TOptional

When we have an optional value [IsSet()](API\Runtime\uLangCore\uLang\Common\Misc\TOptional\IsSet) returns true, and [GetValue()](API\Runtime\uLangCore\uLang\Common\Misc\TOptional\GetValue\1) is meaningful.

API > API/Runtime > API/Runtime/uLangCore > API/Runtime/uLangCore/uLang > API/Runtime/uLangCore/uLang/Common > API/Runtime/uLangCore/uLang/Common/Misc

Inheritance Hierarchy

References

   
Module uLangCore
Header /Engine/Source/Runtime/Solaris/uLangCore/Public/uLang/Common/Misc/Optional.h
Include #include "uLang/Common/Misc/Optional.h"

Syntax

template<typename OptionalType>  
struct TOptional

Remarks

When we have an optional value IsSet() returns true, and GetValue() is meaningful. Otherwise GetValue() is not meaningful.

Constructors

  Type Name Description
Public function  

TOptional ( const OptionalType& Value
)

 Construct an OptionaType with a valid value.
Public function  

TOptional ( OptionalType&& Value
)

  
Public function  

TOptional ( EResult Result
)

 Construct an OptionalType with no value; i.e. unset
Public function  

TOptional ( const TOptional& Value
)

 Copy/Move construction
Public function  

TOptional ( TOptional&& Value
)

  

Destructors

  Type Name Description
Public function    

Functions

  Type Name Description
Public function void

Emplace ( ArgsType&&... Args
)

  
Public function Const const OptionalType &

Get ( const OptionalType& DefaultValue
)

  
Public function Const ULANG_FORCEINLINEEResult  
Public function Const const OptionalType &  
Public function OptionalType &  
Public function Const ULANG_FORCEINLINE bool

IsSet ()

  
Public function void

Reset ()

  

Operators

  Type Name Description
Public function Const ULANG_FORCEINLINE  
Public function Const ULANG_FORCEINLINE  
Public function ULANG_FORCEINLINE  
Public function OptionalType &  
Public function Const const OptionalType &  
Public function TOptional &

operator= ( const TOptional& Value
)

  
Public function TOptional &

operator= ( TOptional&& Value
)

  
Public function TOptional &

operator= ( const OptionalType& Value
)

  
Public function TOptional &

operator= ( OptionalType&& Value
)

  
Public function Const const OptionalType *  
Public function OptionalType *  

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page