typedef in C

Giving types shorter, clearer names.

typedef struct {
    char name[32];
    int score;
} Player;

typedef unsigned long ScoreID;

Player promote(Player p, int bonus) {
    p.score += bonus;
    return p;
}

How it works

1. An anonymous struct plus typedef names it Player.
2. typedef also aliases a plain type like unsigned long.
3. The alias reads like any other type.

Keywords and builtins used here

• char
• int
• long
• promote
• return
• struct
• typedef
• unsigned

The run, in numbers

Lines

11

Characters to type

153

Tokens

41

Three-star pace

95 tpm

At the three-star pace of 95 tokens a minute, this run takes about 26 seconds.

Type this snippet

Step 3 of 3 in Structs, step 21 of 25 in Pointers & memory.

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