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  2. Object copying - Wikipedia

    en.wikipedia.org/wiki/Object_copying

    One method of copying an object is the shallow copy.In that case a new object B is created, and the fields values of A are copied over to B. [3] [4] [5] This is also known as a field-by-field copy, [6] [7] [8] field-for-field copy, or field copy. [9]

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

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

    The rule of three (also known as the law of the big three or the big three) is a rule of thumb in C++ (prior to C++11) that claims that if a class defines any of the following then it should probably explicitly define all three: [1] destructor; copy constructor; copy assignment operator; These three functions are special member functions. If ...

  4. Immutable object - Wikipedia

    en.wikipedia.org/wiki/Immutable_object

    Making a shallow copy of a const or immutable value removes the outer layer of immutability: Copying an immutable string (immutable(char[])) returns a string (immutable(char)[]). The immutable pointer and length are being copied and the copies are mutable. The referred data has not been copied and keeps its qualifier, in the example immutable.

  5. 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.

  6. Costco's Healthiest Prepared Foods to Start the New Year Right

    www.aol.com/costcos-healthiest-prepared-foods...

    Smoothies. While not exactly a prepared meal, Costco members can get a lot of mileage and variety out of its 0% fat Greek yogurt and frozen fruits and greens.

  7. B-tree - Wikipedia

    en.wikipedia.org/wiki/B-tree

    Searching is similar to searching a binary search tree. Starting at the root, the tree is recursively traversed from top to bottom. At each level, the search reduces its field of view to the child pointer (subtree) whose range includes the search value. A subtree's range is defined by the values, or keys, contained in its parent node.

  8. Trump will not rule out force to take Panama Canal, Greenland

    www.aol.com/news/trump-wont-rule-military...

    U.S. President-elect Donald Trump refused on Tuesday to rule out using military or economic action to pursue acquisition of the Panama Canal and Greenland, part of a broader expansionist agenda he ...

  9. 3 Dividend-Paying Value Stocks to Buy Even If There's a Stock ...

    www.aol.com/3-dividend-paying-value-stocks...

    Image source: Getty Images. 1. Lockheed Martin. After its stock price reached an all-time high earlier this year, Lockheed Martin and its defense contractor peers have sold off considerably over ...