Summary - Data types

Combine integer, floating-point and char types to write a calculation card.

In this group we covered the basic C data types:

Now solidify what you learned with two small tasks.

Exercise Print the size of char

Write a C program: print sizeof(char) with printf using %zu. The output should be 1.

Show example solution

#include <stdio.h>

int main(void) {
    printf("%zu", sizeof(char));
    return 0;
}

Write a C program: declare double pi = 3.14;, cast with (int) pi, and print it with printf and %d. The output should be 3.

Show example solution

#include <stdio.h>

int main(void) {
    double pi = 3.14;
    int i = (int) pi;
    printf("%d", i);
    return 0;
}