C Programming Interview Questions and Answers, C Programming Test

C Programming interview questions and answers section for various interview, competitive examination and entrance test. Fully solved examples with detailed answer description, explanation are given and it would be easy to understand.

C Programming Interview Questions and Answers

  • The C Language Basics
  • Bits and Bytes
  • Preprocessors
  • Arrays
  • Data Files
  • Variables and Data Storage
  • Functions
  • Strings
  • Pointers
  • Standard Library Functions

C Programming

C is a general-purpose, high-level language that was originally developed by Dennis M. Ritchie to develop the UNIX operating system at Bell Labs. C was originally first implemented on the DEC PDP-11 computer in 1972.

In 1978, Brian Kernighan and Dennis Ritchie produced the first publicly available description of C, now known as the K&R standard.

The UNIX operating system, the C compiler, and essentially all UNIX application programs have been written in C. C has now become a widely used professional language for various reasons:

  • Easy to learn
  • Structured language
  • It produces efficient programs
  • It can handle low-level activities
  • It can be compiled on a variety of computer platforms

Why Use C?

C was initially used for system development work, particularly the programs that make-up the operating system. C was adopted as a system development language because it produces code that runs nearly as fast as the code written in assembly language. Some examples of the use of C might be:

  • Operating Systems
  • Language Compilers
  • Assemblers
  • Text Editors
  • Print Spoolers
  • Network Drivers
  • Modern Programs
  • Databases¬† L
  • anguage Interpreters
  • Utilities

C Programs

A C program can vary from 3 lines to millions of lines and it should be written into one or more text files with extension “.c”; for example, hello.c. You can use “vi”, “vim” or any other text editor to write your C program into a file.

This tutorial assumes that you know how to edit a text file and how to write source code inside a program file.

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