AnyOf.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "Algo/NoneOf.h"
#include "Templates/UnrealTemplate.h" // for MoveTemp
 
 
namespace Algo
{
    /**
     * Checks if any element in the range is truthy.
     *
     * @param  Range  The range to check.
     *
     * @return  true if at least one element is truthy, false otherwise.
     */
    template <typename RangeType>
    FORCEINLINE bool AnyOf(const RangeType& Range)
    {
        return !Algo::NoneOf(Range);
    }
 
    /**
     * Checks if any projection of the elements in the range is truthy.
     *
     * @param  Range       The range to check.
     * @param  Projection  The projection to apply to each element.
     *
     * @return  true if at least one projection is truthy, false otherwise.
     */
    template <typename RangeType, typename ProjectionType>
    FORCEINLINE bool AnyOf(const RangeType& Range, ProjectionType Projection)
    {
        return !Algo::NoneOf(Range, MoveTemp(Projection));
    }
 
    /**
     * Checks if any projection of the elements in the range is truthy.
     * Should be used when the range iterator doesn't return a reference.
     *
     * @param  Range       The range to check.
     * @param  Projection  The projection to apply to each element.
     *
     * @return  true if at least one projection is truthy, false otherwise.
     */
    template <typename RangeType, typename ProjectionType>
    FORCEINLINE bool AnyOf(const RangeType& Range, ProjectionType Projection, ENoRef NoRef)
    {
        return !Algo::NoneOf(Range, MoveTemp(Projection), NoRef);
    }
}