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  3. DeclVal

DeclVal

Equivalent to std::declval.

API > API/Runtime > API/Runtime/Core > API/Runtime/Core/Templates

References

   
Module Core
Header /Engine/Source/Runtime/Core/Public/Templates/UnrealTemplate.h
Include #include "Templates/UnrealTemplate.h" 
template<typename T>  
T && DeclVal()

Remarks

Equivalent to std::declval.

Note that this function is unimplemented, and is only intended to be used in unevaluated contexts, like sizeof and trait expressions.

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