ValueRange.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "uLang/Common/Templates/References.h"
 
namespace uLang {
template <typename T>
struct TValueIterator
{
    TValueIterator& operator++()
    {
        ++_Value;
        return *this;
    }
 
    TValueIterator operator++(int)
    {
        TValueIterator result = *this;
        ++* this;
        return result;
    }
 
    T const& operator*() const
    {
        return _Value;
    }
 
    friend bool operator==(const TValueIterator& Left, const TValueIterator& Right)
    {
        return Left._Value == Right._Value;
    }
 
    friend bool operator!=(const TValueIterator& Left, const TValueIterator& Right)
    {
        return Left._Value != Right._Value;
    }
 
    T _Value;
};
 
template <typename T>
TValueIterator(T&&) -> TValueIterator<TDecayT<T>>;
 
template <typename T>
struct TUntil
{
    TValueIterator<T> begin() const
    {
        return TValueIterator{0};
    }
 
    TValueIterator<T> end() const
    {
        return TValueIterator{_Last};
    }
 
    T _Last;
};
 
template <typename T>
TUntil(T&&) -> TUntil<TDecayT<T>>;
}