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Monday, October 14, 2013

What is C language?


What is C language? 

Main features of C language:
  • C is a procedural programming language, not an object-oriented programming language. C programs are organized as modules and functions.
  • C supports low-level access to memory using address pointers. This makes C language a choice for implementing system software.
  • C supports array data structure with two ways to access array elements, indexes and pointers.
  • C supports dynamic memory allocation, which helps to reduce the size of object file generated by the compiler, and allow arrays to be declared with sizes determined at runtime.
  • C supports a large number of library routines for input/output operations, string manipulations, mathematical functions, etc.
  • C uses a header file to share declarations of variables and functions of a program module with other modules.
  • C does not do bounds checking on arrays. This often leads to un-desired behaviors during program execution.
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C is a general purpose programming language developed in 1972 by Dennis Ritchie at Bell Labs. Initially, there was no formal specification of C language. The book "The C Programming Language" by Brian Kernighan and Dennis Ritchie published in 1978 served as the informal specification for the first version of C language.
In 1989, American National Standards Institute (ANSI) established a standard specification of C language called: "ANSI X3.159-1989 - Programming Language C".
In 1999, a major revision of ANSI C specification was published by the International Organization for Standardization (ISO), "ISO/IEC 9899:1999 - Programming Languages - C".
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Bacis of the C Language Video :

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