp;ln=true&amp;fl=1&amp;fm=Hack&amp;fs=13px&amp;lh=150%25&amp;si=false&amp;es=2x&amp;wm=false&amp;code=%252F%252F%2520%25E6%259C%2580%25E9%2581%25A9%25E5%258C%2596%25E3%2581%25AE%25E7%25A2%25BA%25E8%25AA%258D%250A%252F%252F%252010%2520%25E3%2581%25AE%25E9%259A%258E%25E4%25B9%2597%25E3%2582%2592%25E8%25A8%2588%25E7%25AE%2597%250Aint%2520n10kai%2520%253D%25201%253B%250Afor%2520%28int%2520j%2520%253D%25201%253B%2520j%2520%253C%253D%252010%253B%2520j%252B%252B%29%2520%257B%250A%2509n10kai%2520*%253D%2520j%253B%250A%257D%250A%250A%252F%252F%2520i%2520%25E3%2581%25AB%252010%2520%25E3%2581%25AE%25E9%259A%258E%25E4%25B9%2597%25E3%2582%2592%25E6%258E%259B%25E3%2581%2591%25E3%2581%25A6%25E5%2587%25BA%25E5%258A%259B%250Afor%2520%28int%2520i%2520%253D%25200%253B%2520i%2520%253C%252010%253B%2520i%252B%252B%29%2520%257B%250A%2509int%2520n%2520%253D%2520i%2520*%2520n10kai%253B%250A%2509std%253A%253Acout%2520%253C%253C%2520n%2520%253C%253C%2520std%253A%253Aendl%253B%250A%257D\" style=\"width: 680px; height: 271px; border:0; transform: scale(1); overflow:hidden;\" sandbox=\"allow-scripts allow-same-origin\">\n<\/iframe>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <div>\u3053\u308c\u3067\u3042\u308c\u3070\u300110\u306e\u968e\u4e57\u306e\u8a08\u7b97\u3092\u6700\u521d\u306b\u4e00\u5ea6\u884c\u3046\u3060\u3051\u3067\u6e08\u307f\u307e\u3059\u306d\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u3067\u306f\u3001\u5b9f\u969b\u306b\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u6700\u9069\u5316\u3057\u3066\u3082\u3089\u3044\u307e\u3057\u3087\u3046\u3002<\/div>\n  <div>VisualStudio 2015 \u3067\u3001 \/O2 \u3067\u6700\u9069\u5316\u3057\u305f\u7d50\u679c\u3092\u9006\u30a2\u30bb\u30f3\u30d6\u30eb\u3067\u898b\u3066\u307f\u307e\u3059\u3002<\/div>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <img decoding=\"async\" alt=\"20220819-1.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-1.png\" width=\"100%\" height=\"100%\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/><\/div><div><br \/><\/div>\n<div><br \/><\/div>\n<div><br \/><\/div>\n<div><br \/><\/div>\n<div>\n  <div>\u6ce8\u76ee\u306f<\/div>\n  <div><br \/><\/div>\n  <div>\n    <img loading=\"lazy\" decoding=\"async\" alt=\"20220819-2.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-2.png\" width=\"239\" height=\"16\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/>\n  <\/div>\n  <div><br \/><\/div>\n  <div><br \/><\/div>\n  <div>\u306e\u90e8\u5206\u3067\u3059\u3002<\/div>\n  <div>\u30fb10 \u306e\u968e\u4e57\u3092\u4f55\u5ea6\u3082\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u7121\u3044\u3053\u3068<\/div>\n  <div>\u30fb\u3053\u306e\u8a08\u7b97\u7d50\u679c\u306f\u5e38\u306b\u5909\u308f\u3089\u306a\u3044\u3053\u3068<\/div>\n  <div>\u3092\u898b\u4e8b\u770b\u7834\u3057\u305f\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b<\/div>\n  <div><br \/><\/div>\n  <div>\n    <iframe src=\"https:\/\/carbon.now.sh\/embed?bg=rgba%28171%2C+184%2C+195%2C+1%29&amp;t=seti&amp;wt=none&amp;l=auto&amp;width=680&amp;ds=false&amp;dsyoff=20px&amp;dsblur=68px&amp;wc=false&amp;wa=false&amp;pv=5px&amp;ph=5px&amp;ln=true&amp;fl=1&amp;fm=Hack&amp;fs=13px&amp;lh=150%25&amp;si=false&amp;es=2x&amp;wm=false&amp;code=%252F%252F%252010%2520%25E3%2581%25AE%25E9%259A%258E%25E4%25B9%2597%25E3%2582%2592%25E8%25A8%2588%25E7%25AE%2597%250Aint%2520n10kai%2520%253D%25201%253B%250Afor%2520%28int%2520j%2520%253D%25201%253B%2520j%2520%253C%253D%252010%253B%2520j%252B%252B%29%2520%257B%250A%2509n10kai%2520*%253D%2520j%253B%250A%257D\" style=\"width: 680px; height: 135px; border:0; transform: scale(1); overflow:hidden;\" sandbox=\"allow-scripts allow-same-origin\">\n<\/iframe>\n  <\/div>\n  <div><br \/><\/div>\n  <div>\u306e\u90e8\u5206\u3092\u3042\u3089\u304b\u3058\u3081\u8a08\u7b97\u3057\u3066\u3057\u307e\u3044\u3001x375F00(10\u9032\u6570\u3067 3,628,800) \u3068\u3044\u3046\u6570\u5b57\u3092\u305d\u306e\u307e\u307e\u4f7f\u3063\u305f\u51e6\u7406\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/div>\n  <div>\u3053\u306e\u6570\u5b57\u3092\u4f7f\u3063\u3066\u3001\u51fa\u529b\u306b\u4f7f\u7528\u3059\u308b\u5909\u6570\u304c x229B600(10\u9032\u6570\u3067 36,288,000) \u306b\u306a\u308b\u307e\u3067\u90fd\u5ea6\u8db3\u3057\u3066\u306f\u51fa\u529b\u3059\u308b\u3001<\/div>\n  <div>\u3068\u3044\u3046\u5185\u5bb9\u306b\u6700\u9069\u5316\u3057\u305f\u3088\u3046\u3067\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u6700\u9069\u5316\u3057\u305f\u7d50\u679c\u3092\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306b\u76f4\u3057\u3066\u6bd4\u8f03\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002<\/div>\n  <div><br \/><\/div>\n  <div style=\"margin-left:100px\">\u25cb\u6700\u9069\u5316\u524d<\/div>\n  <div>\n    <iframe src=\"https:\/\/carbon.now.sh\/embed?bg=rgba%28171%2C+184%2C+195%2C+1%29&amp;t=seti&amp;wt=none&amp;l=auto&amp;width=680&amp;ds=false&amp;dsyoff=20px&amp;dsblur=68px&amp;wc=false&amp;wa=false&amp;pv=5px&amp;ph=5px&amp;ln=true&amp;fl=1&amp;fm=Hack&amp;fs=13px&amp;lh=150%25&amp;si=false&amp;es=2x&amp;wm=false&amp;code=%252F%252F%2520%25E6%259C%2580%25E9%2581%25A9%25E5%258C%2596%25E3%2581%25AE%25E7%25A2%25BA%25E8%25AA%258D%250Afor%2520%28int%2520i%2520%253D%25200%253B%2520i%2520%253C%252010%253B%2520i%252B%252B%29%2520%257B%250A%2509%252F%252F%252010%2520%25E3%2581%25AE%25E9%259A%258E%25E4%25B9%2597%25E3%2582%2592%25E8%25A8%2588%25E7%25AE%2597%250A%2509int%2520n10kai%2520%253D%25201%253B%250A%2509for%2520%28int%2520j%2520%253D%25201%253B%2520j%2520%253C%253D%252010%253B%2520j%252B%252B%29%2520%257B%250A%2509%2509n10kai%2520*%253D%2520j%253B%250A%2509%257D%250A%250A%2509%252F%252F%2520i%2520%25E3%2581%25AB%252010%2520%25E3%2581%25AE%25E9%259A%258E%25E4%25B9%2597%25E3%2582%2592%25E6%258E%259B%25E3%2581%2591%25E3%2581%25A6%25E5%2587%25BA%25E5%258A%259B%250A%2509int%2520n%2520%253D%2520i%2520*%2520n10kai%253B%250A%2509std%253A%253Acout%2520%253C%253C%2520n%2520%253C%253C%2520std%253A%253Aendl%253B%250A%257D\" style=\"width: 680px; height: 271px; border:0; transform: scale(1); overflow:hidden;\" sandbox=\"allow-scripts allow-same-origin\">\n<\/iframe>\n  <\/div>\n  <div><br \/><\/div>\n  <div style=\"margin-left:100px\">\u25cb\u6700\u9069\u5316\u5f8c<\/div>\n  <div>\n    <iframe src=\"https:\/\/carbon.now.sh\/embed?bg=rgba%28171%2C+184%2C+195%2C+1%29&amp;t=seti&amp;wt=none&amp;l=auto&amp;width=680&amp;ds=false&amp;dsyoff=20px&amp;dsblur=68px&amp;wc=false&amp;wa=false&amp;pv=5px&amp;ph=5px&amp;ln=true&amp;fl=1&amp;fm=Hack&amp;fs=13px&amp;lh=150%25&amp;si=false&amp;es=2x&amp;wm=false&amp;code=int%2520n%2520%253D%25200%253B%250Awhile%2520%28n%2520%253C%252036288000%29%250A%257B%250A%2509std%253A%253Acout%2520%253C%253C%2520n%2520%253C%253C%2520std%253A%253Aendl%253B%250A%2509n%2520%252B%253D%25203628800%253B%250A%257D\" style=\"width: 680px; height: 154px; border:0; transform: scale(1); overflow:hidden;\" sandbox=\"allow-scripts allow-same-origin\">\n<\/iframe>\n  <\/div>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <div>\u3053\u3061\u3089\u304c\u60f3\u5b9a\u3057\u3066\u3044\u305f\u6700\u9069\u5316\u6848\u3088\u308a\u3082\u3001\u3055\u3089\u306b\u52b9\u7387\u304c\u826f\u3044\u3067\u3059\u306d\uff01<\/div>\n  <div><br \/><\/div>\n  <div>\u3053\u306e\u3088\u3046\u306b\u3001\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u306f\u3068\u3066\u3082\u8ce2\u3044\u3067\u3059\u3002<\/div>\n  <div>\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u6a5f\u80fd\u306f\u3069\u3093\u3069\u3093\u767a\u5c55\u3057\u3066\u304a\u308a\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u3042\u307e\u308a\u610f\u8b58\u305b\u305a\u3068\u3082<\/div>\n  <div>\u9ad8\u901f\u306b\u52d5\u4f5c\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u4f5c\u6210\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u3066\u3044\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u3055\u3066\u3001\u3088\u3046\u3084\u304f\u672c\u984c\u3067\u3059\u3002<\/div>\n  <div>\u4e0a\u306e\u4f8b\u3067\u793a\u3057\u305f\u901a\u308a\u3068\u3066\u3082\u8ce2\u3044\u6700\u9069\u5316\u6a5f\u80fd\u3067\u3059\u304c\u3001\u4e00\u65b9\u3067\u3001<\/div>\n  <div>\u3053\u306e\u6a5f\u80fd\u306b\u3088\u3063\u3066\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u610f\u56f3\u3057\u306a\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u3082\u3042\u308a\u3001\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/div>\n  <div>\u4eca\u56de\u306f\u3001\u305d\u306e1\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <iframe src=\"https:\/\/carbon.now.sh\/embed?bg=rgba%28171%2C+184%2C+195%2C+1%29&amp;t=seti&amp;wt=none&amp;l=auto&amp;width=680&amp;ds=false&amp;dsyoff=20px&amp;dsblur=68px&amp;wc=false&amp;wa=false&amp;pv=5px&amp;ph=5px&amp;ln=true&amp;fl=1&amp;fm=Hack&amp;fs=13px&amp;lh=150%25&amp;si=false&amp;es=2x&amp;wm=false&amp;code=char%2520g_pwd%255B5%255D%2520%253D%2520%2522abcd%2522%253B%250A%250Abool%2520GetPassword%28char*%2520p%29%250A%257B%250A%2509memcpy%28p%252C%2520g_pwd%252C%2520sizeof%28g_pwd%29%29%253B%250A%2509std%253A%253Acout%2520%253C%253C%2520p%2520%253C%253C%2520std%253A%253Aendl%253B%250A%2509return%2520true%253B%250A%257D%250A%250Aint%2520main%28%29%250A%257B%250A%2509char%2520pwd%255B5%255D%253B%250A%2509if%2520%28GetPassword%28pwd%29%29%2520%257B%250A%2509%2509%252F*%2520%25E3%2583%2591%25E3%2582%25B9%25E3%2583%25AF%25E3%2583%25BC%25E3%2583%2589%25E3%2581%25AE%25E6%25A4%259C%25E6%259F%25BB%25E3%2580%2581%25E3%2582%25BB%25E3%2582%25AD%25E3%2583%25A5%25E3%2582%25A2%25E3%2581%25AA%25E6%2593%258D%25E4%25BD%259C%25E3%2581%25AA%25E3%2581%25A9%2520*%252F%250A%2509%257D%250A%2509memset%28pwd%252C%25200%252C%2520sizeof%28pwd%29%29%253B%250A%250A%2509%252F*%25E4%25BD%2595%25E3%2581%258B%25E3%2581%2597%25E3%2582%2589%25E3%2581%25AE%25E6%2599%2582%25E9%2596%2593%25E3%2581%25AE%25E3%2581%258B%25E3%2581%258B%25E3%2582%258B%25E5%2587%25A6%25E7%2590%2586*%252F%250A%250A%2509return%25200%253B%250A%257D\" style=\"width: 680px; height: 447px; border:0; transform: scale(1); overflow:hidden;\" sandbox=\"allow-scripts allow-same-origin\">\n<\/iframe>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <div>\u30d1\u30b9\u30ef\u30fc\u30c9\u3092 char pwd \u306b\u4ee3\u5165\u3057\u3066\u64cd\u4f5c\u3057\u7d42\u308f\u3063\u305f\u5f8c\u3001<\/div>\n  <div>\u901f\u3084\u304b\u306b memset \u3067 0 \u521d\u671f\u5316\u3059\u308b\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/div>\n  <div>\u3044\u3064\u307e\u3067\u3082\u30e1\u30e2\u30ea\u4e0a\u306b\u6b8b\u5b58\u3057\u3066\u3044\u308b\u3053\u3068\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u30ea\u30b9\u30af\u304c\u3042\u308b\u305f\u3081\u306b\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u3055\u3066\u3001\u3053\u308c\u304c\u6700\u9069\u5316\u3055\u308c\u308b\u3068\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002<\/div>\n  <div>\u5148\u307b\u3069\u3068\u540c\u3058\u304f\u3001VisualStudio 2015 \u3067\u3001 \/O2 \u3067\u6700\u9069\u5316\u3057\u305f\u7d50\u679c\u3092\u9006\u30a2\u30bb\u30f3\u30d6\u30eb\u3067\u898b\u3066\u307f\u307e\u3059\u3002<\/div>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <img decoding=\"async\" alt=\"20220819-3.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-3.png\" width=\"100%\" height=\"100%\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/>\n<\/div>\n<div><br \/><\/div>\n<div>\n  <div>memset&nbsp; \u306e\u4e0b\u306b\u547d\u4ee4\u304c\u4f55\u3082\u3042\u308a\u307e\u305b\u3093\u3002<\/div>\n  <div>\u30e1\u30e2\u30ea\u3092\u8997\u3044\u3066\u307f\u308b\u3068\u3001return 0 \u307e\u3067\u8fbf\u308a\u3064\u3044\u3066\u3082\u5f53\u7136\u3001\u30d1\u30b9\u30ef\u30fc\u30c9(&#8220;abcd&#8221;)\u304c\u6b8b\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\n    <img decoding=\"async\" alt=\"20220819-4.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-4.png\" width=\"100%\" height=\"100%\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/>\n  <\/div>\n  <div><br \/><\/div>\n  <div>\u3053\u308c\u306f\u3069\u3046\u3044\u3046\u3053\u3068\u3067\u3057\u3087\u3046\u304b\u3002<\/div>\n  <div><br \/><\/div>\n  <div>pwd \u306f if (GetPassword(pwd)) {} \u4ee5\u964d\u4e00\u5207\u5229\u7528\u3055\u308c\u306a\u3044\u5909\u6570\u3067\u3059\u3002<\/div>\n  <div>\u30b3\u30f3\u30d1\u30a4\u30e9\u76ee\u7dda\u3067\u898b\u308c\u3070\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u7d42\u4e86\u3057\u305f\u3089\u52dd\u624b\u306b\u958b\u653e\u3055\u308c\u308b\u306e\u3060\u304b\u3089\u3001<\/div>\n  <div>\u4eca\u5f8c\u5229\u7528\u3055\u308c\u306a\u3044\u5909\u6570 pwd \u3092\u308f\u3056\u308f\u3056 0 \u521d\u671f\u5316\u3057\u306a\u304f\u3066\u3082\u826f\u3044\u306f\u305a\u3060\u3001\u3068\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/div>\n  <div>\u305d\u306e\u305f\u3081\u3001\u6700\u9069\u5316\u306b\u3088\u3063\u3066 memset~ \u306e\u4e00\u6587\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u305b\u305a\u306b\u30b9\u30ad\u30c3\u30d7\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u3053\u306e\u3088\u3046\u306b\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u306e\u610f\u56f3\u3057\u306a\u3044\u6700\u9069\u5316\u306b\u3088\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u30ea\u30b9\u30af\u306e\u3042\u308b<\/div>\n  <div>\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u308a\u3001\u60f3\u5b9a\u3057\u306a\u3044\u52d5\u4f5c\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308b\u306e\u3067\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u4eca\u56de\u306e\u4f8b\u306e\u56de\u907f\u7b56\u3068\u3057\u3066\u3001\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\n    <iframe src=\"https:\/\/carbon.now.sh\/embed?bg=rgba%28171%2C+184%2C+195%2C+1%29&amp;t=seti&amp;wt=none&amp;l=auto&amp;width=680&amp;ds=false&amp;dsyoff=20px&amp;dsblur=68px&amp;wc=false&amp;wa=false&amp;pv=5px&amp;ph=5px&amp;ln=true&amp;fl=1&amp;fm=Hack&amp;fs=13px&amp;lh=150%25&amp;si=false&amp;es=2x&amp;wm=false&amp;code=%252F%252F%2520%25E6%259C%2580%25E9%2581%25A9%25E5%258C%2596%25E3%2581%25AB%25E3%2582%2588%25E3%2581%25A3%25E3%2581%25A6%25E3%2580%2581%25E3%2583%25A1%25E3%2583%25A2%25E3%2583%25AA%25E4%25B8%258A%25E3%2581%25AE%25E5%2580%25A4%25E3%2581%258C%25E7%25A0%25B4%25E6%25A3%2584%25E3%2581%2595%25E3%2582%258C%25E3%2581%25AA%25E3%2581%2584%250Achar%2520pwd%255B5%255D%253B%250Aif%2520%28GetPassword%28pwd%29%29%2520%257B%250A%2509%252F*%2520%25E3%2583%2591%25E3%2582%25B9%25E3%2583%25AF%25E3%2583%25BC%25E3%2583%2589%25E3%2581%25AE%25E6%25A4%259C%25E6%259F%25BB%25E3%2580%2581%25E3%2582%25BB%25E3%2582%25AD%25E3%2583%25A5%25E3%2582%25A2%25E3%2581%25AA%25E6%2593%258D%25E4%25BD%259C%25E3%2581%25AA%25E3%2581%25A9%2520*%252F%250A%257D%250A%252F%252Fmemset%28pwd%252C%25200%252C%2520sizeof%28pwd%29%29%253B%250A%253A%253ASecureZeroMemory%28pwd%252C%2520sizeof%28pwd%29%29%253B\" style=\"width: 680px; height: 174px; border:0; transform: scale(1); overflow:hidden;\" sandbox=\"allow-scripts allow-same-origin\">\n    <\/iframe>\n  <\/div>\n  <div><br \/><\/div>\n  <div>\u6700\u9069\u5316\u7d50\u679c\u3092\u9006\u30a2\u30bb\u30f3\u30d6\u30eb\u3067\u898b\u3066\u307f\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\n    <img decoding=\"async\" alt=\"20220819-5.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-5.png\" width=\"100%\" height=\"100%\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/>\n  <\/div>\n  <div><br \/><\/div>\n  <div>\u4eca\u56de\u306f\u3061\u3083\u3093\u3068\u547d\u4ee4\u304c\u3042\u308a\u307e\u3059\u306d\u3002<\/div>\n  <div>\u30e1\u30e2\u30ea\u3092\u8997\u3044\u3066\u307f\u308b\u3068\u3001<\/div>\n  <div><br \/><\/div>\n  <div>\n    <img loading=\"lazy\" decoding=\"async\" alt=\"20220819-6.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-6.png\" width=\"274\" height=\"18\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/>\n  <\/div>\n  <div><br \/><\/div>\n  <div><br \/><\/div>\n  <div>\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u30011\u5909\u6570\u305a\u30640\u521d\u671f\u5316\u3055\u308c\u3066\u3044\u3063\u3066\u3044\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n    <img decoding=\"async\" alt=\"20220819-7.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-7.png\" width=\"100%\" height=\"100%\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/>\n  <div><br \/><\/div>\n  <div>\u2193<\/div>\n  <div><br \/><\/div>\n    <img decoding=\"async\" alt=\"20220819-8.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-8.png\" width=\"100%\" height=\"100%\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/>\n  <div><br \/><\/div>\n  <div><br \/><\/div>\n  <div>\u7121\u4e8b\u3001\u3059\u3079\u3066 0 \u521d\u671f\u5316\u3055\u308c\u307e\u3057\u305f\u3002<\/div>\n  <div><br \/><\/div>\n    <img decoding=\"async\" alt=\"20220819-9.png\" src=\"https:\/\/hitechs.co.jp\/blog\/2022\/08\/19\/20220819-9.png\" width=\"100%\" height=\"100%\" class=\"mt-image-left\" style=\"float: left; margin: 0 20px 20px 0;\" \/>\n  <div><br \/><\/div>\n  <div>Windows API \u306b\u306f\u3001\u6700\u9069\u5316\u306b\u3088\u3063\u3066\u30b9\u30ad\u30c3\u30d7\u3055\u308c\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b<\/div>\n  <div>ZeroMemory(), SecureZeroMemory() \u304c\u3042\u308a\u307e\u3059\u3002<\/div>\n  <div>\u3053\u308c\u3089\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u610f\u56f3\u3057\u306a\u3044\u30b9\u30ad\u30c3\u30d7\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u306b\u306f\u3001\u4ed6\u306b\u3082\u30d7\u30ed\u30b0\u30e9\u30de\u304c\u610f\u56f3\u3057\u306a\u3044\u7d50\u679c\u3092\u5f15\u304d\u8d77\u3053\u3059\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/div>\n  <div>\u4ed6\u306e\u4e8b\u4f8b\u306f\u6a5f\u4f1a\u304c\u3042\u308c\u3070\u307e\u305f\u3044\u305a\u308c\u3002<\/div>\n  <div><br \/><\/div>\n  <div>\u30cf\u30a4\u30c6\u30c3\u30af\u30b9\u3067\u306f\u3053\u306e\u3088\u3046\u306a\u4e8b\u4f8b\u3082\u8003\u616e\u3057\u3066\u3001\u65e5\u3005\u958b\u767a\u3092\u884c\u3063\u3066\u3044\u307e\u3059\uff01<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u307e\u3057\u3066\u3001\u5bcc\u5c71\u30aa\u30d5\u30a3\u30b9\u306e\u7530\u8ca1\u3067\u3059\u3002 \u79c1\u306f\u666e\u6bb5&nbsp; C++ \u3092\u5229\u7528\u3057\u3066\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u306e\u3067\u3001\u3053\u308c\u306b\u95a2\u9023\u3057\u305f\u30c6\u30fc\u30de\u306b\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 \u30c6\u30fc\u30de\u306f\u300cC\/C++ \u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u306b\u6ce8\u610f\u3059\u308b\u300d\u3067\u3059\u3002 \u307e\u305a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"template":"","format":"standard","blog_category":[6,17,18],"class_list":["post-46","blog","type-blog","status-publish","format-standard","hentry","blog_category-coding","blog_category-c_plusplus","blog_category-c"],"acf":[],"_links":{"self":[{"href":"https:\/\/hitechs.co.jp\/contents\/wp-json\/wp\/v2\/blog\/46","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hitechs.co.jp\/contents\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/hitechs.co.jp\/contents\/wp-json\/wp\/v2\/types\/blog"}],"author":[{"embeddable":true,"href":"https:\/\/hitechs.co.jp\/contents\/wp-json\/wp\/v2\/users\/2"}],"version-history":[{"count":1,"href":"https:\/\/hitechs.co.jp\/contents\/wp-json\/wp\/v2\/blog\/46\/revisions"}],"predecessor-version":[{"id":48,"href":"https:\/\/hitechs.co.jp\/contents\/wp-json\/wp\/v2\/blog\/46\/revisions\/48"}],"wp:attachment":[{"href":"https:\/\/hitechs.co.jp\/contents\/wp-json\/wp\/v2\/media?parent=46"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/hitechs.co.jp\/contents\/wp-json\/wp\/v2\/blog_category?post=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}