sizeof() operator example program

/*C program to print size of variables using sizeof() operator.*/
 
#include <stdio.h>
 
int main()
{
     
    char    a       ='A';           
    int     b       =120;
    float   c       =123.0f;
    double  d       =1222.90;
    char    str[]   ="Hello";
 
    printf("\nSize of a: %d",sizeof(a));
    printf("\nSize of b: %d",sizeof(b));
    printf("\nSize of c: %d",sizeof(c));
    printf("\nSize of d: %d",sizeof(d));
    printf("\nSize of str: %d",sizeof(str));
 
    return 0;
}

Output

    Size of a: 1
    Size of b: 4
    Size of c: 4
    Size of d: 8
    Size of str: 6