default_accessor.h

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#pragma once
 
#include "di/meta/operations.h"
#include "di/types/prelude.h"
 
namespace di::vocab {
template<typename Element>
class DefaultAccessor {
public:
    using OffsetPolicy = DefaultAccessor;
    using ElementType = Element;
    using Reference = ElementType&;
    using DataHandle = ElementType*;
 
    DefaultAccessor() = default;
 
    template<concepts::ConvertibleToNonSlicing<Element> OtherElement>
    constexpr DefaultAccessor(DefaultAccessor<OtherElement>) {}
 
    constexpr auto access(DataHandle p, size_t i) const -> Reference { return p[i]; }
 
    constexpr auto offset(DataHandle p, size_t i) const -> DataHandle { return p + i; }
};
}
 
namespace di {
using vocab::DefaultAccessor;
}