SizeVector.h

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// ----------------------------------------------------------------------------
// -                        Open3D: www.open3d.org                            -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2023 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
#include <cstddef>
#include <string>
#include <vector>
 
#include "open3d/core/SmallVector.h"
#include "open3d/utility/Optional.h"
 
namespace open3d {
namespace core {
 
class SizeVector;
 
class DynamicSizeVector : public SmallVector<utility::optional<int64_t>, 4> {
public:
    using super_t = SmallVector<utility::optional<int64_t>, 4>;
    DynamicSizeVector() {}
 
    DynamicSizeVector(
            const std::initializer_list<utility::optional<int64_t>>& dim_sizes);
 
    DynamicSizeVector(const std::vector<utility::optional<int64_t>>& dim_sizes);
 
    DynamicSizeVector(const DynamicSizeVector& other);
 
    explicit DynamicSizeVector(int64_t n, int64_t initial_value = 0);
 
    template <class InputIterator>
    DynamicSizeVector(InputIterator first, InputIterator last)
        : super_t(first, last) {}
 
    DynamicSizeVector(const SizeVector& dim_sizes);
 
    SizeVector ToSizeVector() const;
 
    DynamicSizeVector& operator=(const DynamicSizeVector& v);
 
    DynamicSizeVector& operator=(DynamicSizeVector&& v);
 
    std::string ToString() const;
 
    bool IsDynamic() const;
 
    // required for pybind
    void shrink_to_fit() {}
};
 
class SizeVector : public SmallVector<int64_t, 4> {
public:
    using super_t = SmallVector<int64_t, 4>;
    SizeVector() {}
 
    SizeVector(const std::initializer_list<int64_t>& dim_sizes);
 
    SizeVector(const std::vector<int64_t>& dim_sizes);
 
    SizeVector(const SizeVector& other);
 
    explicit SizeVector(int64_t n, int64_t initial_value = 0);
 
    template <class InputIterator>
    SizeVector(InputIterator first, InputIterator last)
        : super_t(first, last) {}
 
    SizeVector& operator=(const SizeVector& v);
 
    SizeVector& operator=(SizeVector&& v);
 
    int64_t NumElements() const;
 
    int64_t GetLength() const;
 
    std::string ToString() const;
 
    void AssertCompatible(const DynamicSizeVector& dsv,
                          const std::string msg = "") const;
 
    bool IsCompatible(const DynamicSizeVector& dsv) const;
 
    operator std::vector<int64_t>() const {
        return std::vector<int64_t>(begin(), end());
    }
 
    // required for pybind
    void shrink_to_fit() {}
};
 
}  // namespace core
}  // namespace open3d