pair
Lib.pair : 'a -> 'b -> 'a * 'b
Makes two values into a pair.
pair x y returns (x, y).
Failure
Never fails.
See also
Lib.rpair, Lib.swap,
Lib.fst, Lib.snd,
Lib.pair_of_list, Lib.triple,
Lib.quadruple, Lib.curry,
Lib.uncurry