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  2. Constant (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Constant_(computer...

    Dynamically valued constants originated as a language feature with ALGOL 68. [3] Studies of Ada and C++ code have shown that dynamically valued constants are used infrequently, typically for 1% or less of objects, when they could be used much more, as some 40–50% of local, non-class objects are actually invariant once created.

  3. const (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Const_(computer_programming)

    because the argument to f must be a variable integer, but i is a constant integer. This matching is a form of program correctness, and is known as const-correctness.This allows a form of programming by contract, where functions specify as part of their type signature whether they modify their arguments or not, and whether their return value is modifiable or not.

  4. Immutable object - Wikipedia

    en.wikipedia.org/wiki/Immutable_object

    In object-oriented (OO) and functional programming, an immutable object (unchangeable [1] object) is an object whose state cannot be modified after it is created. [2] This is in contrast to a mutable object (changeable object), which can be modified after it is created. [3]

  5. Enumerated type - Wikipedia

    en.wikipedia.org/wiki/Enumerated_type

    In fact, according to the language definition, the above code will define Clubs, Diamonds, Hearts, and Spades as constants of type int, which will only be converted (silently) to enum cardsuit if they are stored in a variable of that type. C also allows the programmer to choose the values of the enumeration constants explicitly, even without type.

  6. Naming convention (programming) - Wikipedia

    en.wikipedia.org/wiki/Naming_convention...

    Constants are usually defined by enum types or constant parameters that are also written this way. Class and other object type declarations are UpperCamelCase. As of Swift 3.0 there have been made clear naming guidelines for the language in an effort to standardise the API naming and declaration conventions across all third party APIs. [44]

  7. Python syntax and semantics - Wikipedia

    en.wikipedia.org/wiki/Python_syntax_and_semantics

    A snippet of Python code with keywords highlighted in bold yellow font. The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers). The Python language has many similarities to Perl, C, and Java. However, there are some ...

  8. Variable (computer science) - Wikipedia

    en.wikipedia.org/wiki/Variable_(computer_science)

    Depending on the type system of a programming language, variables may only be able to store a specified data type (e.g. integer or string). Alternatively, a datatype may be associated only with the current value, allowing a single variable to store anything supported by the programming language. Variables are the containers for storing the values.

  9. SWIG - Wikipedia

    en.wikipedia.org/wiki/SWIG

    The Simplified Wrapper and Interface Generator (SWIG) is an open-source software tool used to connect computer programs or libraries written in C or C++ with scripting languages such as Lua, Perl, PHP, Python, R, Ruby, Tcl, and other language implementations like C#, Java, JavaScript, Go, D, OCaml, Octave, Scilab and Scheme.