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The Spring Engine (also termed SpringRTS and formerly TA Spring) is a game engine for real-time strategy (RTS) video games. The game engine is free and open-source software , subject to the terms of the GNU General Public License v2.0 or later .
This class allows assignments between any two objects. A copy of the key object is made before it is inserted into NSMutableDictionary , therefore the keys must conform to the NSCopying protocol. When being inserted to a dictionary, the value object receives a retain message to increase its reference count.
In mathematical terms, an associative array is a function with finite domain. [1] It supports 'lookup', 'remove', and 'insert' operations. The dictionary problem is the classic problem of designing efficient data structures that implement associative arrays. [2] The two major solutions to the dictionary problem are hash tables and search trees.
A class in C++ is a user-defined type or data structure declared with any of the keywords class, struct or union (the first two are collectively referred to as non-union classes) that has data and functions (also called member variables and member functions) as its members whose access is governed by the three access specifiers private, protected or public.
Application, scripting, text processing, Web Yes Yes Yes Yes Yes Yes No PHP: Server-side, web application, web Yes Yes [37] Yes [38] Yes No Yes De facto standard via language specification and Requests for Comments (RFCs) PL/I: Application Yes Yes No Yes No No Yes 1969, ECMA-50 (1976) Plus: Application, system development Yes No No Yes No No No ...
Also defined as deriving new classes (sub classes) from existing ones (super class or base class) and forming them into a hierarchy of classes. input/output (I/O) Also informally io or IO. The communication between an information processing system, such as a computer, and the outside world, possibly a human or another information processing system.
Classes may inherit from other classes, so they are arranged in a hierarchy that represents "is-a-type-of" relationships. For example, class Employee might inherit from class Person. All the data and methods available to the parent class also appear in the child class with the same names.
[26] [27] In C++, an abstract class is a class having at least one abstract method given by the appropriate syntax in that language (a pure virtual function in C++ parlance). [25] A class consisting of only pure virtual methods is called a pure abstract base class (or pure ABC) in C++ and is also known as an interface by users of the language. [13]