Example of typedef in C

typedef long long ll;

Below is the C program to illustrate how to use typedef.

C

// C program to implement typedef
#include <stdio.h>
 
// defining an alias using typedef
typedef long long ll;
 
// Driver code
int main()
{
    // using typedef name to declare variable
    ll var = 20;
    printf("%ld", var);
 
    return 0;
}

Output

C typedef

The typedef is a keyword that is used to provide existing data types with a new name. The C typedef keyword is used to redefine the name of already existing data types.

When names of datatypes become difficult to use in programs, typedef is used with user-defined datatypes, which behave similarly to defining an alias for commands.

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C typedef Syntax

Use of typedef in C

Example of typedef in C

C

C typedef

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