Switch Statements

int day = 3;
switch (day) {
    case 1:
        printf("Monday\n");
        break;
    case 2:
        printf("Tuesday\n");
        break;
    case 3:
        printf("Wednesday\n");
        break;
    default:
        printf("Unknown\n");
}

Common mistakes

• Forgetting break — execution falls through into the next case instead of stopping, one of C's most-cited sharp edges (occasionally used deliberately, but almost always a bug when accidental).