switch statements in C

Multi-way branching with fall-through cases.

int days_in_month(int month) {
    switch (month) {
        case 2:
            return 28;
        case 4: case 6: case 9: case 11:
            return 30;
        default:
            return 31;
    }
}

How it works

1. switch jumps to the matching case label.
2. Stacked labels share one body.
3. default handles everything else.

Keywords and builtins used here

• case
• days_in_month
• default
• int
• return
• switch

The run, in numbers

Lines

10

Characters to type

134

Tokens

40

Three-star pace

85 tpm

At the three-star pace of 85 tokens a minute, this run takes about 28 seconds.

Type this snippet

Step 5 of 7 in Operators & flow, step 12 of 35 in Language basics.

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