[swift-evolution] Proposal: Implement == and < for tuples where possible, up to some high arity

[Brent Royal-Gordon]

> you can implement its < operator as simply "return (a1,b1,c1,d1,e1) < (a2,b2,c2,d2,e2)”.

	return zip([a1,b1,c1,d1,e1], [a2,b2,c2,d2,e2]).lazy.filter(==).first.flatMap(<) ?? false

Okay, so that wasn’t quite as easy as I thought when I started writing the email.

-- 
Brent Royal-Gordon
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