Export (0) Print
Expand All

DerivedPatterns.Double Active Pattern (F#)

Recognizes constant 64-bit floating point number expressions.

Namespace/Module Path: Microsoft.FSharp.Quotations.DerivedPatterns

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

// Signature:
( |Double|_| ) : (input:Expr) -> float option


Type: Expr

The input expression to match against.

The result of a successful match is the float value.

This function is named DoublePattern in the .NET Framework assembly. If you are accessing the member from a .NET Framework language other than F#, or through reflection, use this name.

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

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

© 2015 Microsoft