matc

Basic pattern matching in C

int x = 3;

match(x,
    (gt(20),  printf("GT 20!")),
    (lte(50), printf("LTE 50")),
    (true,    printf("NEITHER")),
);

int y =
match_exp(x,
    (in_range(5,10), 7),
    (gt(5),          5),
    (PAT < 20,       4),
    (true,           1),
);

By default offers the following pattern macros:

#define in_range(a, b)
#define gt(a)
#define gte(a)
#define lt(a)
#define lte(a)
#define equal(a)
#define divisible_by(a)

You can add your own pattern expression by using PAT like in the second example