ReverseIterate

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References

template<typename RangeType>  
UE::Core::Private::TReverseIterationAdapter < RangeType > ReverseIterate  
(  
    RangeType && Range  
)  
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template<typename RangeType> UE::Core::Private::TReverseIterationAdapter < RangeType > ReverseIterate (     RangeType && Range )

Remarks

Allows a range to be iterated backwards. The container must not be modified during iteration, but elements may be. The container must outlive the adapter.

Example:

TArray Array = { 1, 2, 3, 4, 5 };

for (int& Element : ReverseIterate(Array)) { UE_LOG(LogTemp, Log, TEXT("%d"), Element); } // Logs: 5 4 3 2 1

TArray Output; Algo::Transform(ReverseIterate(Array), Output, UE_PROJECTION(LexToString)); // Output: [ "5", "4", "3", "2", "1" ] An adapter which allows reverse iteration over the range. The adapter is not intended to be handled directly, but rather as a parameter to an algorithm or ranged-for loop.

Parameters