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  3. FVariant

FVariant

Implements an extensible union of multiple types.

API > API/Runtime > API/Runtime/Core > API/Runtime/Core/Misc

References

   
Module Core
Header /Engine/Source/Runtime/Core/Public/Misc/Variant.h
Include #include "Misc/Variant.h"

Syntax

class FVariant

Remarks

Implements an extensible union of multiple types.

Variant types can be used to store a range of different built-in types, as well as user defined types. The values are internally serialized into a byte array, which means that only FArchive serializable types are supported at this time.

Constructors

  Type Name Description
Public function   Default constructor.
Public function  

FVariant ( const FVariant&
)

  
Public function  

FVariant ( FVariant&& Other
)

  
Public function  

FVariant ( T InValue
)

 Creates and initializes a new instance with the specified value.
Public function  

FVariant ( TArray< uint8 >&& InArray
)

 Creates and initializes a new instance from a byte array.
Public function  

FVariant ( const TArray< uint8 >& InArray
)

  
Public function  

FVariant ( const TCHAR* InString
)

 Creates and initializes a new instance from a TCHAR string.

Destructors

  Type Name Description
Public function    

Functions

  Type Name Description
Public function void

Empty ()

 Empties the value.
Public function Const const TArray< uint8 > & Gets the stored value as a byte array.
Public function Const int32

GetSize ()

 Gets the stored value's size (in bytes).
Public function Const EVariantTypes

GetType ()

 Gets the stored value's type.
Public function Const T Gets the stored value.
Public function Const   Gets the stored value for byte arrays.
Public function Const bool

IsEmpty ()

 Checks whether the value is empty.

Operators

  Type Name Description
Public function Const   Implicit conversion operator.
Public function Const bool

operator!= ( const FVariant& Other
)

 Comparison operator for inequality.
Public function FVariant &

operator= ( const TArray< uint8 >& InArray
)

  
Public function FVariant &

operator= ( const FVariant&
)

  
Public function FVariant &

operator= ( FVariant&& Other
)

  
Public function FVariant &

operator= ( T InValue
)

 Assignment operator.
Public function FVariant &

operator= ( TArray< uint8 >&& InArray
)

 Assignment operator for byte arrays.
Public function FVariant &

operator= ( const TCHAR* InString
)

 Assignment operator for TCHAR strings.
Public function Const bool

operator== ( const FVariant& Other
)

 Comparison operator for equality.

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