45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/** @file CVector.hpp
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*
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* @author Roland Conybeare, Nov 2025
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**/
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#pragma once
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#include "xo/alloc/IAlloc.hpp"
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#include <cstdint>
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namespace xo {
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namespace obj {
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/** gc-only vector.
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* Used in both LocalEnv and VsmStackFrame
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**/
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template <typename ElementType>
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class CVector {
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public:
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using value_type = ElementType;
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public:
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CVector(gc::IAlloc * mm, std::size_t n)
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: n_{n}, v_{nullptr}
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{
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if (n_ > 0) {
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std::byte * mem = mm->alloc(n_ * sizeof(ElementType));
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this->v_ = new (mem) ElementType[n];
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}
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}
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std::size_t size() const { return n_; }
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ElementType operator[](std::size_t i) const { return v_[i]; }
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ElementType & operator[](std::size_t i) { return v_[i]; }
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public:
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/** number of elements in @ref v_ **/
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std::size_t n_ = 0;
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/** contiguous array of pointers **/
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ElementType * v_ = nullptr;
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};
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} /*namespace obj*/
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} /*namespace xo*/
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/* end CVector.hpp */
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