Categories: Keyword in C language

Keywords in C programming language

Keywords in C programming language

In this tutorial we will learn about Keywords in C programming language

Key word in C language

C language have a set of keyword (approximately 32 keyword) to write and expand C program. This is also known as reserved words. It already have with pre-defined and can not be used to a variable or other identifier name

1. auto –auto is a keyword in C language,which is using to declares automatic variable in C programming language

2. break – break is a keyword any loop use to (for loop , while loop) and switch case statements which is used to stop the current execution

3. continue – Typically use continue keyword is while and do while loop and it is skipping the rest of the current statements and continue and perform nest iteration

4. switch  – switch  statement is used to executes a block of case  statements when expression is true or false

expression is true – return any one case statement

expression is false- return default statement

5. case – Case keyword is used to declare cases in switch statements

6. default  – This statement is used to switch case statement of when return false display default statements

7. char – the cher keyword use to declares a character variable

8. const – This keyword used to declares a constant in C language

9. do – it is used to looping statement – do-while loop

10. double– this keyword is used to declare floating type variable

11. float –  this keyword is used to declare floating type variable

12. if – if keyword is used to decision making with else keyword(optional)

13. else – else is a keyword using with if condition

14.enum  – enum keyword is used to declared enumeration type variable

15. extern –  extern keyword is used to indicates the present storage and initial value of variable or function(Externel linkage)

16. for – for is a keyword using looping statements used to for loop in C language –

17. goto – This keyword is used to jump of the flow of control from one to another

18. int – The int keyword used to declare integer type of variable

19. short – The short keyword is a type of modifier to declare type of value as short

20. long – The long keyword is a type of modifier to declare type of value as long

21. signed and unsigned – The long keyword is a type of modifier to declare type of value as signed and unsigned

22. return – It is used to returning a value current executing function immediately

23.sizeof – It is an operator to use know the size

24. register – The register keyword is used to declare a registor variable which are much faster than normal variable

25. static – static keyword is used to create a static object it may be applied to variable and function

26. struct – It is used in structure for grouping of data type in a single record like union

27. typedef – The typedef keyword is used to explicitly associate a type with an identifier

28. union – It is a collection of variables like struct , which is used to share the same memory location

29. void – Void is used as a retun type in a function, void means declared function does not return a value

30. volatile – The volatile keyword is used for creating volatile object

 

31. while – while keyword is most general used to looping statements. it returns a boolean value for execution

 

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