62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
/** @file IAllocIterator_Xfer.hpp
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*
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* @author Roland Conybeare, Dec 2025
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**/
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#pragma once
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#include "AAllocIterator.hpp"
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namespace xo {
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namespace mm {
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/** @class IAllocIterator_Xfer
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* @brief Adapts typed alloc iterator implementation
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* @tparam IAllocIterator_DRepr to type-erased
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* @ref AAllocIterator instance
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**/
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template <typename DRepr,
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typename IAllocIterator_DRepr>
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struct IAllocIterator_Xfer : public AAllocIterator {
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using Impl = IAllocIterator_DRepr;
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using typeseq = xo::reflect::typeseq;
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static const DRepr & _dcast(Copaque d) { return *(const DRepr *)d; }
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static DRepr & _dcast(Opaque d) { return *(DRepr *)d; }
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// from AAllocIterator
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// const methods
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typeseq _typeseq() const noexcept override { return s_typeseq; }
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AllocInfo deref(Copaque d)
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const noexcept override { return I::deref(_dcast(d)); }
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cmpresult compare(Copaque d,
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const obj_AAllocIterator & other)
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const noexcept override
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{ return I::compare(_dcast(d), other); }
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// non-const methods
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void next(Opaque d) const noexcept override { I::next(_dcast(d)); }
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private:
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using I = Impl;
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public:
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static typeseq s_typeseq;
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static bool _valid;
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};
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template <typename DRepr, typename IAllocIterator_DRepr>
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xo::reflect::typeseq
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IAllocIterator_Xfer<DRepr, IAllocIterator_DRepr>::s_typeseq
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= reflect::typeseq::id<DRepr>();
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template <typename DRepr, typename IAllocIterator_DRepr>
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bool
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IAllocIterator_Xfer<DRepr, IAllocIterator_DRepr>::_valid
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= facet::valid_facet_implementation<AAllocIterator, IAllocIterator_Xfer>();
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} /*namespace mm*/
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} /*namespace xo*/
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/* end IAllocIterator_Xfer.hpp */
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