{"id":2099,"date":"2014-12-01T10:22:09","date_gmt":"2014-12-01T01:22:09","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=2099"},"modified":"2017-01-31T19:42:06","modified_gmt":"2017-01-31T10:42:06","slug":"c11-%eb%9e%8c%eb%8b%a4lambda-%ed%91%9c%ed%98%84%ec%8b%9d","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=2099","title":{"rendered":"[C++11] \ub78c\ub2e4(Lambda) \ud45c\ud604\uc2dd"},"content":{"rendered":"<p><P>C++11\uc740 \ub78c\ub2e4 \ud45c\ud604\uc2dd \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc740 \ud568\uc218\ub97c \ubbf8\ub9ac \uc815\uc758\ud558\uc9c0 \uc54a\uace0 \ud544\uc694\ud55c \uc2dc\uc810\uc5d0\uc11c \uc0ac\uc6a9\ud558\uace0 \ubc14\ub85c \ubc84\ub9ac\ub294 \uac83\uc73c\ub85c \uc0dd\uac01\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub78c\ub2e4\uac00 \uc81c\uacf5\ub418\uae30 \uc774\uc804\uc5d0 \uc5b4\ub5a4 \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uace0\uc790 \ud588\ub2e4\uba74, \uadf8 \ud568\uc218\ub97c \ubbf8\ub9ac \uc815\uc758\ud558\uace0 \uc0ac\uc6a9\ud558\uac8c \ub429\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uace0 \ub09c \ub4a4\uc5d0 \uadf8 \ud568\uc218\ub294 \uacc4\uc18d \uc874\uc7ac\ud569\ub2c8\ub2e4.\uc544\ub798\ub294 \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc744 \uc774\uc6a9\ud574 \ub9cc\ub4e4\uc5b4\uc9c4 \ud568\uc218 \uc608\uc785\ub2c8\ub2e4.<\/P><\/p>\n<pre>\r\n#include \"stdafx.h\"\r\n#include <iostream>\r\n\r\nusing namespace std;\r\n\r\nint _tmain(int argc, _TCHAR* argv[])\r\n{\r\n    auto func = []() {\r\n        cout << \"Hello World\" << endl;\r\n    };\r\n\r\n    func();\r\n\r\n    return 0;\r\n}\r\n<\/pre>\n<p><P>8\ubc88 \ucf54\ub4dc\uc5d0\uc11c \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc744 \uc774\uc6a9\ud574 \ud568\uc218\ub97c \uc815\uc758\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc815\uc758\ub41c \ud568\uc218\ub294 \uc608\uc81c\ucc98\ub7fc \uc5b4\ub5a4 \ubcc0\uc218\uc5d0 \ud568\uc218\ub97c \ud560\ub2f9\ud574 \ub193\uace0 12\ubc88 \ucf54\ub4dc\uc5d0\uc11c \uc2e4\ud589\ud560 \uc218 \ub3c4 \uc788\uc9c0\ub9cc \uc5b4\ub5a4 \ubcc0\uc218\uc5d0 \ud560\ub2f9\ud558\uc9c0 \uc54a\uace0 \ubc14\ub85c \uc2e4\ud589\ud560 \uc218 \ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc989, \uc544\ub798\ucc98\ub7fc \ub9d0\uc785\ub2c8\ub2e4.<\/P><\/p>\n<pre>\r\n#include \"stdafx.h\"\r\n#include <iostream>\r\n\r\nusing namespace std;\r\n\r\nint _tmain(int argc, _TCHAR* argv[])\r\n{\r\n    []() {\r\n        cout << \"Hello World\" << endl;\r\n    }();\r\n\r\n    return 0;\r\n}\r\n<\/pre>\n<p><P>\uccab\ubc88\uc9f8 \uc608\uc81c\uc640\ub294 \ub2e4\ub974\uac8c \uc774 \ub450\ubc88\uc9f8 \uc608\uc81c\ub294 \ud544\uc694\ud55c \uc2dc\uc810\uc5d0 \ud568\uc218\ub97c \uc815\uc758\ud558\uace0 \ubc14\ub85c \uc2e4\ud589\ud558\uace0 \ud568\uc218\ub97c \ud3d0\uae30\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. 8\ubc88 \ucf54\ub4dc\uc5d0\uc11c \ubcf4\ub294 \uac83\ucc98\ub7fc \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc740 2\uac00\uc9c0\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. []\uacfc {}\uc774\uba70 []\ub294 \ub78c\ub2e4 \uc18c\uac1c\uc790(Lambda Introducer) \ub610\ub294 Capture Clause\ub77c\uace0 \ud558\uba70 {}\ub294 \ub78c\ub2e4 \ubab8\uccb4(Lambda Body)\uc785\ub2c8\ub2e4. \ub78c\ub2e4 \ubab8\uccb4\uc5d0 \ud568\uc218 \uad6c\ud604 \ucf54\ub4dc\uac00 \uc874\uc7ac\ud558\uba70 \ub78c\ub2e4 \uc18c\uac1c\uc790\uc5d0 \uc678\ubd80 \ubcc0\uc218\ub97c \uc5b4\ub5a4 \uc2dd\uc73c\ub85c \ucc38\uc870\ud560\uc9c0\uc5d0 \ub300\ud55c Capture \uc9c0\uc815\uc790\uacfc \ud568\uc218\uc5d0 \uc785\ub825\ub420 \uc778\uc790(Parameter) \ub9ac\uc2a4\ud2b8\uac00 \uc9c0\uc815\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc73c\ub85c \uc815\uc758\ud55c \ud568\uc218\uc758 \uc778\uc790\ub85c int\ub97c \ubc1b\uc544 \ucd9c\ub825\ud558\ub294 \ud568\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/P><\/p>\n<pre>\r\n#include \"stdafx.h\"\r\n#include <iostream>\r\n\r\nusing namespace std;\r\n\r\nint _tmain(int argc, _TCHAR* argv[])\r\n{\r\n    [](int a) {\r\n        cout << a << endl;\r\n    }();\r\n\r\n    return 0;\r\n}\r\n<\/pre>\n<p><P>\uc774\uc81c \ub78c\ub2e4 \ud568\uc218(\ub78c\ub2e4 \ud45c\ud604\uc2dd\uc73c\ub85c \uc815\uc758\ub41c \ud568\uc218)\uc5d0 \ub300\ud574 \uba87\uac00\uc9c0 \uc608\ub97c \ud1b5\ud574 \uc880\ub354 \uc815\ub9ac\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ucf54\ub4dc\ub97c \uc0b4\ud3b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/P><\/p>\n<pre>\r\n#include \"stdafx.h\"\r\n#include <iostream>\r\n#include <vector>\r\n#include <algorithm>\r\n\r\nusing namespace std;\r\n\r\nint _tmain(int argc, _TCHAR* argv[])\r\n{\r\n    vector<int> v { 1, 2, 3, 4, 5 };\r\n\r\n    for_each(v.begin(), v.end(), [](int v) {\r\n        cout << v << endl;\r\n    });\r\n\r\n    return 0;\r\n}\r\n<\/pre>\n<p><P>\uc704\uc758 \ucf54\ub4dc \uc911 12\ubc88\uc758 for_each \ud568\uc218\ub294 \ucee8\ud14c\uc774\ub108\uc758 \uac01 \uc694\uc18c\ub97c \uc778\uc790\ub85c \uc5b4\ub5a4 \ud568\uc218(\ub610\ub294 \ud568\uc218\uac1d\uccb4)\ub97c \ud638\ucd9c\ud558\ub294 \uac83\uc73c\ub85c for_each\uc758 \uc138\ubc88\uc9f8 \uc778\uc790\uac00 \ubc14\ub85c \ud638\ucd9c\ub418\ub294 \ud568\uc218(\ub610\ub294 \ud568\uc218\uac1d\uccb4)\uac00 \ub429\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ud638\ucd9c\ud560 \ud568\uc218\ub97c \ubbf8\ub9ac \uc815\uc758\ud574 \ub450\uc5b4\uc57c \ud558\ub098 \uc5ec\uae30\uc11c\ub294 \ub78c\ub2e4 \ud568\uc218\ub97c \uc774\uc6a9\ud574 \ubbf8\ub9ac \ud568\uc218\ub97c \uc815\uc758\ud558\uc9c0 \uc54a\uace0 \ud544\uc694\ud55c \uc2dc\uc810\uc5d0 \ud568\uc218\ub97c \uc815\uc758\ud558\uace0 \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \uc608\uc81c\ub97c \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/P><\/p>\n<pre>\r\n#include \"stdafx.h\"\r\n#include <iostream>\r\n#include <vector>\r\n#include <algorithm>\r\n\r\nusing namespace std;\r\n\r\nint _tmain(int argc, _TCHAR* argv[])\r\n{\r\n    vector<int> v { 1, 2, 3, 4, 5 };\r\n\r\n    auto it = find_if(v.begin(), v.end(), [](int v)->bool {\r\n        return (v % 2) == 1;\r\n    });\r\n\r\n    cout << *it << endl;\r\n\r\n    return 0;\r\n}\r\n<\/pre>\n<p><P>\uc704\uc758 \ucf54\ub4dc \uc911 12\ubc88\uc5d0 \uc788\ub294 find_if \ud568\uc218\ub294 \ucee8\ud14c\uc774\ub108\ub97c \uad6c\uc131\ud558\ub294 \uc694\uc18c \uc911 \uc5b4\ub5a4 \uc870\uac74\uc744 \ub9cc\uc871\ud558\ub294 \uccab\ubc88\uc9f8 \uc694\uc18c\uc758 \uac12\uc744 \ubc18\ud658\ud558\ub294 \ud568\uc218\uc778\ub370, \uc870\uac74\uc744 \uc9c0\uc815\ud558\uae30 \uc704\ud574 \ud568\uc218 \ub610\ub294 \ud568\uc218 \uac1d\uccb4\ub97c \uc138\ubc88\uc9f8 \uc778\uc790\uc5d0 \uc9c0\uc815\ub429\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \ub78c\ub2e4 \ud568\uc218\ub97c \ud1b5\ud574 \uc870\uac74 \ud568\uc218\uac00 \uc9c0\uc815\ub418\uc5c8\ub294\ub370 \uc774 \ud568\uc218\uc758 \ubc18\ud658 \ud0c0\uc785(Type)\uc744 \uc9c0\uc815\ud558\uae30 \uc704\ud574\uc11c ->bool\ub97c \uc0ac\uc6a9\ud568\uc73c\ub85c\uc368 \ubc18\ud658 \ud0c0\uc785\uc774 bool\uc774\ub77c\uace0 \uba85\uc2dc\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc5c4\uaca9\ud558\uac8c\ub294 \uc774 ->bool \ucf54\ub4dc\ub97c \uc0dd\ub7b5\ud560 \uc218 \uc788\ub294\ub370, \uc774\ub294 \ucef4\ud30c\uc77c\ub7ec\uac00 \uc774 \ub78c\ub2e4\ud568\uc218\uc758 \ubc18\ud658\ud0c0\uc785\uc744 \ucd94\ub860\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ucef4\ud30c\uc77c\ub7ec\uc758 \ucd94\ub860 \ub300\uc2e0 \uc9c1\uc811 \ubc18\ud658 \ud0c0\uc785\uc744 \uc54c\ub824\uc8fc\uae30 \uc704\ud574 ->(type) \uc5f0\uc0b0\uc790\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4\ub294 \uac83\uc5d0 \ub300\ud55c \uc608\uc81c\uc785\ub2c8\ub2e4.<\/P><\/p>\n<pre>\r\n#include \"stdafx.h\"\r\n#include <iostream>\r\n#include <vector>\r\n#include <algorithm>\r\n\r\nusing namespace std;\r\n\r\nint _tmain(int argc, _TCHAR* argv[])\r\n{\r\n    vector<int> v { 1, 2, 3, 4, 5 };\r\n    int sum = 0;\r\n\r\n    for_each(v.begin(), v.end(), [&](int v) {\r\n       if (v % 2 == 0) sum += v;\r\n    });\r\n    \r\n    cout << sum << endl;\r\n\r\n    return 0;\r\n}\r\n<\/pre>\n<p><P>\uc704 \ucf54\ub4dc \uc911 13\ubc88\uc758 \ub78c\ub2e4 \ud568\uc218\ub97c \ubcf4\uba74 []\uc5d0 \ud574\ub2f9\ud558\ub294 \ub78c\ub2e4\uc18c\uac1c\uc790\uc758 \ud615\ud0dc\uac00 [&]\ucc98\ub7fc \ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc774 [&]\uc758 \uc758\ubbf8\ub294 \ub78c\ub2e4 \ud568\uc218 \uc55e\ub2e8\uc5d0 \ubaa8\ub4e0(All) \uc678\ubd80 \ubcc0\uc218\ub97c \ucc38\uc870 \ud0c0\uc785(Reference Type)\uc73c\ub85c \uc7a1\uc544(Capture) \uc0ac\uc6a9\ud558\uaca0\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. \uc2e4\uc81c \ub78c\ub2e4 \ud568\uc218 \uad6c\ud604\ubd80\ub97c \ubcf4\uba74 \uc678\ubd80\uc5d0 \uc874\uc7ac\ud558\ub294 sum \ubcc0\uc218\ub97c \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ucc38\uc870 \ud615\ud0dc\ub85c \uc0ac\uc6a9\ud558\uaca0\ub2e4\uace0 \ud588\uc73c\ubbc0\ub85c \ub78c\ub2e4 \ud568\uc218 \ub0b4\ubd80\uc5d0\uc11c \ubcc0\uc218\uac12\uc744 \ubcc0\uacbd\ud558\uba74 \uc678\ubd80\uc5d0\uc11c\ub3c4 \ubcc0\uacbd\ub418\ub294 \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub78c\ub2e4 \uc18c\uac1c\uc790\uac00 []\uc77c \uacbd\uc6b0\uc5d0\ub294 \uc5b4\ub5a4\ud55c \uc678\ubd80 \ubcc0\uc218\ub3c4 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uaca0\ub2e4\ub294 \uc758\ubbf8\uc774\uba70 [&]\ub294 \ubaa8\ub4e0 \uc678\ubd80 \ubcc0\uc218\ub97c \ucc38\uc870\ub85c \uc0ac\uc6a9\ud558\uaca0\ub2e4\ub294 \uac83\uc774\uace0, [=]\ub294 \ubaa8\ub4e0 \uc678\ubd80 \ubcc0\uc218\ub97c \uc0c1\uc218\uac12(const)\uc73c\ub85c \uac12 \uc790\uccb4\ub97c \ubcf5\uc0ac(Copy)\ud558\uc5ec \uc0ac\uc6a9\ud558\uaca0\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. [&a]\ub294 \uc678\ubd80 \ubcc0\uc218 \uc911 a\ub9cc\uc744 \ucc38\uc870\uac12\uc73c\ub85c \uc0ac\uc6a9\ud558\uaca0\ub2e4\ub294 \uc758\ubbf8\uc774\uace0 [&a, =b]\ub294 a\ub294 \ucc38\uc870\uac12\uc73c\ub85c b\ub294 \uc0c1\uc218\uac12\uc73c\ub85c \uc0ac\uc6a9\ud558\uaca0\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4.<\/P><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C++11\uc740 \ub78c\ub2e4 \ud45c\ud604\uc2dd \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc740 \ud568\uc218\ub97c \ubbf8\ub9ac \uc815\uc758\ud558\uc9c0 \uc54a\uace0 \ud544\uc694\ud55c \uc2dc\uc810\uc5d0\uc11c \uc0ac\uc6a9\ud558\uace0 \ubc14\ub85c \ubc84\ub9ac\ub294 \uac83\uc73c\ub85c \uc0dd\uac01\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub78c\ub2e4\uac00 \uc81c\uacf5\ub418\uae30 \uc774\uc804\uc5d0 \uc5b4\ub5a4 \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uace0\uc790 \ud588\ub2e4\uba74, \uadf8 \ud568\uc218\ub97c \ubbf8\ub9ac \uc815\uc758\ud558\uace0 \uc0ac\uc6a9\ud558\uac8c \ub429\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uace0 \ub09c \ub4a4\uc5d0 \uadf8 \ud568\uc218\ub294 \uacc4\uc18d \uc874\uc7ac\ud569\ub2c8\ub2e4.\uc544\ub798\ub294 \ub78c\ub2e4 \ud45c\ud604\uc2dd\uc744 \uc774\uc6a9\ud574 \ub9cc\ub4e4\uc5b4\uc9c4 \ud568\uc218 \uc608\uc785\ub2c8\ub2e4. #include &#8220;stdafx.h&#8221; #include using namespace std; int _tmain(int argc, &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/www.gisdeveloper.co.kr\/?p=2099\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;[C++11] \ub78c\ub2e4(Lambda) \ud45c\ud604\uc2dd&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[117,8],"tags":[14],"class_list":["post-2099","post","type-post","status-publish","format-standard","hentry","category-cpp","category-programming","tag-c"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2099"}],"version-history":[{"count":1,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2099\/revisions"}],"predecessor-version":[{"id":2820,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2099\/revisions\/2820"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2099"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}