C Program to Find Size of Variable

#include<stdio.h>
int main()
{
    int typeInteger;
    float typeFloat;
    double typeDouble;
    char typeChareter;

    // sizeof evaluates the size of a variable
    printf("Size of int: %ld bytes\n",sizeof(typeInteger));
    printf("Size of float: %ld bytes\n",sizeof(typeFloat));
    printf("Size of double: %ld bytes\n",sizeof(typeDouble));
    printf("Size of char: %ld bytes\n",sizeof(typeChareter));

    return 0;
}

Output

Size of int: 4 bytes
Size of float: 4 bytes
Size of double: 8 bytes
Size of char: 1 bytes