Integer types

Learn int, short, long, long long and unsigned types.

C has several integer types. The most common ones:

The choice depends on how big a number you want to store. unsigned drops the negative side and doubles the positive side.

Type limits

Each integer type has minimum and maximum values it can store. The limits.h header defines these:

Exceeding the limit causes overflow and the result is undefined. Prefer long or long long when working with large numbers.

Declare a long big = 1000000L; and an unsigned int count = 50;. Print big with printf using %ld.

Show example solution

#include <stdio.h>

int main(void) {
    long big = 1000000L;
    unsigned int count = 50;
    printf("%ld", big);
    return 0;
}

Unsigned declaration

unsigned ____ count = 100;

Show answer

unsigned int count = 100;