Question

You're given the type length = In of float | Cm of float. Write an OCaml...

You're given the type length = In of float | Cm of float. Write an OCaml function addlen(x,y) that adds two lengths. If x is in inches, the sum should be in inches; if x is in centimeters, the sum should be in centimeters.

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Homework Answers

Answer #1

Here is the complete OCaml Code for the addlen function. I have added comments for a better understanding of the same:

let addlen(x,y) = match (x,y) with

| (In(a), In(b)) -> In(a +. b) (* Answer is in Inches *)

| (In(a), Cm(b)) -> In(a +. (b /. 2.54)) (* Answer is in Inches *)

| (Cm(a), Cm(b)) -> Cm(a +. b) (* Answer is in cms *)

| (Cm(a), In(b)) -> Cm(a +. (b *. 2.54));; (* Answer is in cms *)

You can comment below the answer in case of any doubts and I will be happy to help.

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All the best!

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