{"id":1490,"date":"2022-03-13T18:04:41","date_gmt":"2022-03-13T09:04:41","guid":{"rendered":"https:\/\/blog.enyou.net\/ko\/?p=1490"},"modified":"2023-03-31T00:09:01","modified_gmt":"2023-03-30T15:09:01","slug":"swif","status":"publish","type":"post","link":"https:\/\/blog.enyou.net\/ko\/archives\/1490","title":{"rendered":"Swift\uc5d0\uc11c C \ud615\uc2dd\uc758 \ud3ec\uc778\ud130\ub97c \uc774\uc6a9\ud558\uc790, \uadf8\ub9ac\uace0 Unsafe\ub780?"},"content":{"rendered":"\n

\uc2a4\uc704\ud504\ud2b8 \uc5b8\uc5b4\uc5d0\uc11c\ub294 \uc624\ube0c\uc81d\ud2f0\ube0cC\uc640 C\uc5d0 \ub300\ud55c \ud638\ud658\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \uc0c1\ud638\uc6b4\uc6a9(interoperability)\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4. \uadf8\ub7f0\ub370, C \uacc4\uc5f4\uc758 \uc5b8\uc5b4\ub4e4\uc5d0\uc11c\ub294 \ud3ec\uc778\ud130\uac00 \uc790\uc8fc \uc0ac\uc6a9\ub418\uc9c0\ub9cc, Swift\uc5d0\uc11c\ub294 \uadf8\uac83\uacfc \uc0c1\uc751\ud558\ub294 \uac1c\ub150\uc774 \uc5c6\ub294 \uac83 \ucc98\ub7fc \ubcf4\uc785\ub2c8\ub2e4.1<\/a><\/sup>\ube44\uc2b7\ud55c \uac1c\ub150 \uc911 \ud558\ub098\ub294 inout\uc785\ub2c8\ub2e4. \ub2e4\ub9cc, inout\uc740 \uae30\ubcf8\uc801\uc73c\ub85c\ub294 copy-in, copy-out(\ud568\uc218\uc5d0 \uac12\uc744 \ubcf5\uc0ac\ud558\uc5ec \uc804\ub2ec \ud55c \ud6c4\uc5d0, \ud568\uc218\uac00 \uc885\ub8cc\ub420 \ub54c \ubcf5\uc0ac\ub41c \uac12\uc744 \uc6d0\ub798 \ubcc0\uc218\uc5d0 \ud560\ub2f9\ud568.)\uc774\uace0, \ucd5c\uc801\ud654\uc758 \uacb0\uacfc\ub85c \ud3ec\uc778\ud130\ucc98\ub7fc \ud589\ub3d9\ud569\ub2c8\ub2e4. \uc790\uc138\ud55c \ub0b4\uc5ed\uc740 https:\/\/docs.swift.org\/swift-book\/ReferenceManual\/Declarations.html#ID545<\/a> In-Out Parameters \ucc38\uc870<\/span><\/p>\n\n\n\n

\ub2e4\ud589\ud788\ub3c4, Swift\uc5d0\uc11c \ub2e4\uc74c\uacfc \uac19\uc740 Structure\ub97c \uc774\uc6a9\ud55c C\uc758 Pointer\uc5d0 \uc0ac\uc0c1\ub418\ub294 \uac1c\ub150\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 \ud3ec\uc778\ud130 \uad6c\uc870\uccb4\ub97c \uc5b4\ub5bb\uac8c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc744\uc9c0 \uac04\ub2e8\ud558\uac8c \uc54c\uc544\ubd05\ub2c8\ub2e4.<\/p>\n\n\n\n