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26 Mar, 2014 9:07 pm PDT

What is C language ?

WHAT IS C LANGUAGE ?

 

  • C language was developed at Bell Laboratories in 1972 by Dennis Ritchie

 

  • C language features were derived from earlier language called Basic CombinedProgramming Language – BCPL

 

  • C language was invented for implementing UNIX operating system

 

 

C standards

 

  • C89/C90 standard – First standardized specification for C language was developed by American National Standards Institute in 1989. C89 and C90 standards refer to the same programming language.

 

  • C99 standard – Next revision was published in 1999 that introduced new futures like advanced data types and other changes.

 

C11 and Embedded C

 

  • C11 standard adds new features to C and library like type generic macros, anonymous structures, improved Unicode support, atomic operations, multi-threading, and bounds-checked functions. It also makes some portions of the existing C99 library optional, and improves compatibility with C++.
  • Embedded C includes features not available in normal C like fixed-point arithmetic, named address spaces, and basic I/O hardware addressing

 

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