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  2. Object copying - Wikipedia

    en.wikipedia.org/wiki/Object_copying

    In VBA, an assignment of variables of type Object is a shallow copy, an assignment for all other types (numeric types, String, user defined types, arrays) is a deep copy. So the keyword Set for an assignment signals a shallow copy and the (optional) keyword Let signals a deep copy. There is no built-in method for deep copies of Objects in VBA.

  3. Rule of three (C++ programming) - Wikipedia

    en.wikipedia.org/wiki/Rule_of_three_(C++...

    Because implicitly-generated constructors and assignment operators simply copy all class data members ("shallow copy"), [4] one should define explicit copy constructors and copy assignment operators for classes that encapsulate complex data structures or have external references such as pointers, if you need to copy the objects pointed to by ...

  4. Copy constructor (C++) - Wikipedia

    en.wikipedia.org/wiki/Copy_constructor_(C++)

    Array's destructor deletes the data array of the original, therefore, when it deleted copy's data, because they share the same pointer, it also deleted first's data. Line (2) now accesses invalid data and writes to it. This produces a segmentation fault. If we write our own copy constructor that performs a deep copy then this problem goes away.

  5. Cloning (programming) - Wikipedia

    en.wikipedia.org/wiki/Cloning_(programming)

    int original = 42; int copy = 0; copy = original; Many OOP programming languages (including Java , D , ECMAScript , and C# ) make use of object references. Object references, which are similar to pointers in other languages, allow for objects to be passed around by address so that the whole object need not be copied.

  6. Copy elision - Wikipedia

    en.wikipedia.org/wiki/Copy_elision

    In C++ computer programming, copy elision refers to a compiler optimization technique that eliminates unnecessary copying of objects.. The C++ language standard generally allows implementations to perform any optimization, provided the resulting program's observable behavior is the same as if, i.e. pretending, the program were executed exactly as mandated by the standard.

  7. The peer-reviewed statistical analysis published in The Lancet journal was conducted by academics at the London School of Hygiene and Tropical Medicine, Yale University and other institutions.

  8. British Airways' new loyalty program will make it harder for ...

    www.aol.com/british-airways-loyalty-program...

    British Airways is overhauling its loyalty program to reward spending instead of miles flown. It will offer more chances to get points while making status harder to achieve for leisure travelers.

  9. Executable and Linkable Format - Wikipedia

    en.wikipedia.org/wiki/Executable_and_Linkable_Format

    An ELF file has two views: the program header shows the segments used at run time, whereas the section header lists the set of sections.. In computing, the Executable and Linkable Format [2] (ELF, formerly named Extensible Linking Format) is a common standard file format for executable files, object code, shared libraries, and core dumps.