{"id":498,"date":"2010-07-31T16:18:39","date_gmt":"2010-07-31T08:18:39","guid":{"rendered":"http:\/\/115.29.108.60\/?p=498"},"modified":"2011-09-26T21:54:06","modified_gmt":"2011-09-26T13:54:06","slug":"sizeof","status":"publish","type":"post","link":"http:\/\/115.29.108.60\/?p=498","title":{"rendered":"sizeof"},"content":{"rendered":"<p><a href=\"http:\/\/baike.baidu.com\/view\/1078660.htm?fr=ala0_1_1\" target=\"_blank\">sizeof\u767e\u5ea6\u767e\u79d1<\/a><br \/>\nsizeof\u4e5f\u53ef\u4ee5\u5bf9\u4e00\u4e2a\u51fd\u6570\u8c03\u7528\u6c42\u503c\uff0c\u5176\u7ed3\u679c\u662f\u51fd\u6570\u8fd4\u56de\u7c7b\u578b\u7684\u5927\u5c0f\uff0c\u51fd\u6570\u5e76\u4e0d\u4f1a\u88ab\u8c03\u7528\u3002<br \/>\nC99\u6807\u51c6\u89c4\u5b9a\uff0c\u51fd\u6570\uff08\u4e0d\u80fd\u6c42\u4e00\u4e2a\u8fd4\u56de\u7c7b\u578b\u4e3avoid\u7684\u51fd\u6570\u7684sizeof\u503c\uff09\u3001\u4e0d\u80fd\u786e\u5b9a\u7c7b\u578b\u7684\u8868\u8fbe\u5f0f\u4ee5\u53ca\u4f4d\u57df\u6210\u5458\u4e0d\u80fd\u88ab\u8ba1\u7b97sizeof\u503c\u3002<br \/>\n\u8ba9\u5bbd\u5ea6\u4e3a2\u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08short\u7b49\uff09\u90fd\u4f4d\u4e8e\u80fd\u88ab2\u6574\u9664\u7684\u5730\u5740\u4e0a\uff0c\u8ba9\u5bbd\u5ea6\u4e3a4\u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08int\u7b49\uff09\u90fd\u4f4d\u4e8e\u80fd\u88ab4\u6574\u9664\u7684\u5730\u5740\u4e0a\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<br \/>\n\u5b57\u8282\u5bf9\u9f50\u7684\u7ec6\u8282\u548c\u7f16\u8bd1\u5668\u5b9e\u73b0\u76f8\u5173\uff0c\u4f46\u4e00\u822c\u800c\u8a00\uff0c\u6ee1\u8db3\u4e09\u4e2a\u51c6\u5219\uff1a<br \/>\n1) \u7ed3\u6784\u4f53\u53d8\u91cf\u7684\u9996\u5730\u5740\u80fd\u591f\u88ab\u5176\u6700\u5bbd\u57fa\u672c\u7c7b\u578b\u6210\u5458\u7684\u5927\u5c0f\u6240\u6574\u9664\uff1b<br \/>\n2) \u7ed3\u6784\u4f53\u6bcf\u4e2a\u6210\u5458\u76f8\u5bf9\u4e8e\u7ed3\u6784\u4f53\u9996\u5730\u5740\u7684\u504f\u79fb\u91cf\uff08offset\uff09\u90fd\u662f\u6210\u5458\u5927\u5c0f\u7684\u6574\u6570\u500d\uff0c\u5982\u6709\u9700\u8981\u7f16\u8bd1\u5668\u4f1a\u5728\u6210\u5458\u4e4b\u95f4\u52a0\u4e0a\u586b\u5145\u5b57\u8282\uff08internal adding\uff09\uff1b<br \/>\n3) \u7ed3\u6784\u4f53\u7684\u603b\u5927\u5c0f\u4e3a\u7ed3\u6784\u4f53\u6700\u5bbd\u57fa\u672c\u7c7b\u578b\u6210\u5458\u5927\u5c0f\u7684\u6574\u6570\u500d\uff0c\u5982\u6709\u9700\u8981\u7f16\u8bd1\u5668\u4f1a\u5728\u6700\u672b\u4e00\u4e2a\u6210\u5458\u4e4b\u540e\u52a0\u4e0a\u586b\u5145\u5b57\u8282\uff08trailing padding\uff09\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>sizeof\u767e\u5ea6\u767e\u79d1 sizeof\u4e5f\u53ef\u4ee5\u5bf9\u4e00\u4e2a\u51fd\u6570\u8c03\u7528\u6c42\u503c\uff0c\u5176\u7ed3\u679c\u662f\u51fd\u6570\u8fd4\u56de\u7c7b\u578b\u7684\u5927\u5c0f\uff0c\u51fd\u6570\u5e76\u4e0d\u4f1a\u88ab\u8c03\u7528\u3002 C [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-498","post","type-post","status-publish","format-standard","hentry","category-cplusplus"],"_links":{"self":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/498","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=498"}],"version-history":[{"count":2,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/498\/revisions"}],"predecessor-version":[{"id":925,"href":"http:\/\/115.29.108.60\/index.php?rest_route=\/wp\/v2\/posts\/498\/revisions\/925"}],"wp:attachment":[{"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=498"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/115.29.108.60\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}