{"id":2138,"date":"2010-11-18T22:31:59","date_gmt":"2010-11-18T13:31:59","guid":{"rendered":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=2138"},"modified":"2010-11-18T22:31:59","modified_gmt":"2010-11-18T13:31:59","slug":"cc-%e3%81%ae-sizeof-%e3%81%ae%e4%b8%ad%e3%81%ab%e3%81%af%e5%89%af%e4%bd%9c%e7%94%a8%e3%81%ae%e3%81%82%e3%82%8b%e5%bc%8f%e3%82%82%e6%9b%b8%e3%81%91%e3%82%8b%e3%82%89%e3%81%97%e3%81%84","status":"publish","type":"post","link":"http:\/\/umezawa.dyndns.info\/wordpress\/?p=2138","title":{"rendered":"C\/C++ \u306e sizeof \u306e\u4e2d\u306b\u306f\u526f\u4f5c\u7528\u306e\u3042\u308b\u5f0f\u3082\u66f8\u3051\u308b\u3089\u3057\u3044"},"content":{"rendered":"<p>\u3044\u3064\u3082\u306e\u3088\u3046\u306b twitter \u3092\u773a\u3081\u3066\u3044\u305f\u3089\u3001sizeof(a++) \u3068\u3044\u3046\u6469\u8a36\u4e0d\u601d\u8b70\u306a\u5f0f\u304c\u3002<\/p>\n<p>\u3044\u3084\u307e\u3042\u3001sizeof \u306e\u4e2d\u306b\u578b\u540d\u3060\u3051\u3067\u306a\u304f\u5909\u6570\u540d\u3084\u69cb\u9020\u4f53\u306e\u30e1\u30f3\u30d0\u540d\u3082\u66f8\u3051\u308b\u3053\u3068\u306f\u77e5\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3002<\/p>\n<p><!--more--><\/p>\n<blockquote>\n<pre>D:\\&gt;type a.c\r\n#include <stdio .h>\r\n\r\nstruct hoge {\r\n        int foo;\r\n        char bar;\r\n};\r\n\r\nint main(void)\r\n{\r\n        struct hoge a;\r\n        printf(\"%d\\n%d\\n%d\\n\",\r\n            sizeof(struct hoge),\r\n            sizeof(a),\r\n            sizeof(a.foo));\r\n        return 0;\r\n}\r\nD:\\&gt;a.exe\r\n8\r\n4\r\n4\r\nD:\\&gt;<\/stdio><\/pre>\n<\/blockquote>\n<p>\u3067\u3001sizeof \u304c\u5f15\u6570\u3068\u3057\u3066\u53d6\u308b\u306e\u306f\u300c\u578b\u540d\u300d\u307e\u305f\u306f\u300c\u5f0f\u300d\u306a\u306e\u3067\u3001\u5f0f\u306a\u3089\u3070\u526f\u4f5c\u7528\u306e\u6709\u7121\u306b\u304b\u304b\u308f\u3089\u305a\u66f8\u3051\u3066\u3057\u307e\u3046\u308f\u3051\u3067\u3059\u3002<\/p>\n<blockquote>\n<pre>D:\\&gt;type b.c\r\n#include <stdio .h>\r\n\r\nint main(void)\r\n{\r\n        int a = 1;\r\n        printf(\"%d\\n\", a);\r\n        printf(\"%d\\n\", sizeof(a++));\r\n        printf(\"%d\\n\", a);\r\n        return 0;\r\n}\r\nD:\\&gt;b.exe\r\n1\r\n4\r\n1\r\nD:\\&gt;<\/stdio><\/pre>\n<\/blockquote>\n<p>\u5b9f\u969b\u306b\u8a66\u3057\u3066\u307f\u308b\u3068\u3001\u4e0a\u306e\u3088\u3046\u306b\u5f0f\u304c\u8868\u3059\u526f\u4f5c\u7528\u306f\u767a\u751f\u3057\u307e\u305b\u3093\u3002\u5358\u306b\u5f0f\u304c\u8868\u3059\u30e2\u30ce\u306e\u30b5\u30a4\u30ba\u3060\u3051\u3092\u8a08\u7b97\u3059\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>\u3060\u304b\u3089\u3069\u3046\u3057\u305f\u3001\u3063\u3066\u8a71\u3067\u3059\u3051\u3069\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3044\u3064\u3082\u306e\u3088\u3046\u306b twitter \u3092\u773a\u3081\u3066\u3044\u305f\u3089\u3001sizeof(a++) \u3068\u3044\u3046\u6469\u8a36\u4e0d\u601d\u8b70\u306a\u5f0f\u304c\u3002 \u3044\u3084\u307e\u3042\u3001sizeof \u306e\u4e2d\u306b\u578b\u540d\u3060\u3051\u3067\u306a\u304f\u5909\u6570\u540d\u3084\u69cb\u9020\u4f53\u306e\u30e1\u30f3\u30d0\u540d\u3082\u66f8\u3051\u308b\u3053\u3068\u306f\u77e5\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306b [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-2138","post","type-post","status-publish","format-standard","hentry","category-programming"],"_links":{"self":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2138","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2138"}],"version-history":[{"count":3,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2138\/revisions"}],"predecessor-version":[{"id":2141,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2138\/revisions\/2141"}],"wp:attachment":[{"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2138"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/umezawa.dyndns.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}