Re: [Haskell-cafe] Why Not Haskell?

Albert Lai wrote:

Let's have a fun quiz! Guess the mainstream languages in question:

Spoilers for the quiz

0. What language would allow

4["hello world"]

when a normal person would just write

"hello world"[4]

This is a classic C misfeature.

1. What language, supporting a kind of both parametric polymorphism and subclass polymorphism, allows and actually features such a class declaration as

class Enum { ... }

I have to guess here. Java.

2. What language allows you to test primality in constant runtime? That is, move all the work to compile time, using its polymorphism.

C++, also a classic feature. There are even books that discuss this technique, and I believe a SPJ paper referring to it.