TGuardValue | Unreal Engine 4.27 Documentation

Unreal Engine C++ API Reference > Runtime > Core > Templates

Inheritance Hierarchy

FNoncopyable
TGuardValue
FNiagaraParameterStore::FScopedSuppressOnChanged
FRigHierarchyControllerInstructionBracket
IConcertClientPackageBridge::FScopedIgnoreLocalDiscard
IConcertClientPackageBridge::FScopedIgnoreLocalSave
IConcertClientTransactionBridge::FScopedIgnoreLocalTransaction

References


Module	Core
Header	/Engine/Source/Runtime/Core/Public/Templates/UnrealTemplate.h
Include	#include "Templates/UnrealTemplate.h"

Syntax

template<typename RefType, typename AssignedType>  
struct TGuardValue : private FNoncopyable

Remarks

Exception-safe guard around saving/restoring a value. Commonly used to make sure a value is restored even if the code early outs in the future. Usage: TGuardValue GuardSomeBool(bSomeBool, false); // Sets bSomeBool to false, and restores it in dtor.

Constructors

	Type	Name	Description
		TGuardValue ( RefType& ReferenceValue, const AssignedType& NewValue )

Destructors

	Type	Name	Description
		~TGuardValue ()

Operators

	Type	Name	Description
	const AssignedType &	operator* ()	Overloaded dereference operator.

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