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  2. Visitor pattern - Wikipedia

    en.wikipedia.org/wiki/Visitor_pattern

    [3]: 288 For example, iteration over a directory structure could be implemented by a function class instead of more conventional loop pattern. This would allow deriving various useful information from directories content by implementing a visitor functionality for every item while reusing the iteration code. It's widely employed in Smalltalk ...

  3. Foreach loop - Wikipedia

    en.wikipedia.org/wiki/Foreach_loop

    The iteration form of the Eiffel loop can also be used as a boolean expression when the keyword loop is replaced by either all (effecting universal quantification) or some (effecting existential quantification). This iteration is a boolean expression which is true if all items in my_list have counts greater than three:

  4. Z-order curve - Wikipedia

    en.wikipedia.org/wiki/Z-order_curve

    The Z-ordering can be used to efficiently build a quadtree (2D) or octree (3D) for a set of points. [4] [5] The basic idea is to sort the input set according to Z-order.Once sorted, the points can either be stored in a binary search tree and used directly, which is called a linear quadtree, [6] or they can be used to build a pointer based quadtree.

  5. For loop - Wikipedia

    en.wikipedia.org/wiki/For_loop

    Iterating over a container is done using this form of loop: for e in c while w do # loop body od; The in c clause specifies the container, which may be a list, set, sum, product, unevaluated function, array, or object implementing an iterator. A for-loop may be terminated by od, end, or end do.

  6. List of game engines - Wikipedia

    en.wikipedia.org/wiki/List_of_game_engines

    The first game using Source 2, Dota 2, was ported over from the original Source engine. One of The Lab's minigame Robot Repair uses Source 2 engine while rest of seven uses Unity's engine. Spring: C++: C, C++, Java/JVM, Lua, Python: Yes 3D Windows, Linux, macOS: Balanced Annihilation, Zero-K: GPL-2.0-or-later: RTS, simulated events, OpenGL ...

  7. Python (programming language) - Wikipedia

    en.wikipedia.org/wiki/Python_(programming_language)

    Python 3.0, released in 2008, was a major revision not completely backward-compatible with earlier versions. Python 2.7.18, released in 2020, was the last release of Python 2. [37] Python consistently ranks as one of the most popular programming languages, and has gained widespread use in the machine learning community. [38] [39] [40] [41]

  8. Iterator pattern - Wikipedia

    en.wikipedia.org/wiki/Iterator_pattern

    In C++, a class can overload all of the pointer operations, so an iterator can be implemented that acts more or less like a pointer, complete with dereference, increment, and decrement. This has the advantage that C++ algorithms such as std::sort can immediately be applied to plain old memory buffers, and that there is no new syntax to learn ...

  9. Iterator - Wikipedia

    en.wikipedia.org/wiki/Iterator

    In computer programming, an iterator is an object that progressively provides access to each item of a collection, in order. [1] [2] [3]A collection may provide multiple iterators via its interface that provide items in different orders, such as forwards and backwards.