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Reserved word. In a computer language, a reserved word (also known as a reserved identifier) is a word that cannot be used as an identifier, such as the name of a variable, function, or label – it is "reserved from use". This is a syntactic definition, and a reserved word may have no user-defined meaning.
In the C programming language, register is a reserved word (or keyword), type modifier, storage class, and hint. The register keyword was deprecated in C++, until it became reserved and unused in C++17. It suggests that the compiler stores a declared variable in a CPU register (or some other faster location) instead of in random-access memory ...
C ( pronounced / ˈsiː / – like the letter c) [6] is a general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, and ...
Static (keyword) In programming languages such as C, C++, Objective-C, and Java, static is a reserved word controlling both lifetime (as a static variable) and visibility (depending on linkage ). The effect of the keyword varies depending on the details of the specific programming language.
typedef is a reserved keyword in the programming languages C, C++, and Objective-C.It is used to create an additional name (alias) for another data type, but does not create a new type, except in the obscure case of a qualified typedef of an array type where the typedef qualifiers are transferred to the array element type.
In 1989, C++ 2.0 was released, followed by the updated second edition of The C++ Programming Language in 1991. New features in 2.0 included multiple inheritance, abstract classes, static member functions, const member functions, and protected members. In 1990, The Annotated C++ Reference Manual was published. This work became the basis for the ...
const (computer programming) In some programming languages, const is a type qualifier (a keyword applied to a data type ), which indicates that the data is read-only. While this can be used to declare constants, const in the C family of languages differs from similar constructs in other languages in that it is part of the type, and thus has ...
final (C++) final is a keyword in the C++ programming language. [1] It limits the ways in which a class can be subclassed. Subclasses of a class are prevented from overriding methods marked as final by the parent class. [2] [3] Final classes cannot be inherited. [3] This allows devirtualization, the removal of the use of vtables for method ...