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Dangling pointers arise during object destruction, when an object that has an incoming reference is deleted or deallocated, without modifying the value of the pointer, so that the pointer still points to the memory location of the deallocated memory.
rm (short for remove) is a basic command on Unix and Unix-like operating systems used to remove objects such as computer files, directories and symbolic links from file systems and also special files such as device nodes, pipes and sockets, similar to the del command in MS-DOS, OS/2, and Microsoft Windows.
Deleted locations are treated as empty when inserting and as occupied during a search. The deleted locations are sometimes referred to as tombstones. [1] The problem with this scheme is that as the number of delete/insert operations increases, the cost of a successful search increases.
Shelve/unshelve: temporarily set aside part or all of the changes in the working directory; Rollback: remove a patch/revision from history; Cherry-picking: move only some revisions from a branch to another one (instead of merging the branches) Bisect: binary search of source history for a change that introduced or fixed a regression
File deletion is the removal of a file from a computer's file system.. All operating systems include commands for deleting files (rm on Unix and Linux, [1] era in CP/M and DR-DOS, del/erase in MS-DOS/PC DOS, DR-DOS, Microsoft Windows etc.).
Symmetrically, the immediate tasks performed by NTFS in a typical file deletion event, when deleting a hard link, are simply: removing the reference to the link from the directory file containing it (the root directory, if applicable); and decrementing by 1 the reference counts of the MFT record targeted by the link, and, of the entry ...
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In computer programming, create, read, update, and delete (CRUD) are the four basic operations (actions) of persistent storage. [1] CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information using computer-based forms and reports .