C - Basics




C Introduction - C Basics

  • C -Programming is a said to be the high-level structured oriented programming language , which is used generally for programming.
  • C -Programming is developed by Dennis Ritchie at AT & T Bell Telephone Laboratories, USA between the year of 1969 and 1973 .
C Introduction
Dennis Ritchie
Compiling Linking

C Program Structure - Definition and Usage

  • C - programming is the structure oriented Programming language in which the programs are compiled and run in a top down approach.
C Basic Structure

C Data type - Definition and Usage

  • Data types in C, specify how we enter data into our programs and what type of data we enter.
  • A Data Type is a Type of Data which has some storage format that can cover a Specific Type or Range of Values.
  • In C, computer program stores data in variables , & each variable must be assigned with the specific data type.
C Data type

C Primitive Data Types - Definition and Usage

  • The primitive data types in c language are the inbuilt data types provided by the c language itself .
  • Thus, all C compilers provide support for these data types. The Primitive Datatypes are as follows:
    • Integer Data Type (int)
    • Float data Type (float)
    • Double Data Type (double)
    • Character Data Type (char)
    • Void Data Type (void)
C Primitive Data Types

C Non Primitive Data Types - Definition and Usage

  • The data types that are derived from primary data types are known as non-Primitive data types.
  • The non-primitive datatypes are used to store group of values.
  • The non-primitive data types are :
C Non Primitive Data Types

C Constant - Definition and Usage

  • A constant is a value that never changes.
  • Constant in C means the content whose value does not change at the time of execution of a program.
  • Constants are also called literals.
  • It is considered as the best exercise to define constants using only upper-case names.
C Constants

Keywords in C - Definition and Usage

  • Keywords are part of the syntax and they cannot be used as an identifier.
  • Keywords are those words whose meaning is already defined by Compiler.
  • Keywords cannot be used as Variable Name.
  • There are 32 Keywords in C programming.
  • C Keywords are also called as Reserved words..
C Keywords

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