Keywords in c programming language

 💥 Keywords in C (In Detail)😍

🔸 What are Keywords?

• Keywords are reserved words in C
• They have predefined meaning
• Cannot be used as variable names
• Written only in lowercase

🔸 Total Keywords in C

• C has 32 keywords

🔸 List of Keywords with Explanation

🔹 Data Type Keywords

Keyword     Meaning

• int                Integer data type
• float            Decimal (floating point) number
• double        Double precision floating point
• char            Single character
• void            No value or empty

🔹 Storage Class Keywords

Keyword     Purpose

• auto              Default storage class
• register        Store variable in CPU register
• static            Retains value between function calls
• extern          Declares global variable

🔹 Control Statement Keywords

Keyword     Use

• if                   Conditional execution
• else              Alternative condition
• switch         Multiple condition selection
• case             Part of switch
• default        Executes if no case matches

🔹 Looping Keywords

Keyword      Use

• for                 Loop with initialization
• while            Loop with condition
• do                  Loop executes at least once
• break            Exit from loop
• continue      Skip current iteration

🔹 Function & Program Control

Keyword        Meaning

• return            Return value from function
• goto                Jump to labeled statement

🔹 Type Modifiers

Keyword        Meaning

• short             Smaller integer
• long              Larger integer
• signed          Allows negative values
• unsigned     Only positive values

🔹 User Defined Data Type Keywords

Keyword       Use

• struct           Structure
• union           Union
• enum           Enumeration
• typedef        Create alias name

🔹 Other Important Keywords

Keyword      Meaning

• sizeof           Size of data type
• const            Value cannot be changed
• volatile        Value can change anytime

🔸 Example Using Keywords

C

int main()

{

    static int a = 10;

    if(a > 5)

        return 0;

}