WAYS TO USE CONSTANT IN THE PROGRAMS

 2 WAYS TO USE CONSTANT IN THE PROGRAMS 

1. AS A PREDEFINED PRE-PROCESSOR 

INPUT

#include <stdio.h>

#define PI 3.14

int main()

{

   

    

    printf( "%f ", PI);

    return 0;

}

OUTPUT

3.140000

2. BY USING CONST. FUNCTION 

input

#include <stdio.h>

int main()

{

   

    const float a=3.14;

    printf( "%f ", a);

    return 0;

}

output

3.140000