a) Show how the parameterised type Result declared below can be made into an instance of the Functor class, and explain your definition: data Result a = OK a | ERROR String deriving Show b) Show how Result can be made into an instance of the Applicative class, and illustrate your definition using two simple examples.

a) Show how the parameterised type Result declared below can be made into an instance of the Functor class, and explain your definition: data Result a = OK a | ERROR String deriving Show b) Show how Result can be made into an instance of the Applicative class, and illustrate your definition using two simple examples.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 15PE

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