Expand Minimize

NullableOperators.( ?+? )<^T1,^T2,^T3> Function (F#)

The addition 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

nullableValue1

Type: Nullable<T><^T1>

The first input value, as a nullable value.

nullableValue2

Type: Nullable<T><^T2>

The second input value, as a nullable value.

The sum of the two input values, as a nullable value.

If either of the values is null, the return value is null.

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

F# Core Library Versions

Supported in: 4.0, Portable

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft