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  2. Autovivification - Wikipedia

    en.wikipedia.org/wiki/Autovivification

    Perl 5.6.1 and newer support autovivification of file and directory handles. [3] Calling open() on an undefined variable will set it to a filehandle. According to perl561delta, "[t]his largely eliminates the need for typeglobs when opening filehandles that must be passed around, as in the following example:

  3. Cosmos DB - Wikipedia

    en.wikipedia.org/wiki/Cosmos_DB

    Containers can also enforce unique key constraints to ensure data integrity. [4] Each Cosmos DB container exposes a change feed, which clients can subscribe to in order to get notified of new items being added or updated in the container. [5] As of 7 June 2021, item deletions are currently not exposed by the change feed. Changes are persisted ...

  4. List of SQL reserved words - Wikipedia

    en.wikipedia.org/wiki/List_of_SQL_reserved_words

    Reserved words in SQL and related products In SQL:2023 [3] In IBM Db2 13 [4] In Mimer SQL 11.0 [5] In MySQL 8.0 [6] In Oracle Database 23c [7] In PostgreSQL 16 [1] In Microsoft SQL Server 2022 [2]

  5. Uninitialized variable - Wikipedia

    en.wikipedia.org/wiki/Uninitialized_variable

    Initialized does not mean correct if the value is a default one. (However, default initialization to 0 is a right practice for pointers and arrays of pointers, since it makes them invalid before they are actually initialized to their correct value.) In C, variables with static storage duration that are not initialized explicitly are initialized ...

  6. Dangling pointer - Wikipedia

    en.wikipedia.org/wiki/Dangling_pointer

    Some other techniques include the tombstones method and the locks-and-keys method. [3] Another approach is to use the Boehm garbage collector, a conservative garbage collector that replaces standard memory allocation functions in C and C++ with a garbage collector. This approach completely eliminates dangling pointer errors by disabling frees ...

  7. Monarch butterfly may gain threatened species status in US - AOL

    www.aol.com/news/monarch-butterfly-may-gain...

    KEY QUOTE "The iconic monarch butterfly is cherished across North America, captivating children and adults throughout its fascinating lifecycle," U.S. FWS Director Martha Williams said in a statement.

  8. List of computing and IT abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_computing_and_IT...

    RAID—Redundant Array of Independent Disks; RAII—Resource Acquisition Is Initialization; RAIT—Redundant Array of Inexpensive Tapes; RAM—Random-Access Memory; RARP—Reverse Address Resolution Protocol; RAS—Reliability, Availability and Serviceability; RAS—Remote access service; RC—Region Code; RC—Release Candidate; RC—Run Commands

  9. Man who attacked, then rescued, ex-wife hoped to be her hero

    www.aol.com/news/man-attacked-then-rescued-ex...

    Her assailant strangled her nearly unconscious twice. Morgan Metzer: It's the worst feeling in the world to think you're dying. And you feel like you're going to be tortured beforehand.