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IntrinsicFunctions.TypeTestFast<'T> Function (F#)

A compiler intrinsic that implements the :? operator

Namespace/Module Path: Microsoft.FSharp.Core.LanguagePrimitives.IntrinsicFunctions

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

// Signature:
TypeTestFast : obj -> bool

// Usage:
TypeTestFast source

Parameters

  • source
    Type: obj

    The object to test.

Return Value

true if the type matches the specified type; otherwise false.

Remarks

This function is for use by compiled F# code and should not be used directly.

Platforms

Windows 7, Windows Vista SP2, Windows XP SP3, Windows XP x64 SP2, Windows Server 2008 R2, Windows Server 2008 SP2, Windows Server 2003 SP2

Version Information

F# Runtime

Supported in: 2.0, 4.0

Silverlight

Supported in: 3

See Also

Reference

LanguagePrimitives.IntrinsicFunctions Module (F#)

Core.LanguagePrimitives Module (F#)