C (programming language) wikipedia 相關
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C is an imperative procedural language, supporting structured programming, lexical variable scope, and recursion, with a static type system. It was designed to be compiled to provide low-level access to memory and language constructs that map efficiently to machine instructions, all with minimal runtime support.
The C Programming Language (sometimes termed K&R, after its authors' initials) is a computer programming book written by Brian Kernighan and Dennis Ritchie, the latter of whom originally designed and implemented the C programming language, as well as co-designed the Unix operating system with which development of the language was closely intertw...
- Brian W. Kernighan, Dennis M. Ritchie
- 1978
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The C-family programming languages share significant features of the C programming language. Many were developmentally influenced by C due to its success and ubiquity. The family also includes predecessors that influenced C's design such as BCPL. C-style
LanguageYear BegunCreated By (at)Brief Description, Relationship To C1993Dr. Patrick SteyaertA reflective, prototype-based, ...1995Phil Winterbottom (Bell Labs)Created for systems programming on the ...1993A combination of many features from ...1985Robert Fourer, David Gay and Brian ...An algebraic modeling language with ...In the C programming language, data types constitute the semantics and characteristics of storage of data elements. They are expressed in the language syntax in form of declarations for memory locations or variables. Data types also determine the types of operations or methods of processing of data elements.
The syntax of the C programming language is the set of rules governing writing of software in C. It is designed to allow for programs that are extremely terse, have a close relationship with the resulting object code, and yet provide relatively high-level data abstraction.
The C standard library or libc is the standard library for the C programming language, as specified in the ISO C standard. [1] . Starting from the original ANSI C standard, it was developed at the same time as the C library POSIX specification, which is a superset of it.
A programming language is a system of notation for writing computer programs. [1] Programming languages are described in terms of their syntax (form) and semantics (meaning), usually defined by a formal language. Languages usually provide features such as a type system, variables and mechanisms for error handling.
