dangling references 中文意思是什麼
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To avoid dangling pointers the dangerous situation where a block of memory is freed but a pointer still references it, you must delete the object only after the last reference is released
為了避免懸空指針（一種危險的情況，即一塊內存已經被釋放了，而一個指針還在引用它） ，必須在最後的引用釋放之後才刪除對象。 -
However, by dropping a synonym, you run the risk of leaving dangling references to the synonym that was dropped. these references will only be found at run time
但刪除同義詞后，會留下已刪除同義詞的無關聯引用，而只有在運行時才會發現這些引用。
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