Core.NoComparisonAttribute Class (F#)
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Core.NoComparisonAttribute Class (F#)

Adding this attribute to a type indicates it is a type where comparison is an abnormal operation. This means that the type does not satisfy the F# comparison constraint. Within the bounds of the F# type system, this helps ensure that the F# generic comparison function is not instantiated directly at this type. The attribute and checking does not constrain the use of comparison with base or child types of this type.

Namespace/Module Path: Microsoft.FSharp.Core

Assembly: FSharp.Core (in FSharp.Core.dll)

[<AttributeUsage(AttributeTargets.Class ||| AttributeTargets.Interface ||| AttributeTargets.Delegate ||| AttributeTargets.Struct ||| AttributeTargets.Enum, AllowMultiple = false)>]
type NoComparisonAttribute =
  new NoComparisonAttribute : unit -> NoComparisonAttribute

You can also use the short form of the name, NoComparison.




Creates an instance of the attribute.

Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

© 2015 Microsoft