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package traits
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Eq defines primitives for equivalence for type t
In order for a module to implement Eq, it has to conform to the T signature, which implies conformance to PartialEq.T. In fact, Eq builds on top of it and simplity denotes that in addition to symmetricity and transitivity properties, reflexivity property is to be observed (eq a a)
module type Trait = sig ... endEq implementation signature
module type T = sig ... endSignature that defines Eq conformity
Defines a default implementation of Trait over an existing PartialEq.Trait definition
val eq :
(module T
with type Eq.t = 'a
and type PartialEq.rhs = 'a0
and type PartialEq.t = 'a1) ->
'a2 ->
'a3 ->
boolTests x and y to be equal with a module M that implements signature T
val ne :
(module T with type PartialEq.rhs = 'a and type PartialEq.t = 'a0) ->
'a1 ->
'a2 ->
boolTests x and y to be unequal with a module M that implements signature T