{"id":3456,"date":"2024-10-08T09:33:00","date_gmt":"2024-10-08T00:33:00","guid":{"rendered":"http:\/\/43.203.250.216\/?p=3456"},"modified":"2024-10-05T23:35:17","modified_gmt":"2024-10-05T14:35:17","slug":"union%ec%9d%84-%ec%9d%b4%ec%9a%a9%ed%95%9c-byte-%eb%8b%a8%ec%9c%84-%ec%a0%91%ea%b7%bc","status":"publish","type":"post","link":"https:\/\/litcoder.com\/?p=3456","title":{"rendered":"Union\uc744 \uc774\uc6a9\ud55c byte \ub2e8\uc704 \uc811\uadfc"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Big-endian\uc73c\ub85c \uc8fc\uc5b4\uc9c4 byte\ub4e4\uc744 little-endian\uc73c\ub85c \ubcc0\ud658\ud574\uc57c \ud558\ub294 \ubb38\uc81c\uac00 \uc0dd\uacbc\ub2e4. Byte\ub4e4\uc758 order\ub97c \uac70\uafb8\ub85c \ub9cc\ub4dc\ub294 \uac83\uc740 \uc5b4\ub835\uc9c0 \uc54a\uc9c0\ub9cc \uadf8\ub7ec\uae30 \uc704\ud574\uc11c\ub294 byte pointer\uac00 \uac00\ub9ac\ud0a4\ub294 element\ub4e4\uc744 1 byte \ub2e8\uc704\ub85c \uc811\uadfc\ud574\uc57c \ud55c\ub2e4. 1 byte\uc529 \ub4a4\uc9d1\uc740 \ub2e4\uc74c\uc5d0\ub294 \ubcc0\ud658\ub41c array\ub97c \uc6d0\ud558\ub294 \ud06c\uae30\uc758 \ud0c0\uc785\uc73c\ub85c \uc77d\ub3c4\ub85d type casting\uc744 \ud574\uc8fc\uc5b4\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Union\uc744 \uc774\uc6a9\ud558\uba74 \ucf54\ub4dc\ub97c \ubabb\uc0dd\uae30\uac8c \ub9cc\ub4dc\ub294 pointer \uc9c1\uc811 \uc5f0\uc0b0\uc774\ub098 type casting\uc744 \ud558\uc9c0 \uc54a\uace0 \uc774\ub97c \uad6c\ud604\ud560 \uc218 \uc788\ub2e4. \uc989 union\uc740 \uc120\uc5b8\ub41c element\uc758 \uac00\uc7a5 \ud070 \ud06c\uae30 \ub9cc\ud07c\uc758 \uba54\ubaa8\ub9ac\uac00 \ud560\ub2f9 \ub418\ubbc0\ub85c \uac19\uc740 \ud06c\uae30\uc758 \ub450 element\ub97c \uc11c\ub85c \ub2e4\ub978 data type\uc73c\ub85c \uc120\uc5b8\ud558\ub294 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">union\n{\n  int32_t v;\n  uint8_t b[4];\n} value;<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704\uc640 \uac19\uc774 \uc120\uc5b8\ud558\uba74 value.v = 0xdeadbeef \uac19\uc740 \uc2dd\uc73c\ub85c int32\ub97c \uc4f0\uac70\ub098 \uc77d\uc744 \uc218 \uc788\uace0 value.b[0] \uac19\uc774 \uac01 \uba54\ubaa8\ub9ac index\uc5d0 \uc811\uadfc \ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Template\uc73c\ub85c \ub9cc\ub4e4\uc5b4\uc11c \uc5ec\ub7ec \ud0c0\uc785\uc5d0 \ub300\uc751 \ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"cpp\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">    template &lt;typename T> T readFromBigEndian(uint8_t *b)\n    {\n      union\n      {\n        T v;\n        uint8_t b[sizeof(T)];\n      } dest;\n\n      union\n      {\n        T v;\n        uint8_t *b;\n      } src;\n\n      src.b = b;\n      for (int i = 0; i &lt; sizeof(T); ++i)\n      {\n        dest.b[i] = src.b[sizeof(T) - i - 1];\n      }\n      return dest.v;\n    }<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Big-endian\uc73c\ub85c \uc8fc\uc5b4\uc9c4 byte\ub4e4\uc744 little-endian\uc73c\ub85c \ubcc0\ud658\ud574\uc57c \ud558\ub294 \ubb38\uc81c\uac00 \uc0dd\uacbc\ub2e4. Byte\ub4e4\uc758 order\ub97c \uac70\uafb8\ub85c \ub9cc\ub4dc\ub294 \uac83\uc740 \uc5b4\ub835\uc9c0 \uc54a\uc9c0\ub9cc \uadf8\ub7ec\uae30 \uc704\ud574\uc11c\ub294 byte pointer\uac00 \uac00\ub9ac\ud0a4\ub294 element\ub4e4\uc744 1 byte \ub2e8\uc704\ub85c \uc811\uadfc\ud574\uc57c \ud55c\ub2e4. 1 byte\uc529 \ub4a4\uc9d1\uc740 \ub2e4\uc74c\uc5d0\ub294 \ubcc0\ud658\ub41c array\ub97c \uc6d0\ud558\ub294 \ud06c\uae30\uc758 \ud0c0\uc785\uc73c\ub85c \uc77d\ub3c4\ub85d type casting\uc744 \ud574\uc8fc\uc5b4\uc57c \ud55c\ub2e4. Union\uc744 \uc774\uc6a9\ud558\uba74 \ucf54\ub4dc\ub97c \ubabb\uc0dd\uae30\uac8c \ub9cc\ub4dc\ub294 pointer \uc9c1\uc811 \uc5f0\uc0b0\uc774\ub098 type casting\uc744 \ud558\uc9c0 \uc54a\uace0 \uc774\ub97c \uad6c\ud604\ud560 \uc218 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[5],"tags":[336,247,334,310,335],"class_list":["post-3456","post","type-post","status-publish","format-standard","hentry","category-programming","tag-array","tag-c","tag-endian","tag-template","tag-union"],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":4374,"url":"https:\/\/litcoder.com\/?p=4374","url_meta":{"origin":3456,"position":0},"title":"Rust \ud504\ub85c\uadf8\ub798\ubc0d\uc5d0\uc11c map() \ud65c\uc6a9","author":"litcoder","date":"2026\ub144 5\uc6d4 13\uc77c","format":false,"excerpt":"Python\uc774 \uadf8\ub7ec\ud558\ub4ef Rust\ub3c4 declarative programming(\uc120\uc5b8\ud615 \ud504\ub85c\uadf8\ub798\ubc0d)\uc744 \uc9c0\uc6d0\ud55c\ub2e4. \uadf8 \uc911 map()\uc740 \uc774\ub7ec\ud55c \ucf54\ub529\uc2a4\ud0c0\uc77c\uc758 \ub300\ud45c\ucc98\ub7fc \uc0ac\uc6a9\ub418\uace0\ub294 \ud558\ub294\ub370, \uc774\uac83\uc744 \uc774\uc6a9\ud558\uba74 \uae38\uace0 \uc7a5\ud669\ud55c \ucf54\ub4dc\ub97c \uac04\uacb0\ud558\uac8c \ub098\ud0c0\ub0bc \uc218 \uc788\ub2e4. \uae30\ubcf8\uc801 \uc0ac\uc6a9\ubc95 1 \ubd80\ud130 10\uae4c\uc9c0 1\uc529 \uc99d\uac00\ud558\ub294 \uac12\uc744 \uac00\uc9c4 i32 \ud615\uc758 10\uce78\uc9dc\ub9ac \ubc30\uc5f4 arr\uc774 \uc788\ub2e4\uace0 \ud560 \ub54c, \uadf8 \uc548\uc5d0 \uc788\ub294 \uac01 \uc6d0\uc18c\ub4e4\uc5d0 2\ub97c \uacf1\ud558\ub294 \ucf54\ub4dc\uc774\ub2e4. \/\/\u2026","rel":"","context":"&quot;Programming&quot;\uc5d0\uc11c","block_context":{"text":"Programming","link":"https:\/\/litcoder.com\/?cat=5"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3208,"url":"https:\/\/litcoder.com\/?p=3208","url_meta":{"origin":3456,"position":1},"title":"C++ template \uc120\uc5b8\uacfc \uad6c\ud604\uc744 \uc11c\ub85c \ub2e4\ub978 \ud30c\uc77c\uc5d0 \ub098\ub20c \uc218 \uc5c6\ub2e4","author":"litcoder","date":"2023\ub144 3\uc6d4 6\uc77c","format":false,"excerpt":"\ucee4\uc2a4\ud140 Queue \ud074\ub798\uc2a4\ub97c \uc791\uc131\ud558\ub294\ub370 queue\uc758 item\uc740 \ucd94\ud6c4\uc5d0 \ubcc0\uacbd \ub420 \uc218 \uc788\uc73c\ubbc0\ub85c \ud15c\ud50c\ub9bf\uc73c\ub85c \uc791\uc131\ud558\uace0\uc790 \ud55c\ub2e4. Queue class\ub97c header\uc5d0 \uc815\uc758\ud558\uace0 \uad6c\ud604\uc744 cpp \ud30c\uc77c\uc5d0 \uc791\uc131\ud574 \uc900\ub2e4\uc74c main \ud568\uc218\uc5d0\uc11c \ub2e4\uc74c\uacfc \uac19\uc774 queue\ub97c \uc0dd\uc131\ud558\uace0 \ucef4\ud30c\uc77c\uc744 \uc2dc\ub3c4\ud55c\ub2e4. \ub2e4\uc74c\uc740 \ud574\ub2f9 template\uc744 \uc0ac\uc6a9\ud558\ub294 caller(main \ud568\uc218)\uc774\ub2e4. \/\/ \/\/ C++ template instantiation test. \/\/ \/\/ - litcoder #include <iostream> #include\u2026","rel":"","context":"&quot;Programming&quot;\uc5d0\uc11c","block_context":{"text":"Programming","link":"https:\/\/litcoder.com\/?cat=5"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1587,"url":"https:\/\/litcoder.com\/?p=1587","url_meta":{"origin":3456,"position":2},"title":"Heap sort (\ud799 \uc815\ub82c)","author":"litcoder","date":"2017\ub144 5\uc6d4 18\uc77c","format":false,"excerpt":"Heap sort\ub294 root node\uc5d0 \ud56d\uc0c1 \uc81c\uc77c \uc791\uc740 \uac12\uc774\ub098 \uc81c\uc77c \ud070 \uac12\uc774 \uc624\ub3c4\ub85d heap tree\ub97c \uad6c\uc131\ud574\uc11c \uc815\ub82c\ud558\ub294 \ubc29\ubc95\uc774\ub2e4. Heap tree\uc758 root\uc5d0 \ucd5c\uc18c\u00a0\uac12\uc774 \uc624\ub3c4\ub85d \uad6c\ud604\ud558\uba74 min heap tree, \ucd5c\ub300 \uac12\uc774 \uc624\ub3c4\ub85d \ud558\uba74 max heap tree\ub77c \ud55c\ub2e4. Heap tree\ub97c \uad6c\uc131\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574\uc11c\ub294 \ubcc4\ub3c4\uc758 \ud3ec\uc2a4\ud2b8\ub85c \ub2e4\ub8e8\uace0 \uc5ec\uae30\uc11c\ub294 max heap\uc73c\ub85c \uc624\ub984\ucc28\uc21c \uc815\ub82c\ud558\ub294 \uacfc\uc815\uc744 \uc124\uba85\ud55c\ub2e4. Heap\u2026","rel":"","context":"&quot;Programming&quot;\uc5d0\uc11c","block_context":{"text":"Programming","link":"https:\/\/litcoder.com\/?cat=5"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2017\/05\/heaptreeEX_rootswap2_1.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2017\/05\/heaptreeEX_rootswap2_1.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2017\/05\/heaptreeEX_rootswap2_1.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2017\/05\/heaptreeEX_rootswap2_1.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1606,"url":"https:\/\/litcoder.com\/?p=1606","url_meta":{"origin":3456,"position":3},"title":"Heap tree \ub9cc\ub4e4\uae30","author":"litcoder","date":"2017\ub144 7\uc6d4 2\uc77c","format":false,"excerpt":"Heap tree\ub294 \uc644\uc804\uc774\uc9c4\ud2b8\ub9ac \ud615\ud0dc\ub85c \ubaa8\ub4e0 \ubd80\ubaa8 \ub178\ub4dc\uc758 \uac12\uc774 \uc790\uc2dd \ub178\ub4dc \ubcf4\ub2e4 \ud06c\uac70\ub098 (max heap) \ubaa8\ub4e0 \ubd80\ubaa8 \ub178\ub4dc\uc758 \uac12\uc774 \uc790\uc2dd \ub178\ub4dc \ubcf4\ub2e4 \uc791\uc740 (min heap) tree\ub97c \ub9d0\ud55c\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 max heap tree\ub97c \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc744 \uc54c\uc544\ubcf8\ub2e4. Heap tree\ub97c \uc0dd\uc131\ud558\ub294 buildHeapTree()\uc774 \ub3d9\uc791\ud558\ub294 \uc808\ucc28\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4. N\uc740 \uc6d0\uc18c\uc758 \uac2f\uc218. \ubd80\ubaa8_\ub178\ub4dc := \uc18c\uc22b\uc810_\ubc84\ub9bc(N \/ 2)\u2026","rel":"","context":"&quot;Programming&quot;\uc5d0\uc11c","block_context":{"text":"Programming","link":"https:\/\/litcoder.com\/?cat=5"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2017\/05\/heaptreeEX_build_heap_subtreesE_2.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2017\/05\/heaptreeEX_build_heap_subtreesE_2.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2017\/05\/heaptreeEX_build_heap_subtreesE_2.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2017\/05\/heaptreeEX_build_heap_subtreesE_2.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":4025,"url":"https:\/\/litcoder.com\/?p=4025","url_meta":{"origin":3456,"position":4},"title":"OpenVINO Object Detection Model\uc758 \uc804\ucc98\ub9ac\uc640 \ud6c4\ucc98\ub9ac\ub97c \uac04\ub2e8\ud558\uac8c","author":"litcoder","date":"2026\ub144 1\uc6d4 28\uc77c","format":false,"excerpt":"AI model\ub4e4\uc740 \uc785\ucd9c\ub825 layer\uc758 \uad6c\uc870\uac00 \ub2e4\ub974\ubbc0\ub85c \uc11c\ub85c \ub2e4\ub978 pre\/post processing\uc744 \ud544\uc694\ub85c \ud55c\ub2e4. Vision model\uc744 \uc608\ub85c \ub4e4\uba74 \uc5b4\ub5a4 \ubaa8\ub378\uc740 \uc785\ub825\uc744 416x416\uc73c\ub85c \ubc1b\uac8c \ub418\uc5b4 \uc788\uc5b4\uc11c \uc785\ub825 \uc804\uc5d0 \uc6d0\ubcf8 \ud06c\uae30\ub85c \ubd80\ud130 resizing\uc744 \ud574\uc8fc\uc5b4\uc57c \ud558\uace0, \uc5b4\ub5a4 \ubaa8\ub378\uc740 resizing layer\uc744 \ud3ec\ud568\ud558\uace0 \uc788\uc5b4\uc11c \uadf8\ub0e5 \uc785\ub825\ud574\ub3c4 \uc798 \ub3d9\uc791\ud558\uae30\ub3c4 \ud55c\ub2e4. \ub610\ud55c \uc5b4\ub5a4 \ubaa8\ub378\uc740 \uc785\ub825\uac12\uc744 \uc815\uaddc\ud654 \ud574\uc11c \uc785\ub825\ud574 \uc8fc\uc5b4\uc57c\u2026","rel":"","context":"&quot;Programming&quot;\uc5d0\uc11c","block_context":{"text":"Programming","link":"https:\/\/litcoder.com\/?cat=5"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":220,"url":"https:\/\/litcoder.com\/?p=220","url_meta":{"origin":3456,"position":5},"title":"mpeg4ip-1.5.0.1\uc744 ubuntu 12.04\uc5d0\uc11c \ucef4\ud30c\uc77c \ud558\uae30 2 &#8211; \ud328\uce58 \ub0b4\uc6a9 \uc815\ub9ac","author":"litcoder","date":"2012\ub144 6\uc6d4 17\uc77c","format":false,"excerpt":"\ub2e4\uc74c\uc740 mpeg4ip\uac00 gcc\/g++ 4.4\uc5d0\uc11c \ube4c\ub4dc\ub418\ub3c4\ub85d \ud558\uae30 \uc704\ud574 \ube4c\ub4dc \uc624\ub958\ub97c \uc218\uc815\ud55c \ub0b4\uc5ed\uc5d0 \ub300\ud55c \uc124\uba85\uc774\ub2e4. \uc791\uc131\ub41c \ud328\uce58 \ubc0f \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc740 \"mpeg4ip-1.5.0.1\uc744 ubuntu 12.04\uc5d0\uc11c \ucef4\ud30c\uc77c \ud558\uae30 1\"\ub97c \ucc38\uace0. bootstrap script \uc218\uc815 bootstrap command\ub97c \uc218\ud589\ud558\uba74 configure\ub97c \uc218\ud589\ud574 \uc8fc\ub294\ub370 \ub2e4\uc74c\uacfc \uac19\uc740 \uc5d0\ub7ec\uac00 \ub098\uc628\ub2e4. mpeg4ip-1.5.0.1$ .\/bootstrap --disable-player dir: . SDL appears to be installed .\/bootstrap: 77:\u2026","rel":"","context":"&quot;Linux&quot;\uc5d0\uc11c","block_context":{"text":"Linux","link":"https:\/\/litcoder.com\/?cat=4"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/posts\/3456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/litcoder.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3456"}],"version-history":[{"count":4,"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/posts\/3456\/revisions"}],"predecessor-version":[{"id":3522,"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/posts\/3456\/revisions\/3522"}],"wp:attachment":[{"href":"https:\/\/litcoder.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/litcoder.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/litcoder.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}