NullableOperators.( ?-? )<^T1,^T2,^T3> Function (F#)
The subtraction operator where a nullable value appears on both left and right sides.
Namespace/Module Path: Microsoft.FSharp.Linq.NullableOperators
Assembly: FSharp.Core (in FSharp.Core.dll)
// Signature:
( ?-? ) : Nullable<^T1> -> Nullable<^T2> -> Nullable<^T3> when ^T1 with static member (-) and ^T1 : (new : unit -> ^T1) and ^T1 : struct and ^T1 :> ValueType and ^T2 with static member (-) and ^T2 : (new : unit -> ^T2) and ^T2 : struct and ^T2 :> ValueType and ^T3 : (new : unit -> ^T3) and ^T3 : struct and ^T3 :> ValueType
// Usage:
nullableValue1 ?-? nullableValue2
Parameters
nullableValue1
Type: Nullable<^T1>The first input value, as a nullable value.
nullableValue2
Type: Nullable<^T2>The second input value, as a nullable vlue.
Return Value
The result of the subtraction, as a nullable value.
Remarks
If either of the values is null, then the result is null.
Platforms
Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2
Version Information
F# Core Library Versions
Supported in: 4.0, Portable