package traits

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package traits

traits
- Traits
  - Eq
    
    Make
    
    T
    
    T
    
    Eq
    
    PartialEq
    
    Trait
  - Int
    
    Eq
    
    Ord
    
    PartialEq
    
    PartialOrd
  - Option
    
    PartialEq
    
    PartialEq
    
    T
    
    PartialEq
    
    PartialEqSome
    
    PartialEq
    
    T
    
    PartialEq
  - Ord
    
    Make
    
    T
    
    T
    
    Eq
    
    Ord
    
    PartialEq
    
    Trait
  - Ordering
    
    Eq
    
    PartialEq
  - PartialEq
    
    Make
    
    T
    
    T
    
    PartialEq
    
    Trait
  - PartialOrd
    
    T
    
    PartialEq
    
    PartialOrd
    
    Trait

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Parameter
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Class type

type t

Type being compared

type rhs

Type being compared with

val eq : t -> rhs -> bool

Equality definition.

It must satisfy all of the following conditions:

Symmetry: if module A implements PartialEq and module B implements PartialEq, and A.PartialEq.t is equal to B.PartialEq.rhs and B.PartialEq.t is equal to A.PartialEq.rhs, then eq (module A) a b implies eq (module B) b a
Transitivity: if modules A, A', B and C all implement PartialEq, and A.PartialEq.rhs is equal to B.PartialEq.t, and B.PartialEq.rhs is equal to C.PartialEq.t, and A'.Partial.rhs is equal to c.PartialEq.t, then eq (module A) a b and eq (module B) b c implies eq (module A') a c

val ne : t -> rhs -> bool

Inequality definition. Must ensure that it is consistent with eq: ne x y if true if and only if not (eq x y)

In most cases, Traits.PartialEq.Make should be used to derive this function automatically. However, there may be cases where it may be more desirable (efficient, clear) to implement it manually.