Conditionals in C

Branching with if/else and the ternary operator.

const char *classify(int n) {
    if (n < 0)
        return "negative";
    else if (n == 0)
        return "zero";
    else
        return n % 2 == 0 ? "positive even" : "positive odd";
}

How it works

1. An if/else if/else ladder returns at the first match.
2. The ?: ternary chooses between two expressions.
3. Each branch returns a string literal.

Keywords and builtins used here

• char
• classify
• const
• else
• if
• int
• return

The run, in numbers

Lines

8

Characters to type

152

Tokens

51

Three-star pace

85 tpm

At the three-star pace of 85 tokens a minute, this run takes about 36 seconds.

Type this snippet

Step 2 of 7 in Operators & flow, step 9 of 35 in Language basics.

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Conditionals in other languages

• R