Iterable.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include <iterator>
 
namespace UE::Core::Iterable::Private
{
    using std::begin;
    using std::end;
 
    template <typename T>
    auto Begin(T&& Range) -> decltype(begin((T&&)Range));
 
    template <typename T>
    auto End(T&& Range) -> decltype(end((T&&)Range));
}
 
struct CIterable
{
    template <typename T>
    auto Requires(T&& Val) -> decltype(
        UE::Core::Iterable::Private::Begin((T&&)Val),
        UE::Core::Iterable::Private::End((T&&)Val)
    );
};