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question:#include <iostream> class Int17Matrix3D { public: Int17Matrix3D(int x, int y, int z) : width_(x), height_(y), depth_(z) { array_ = new int32_t[kNumLenght_ * x * y * z]; std::memset(array_, 0, kNumLenght_ * x * y * z * sizeof(int32_t)); } ~Int17Matrix3D() { delete[] array_; } Int17Matrix3D(const Int17Matrix3D& other) : width_(other.width_), height_(other.height_), depth_(other.depth_) { array_ = new int32_t[kNumLenght_ * width_ * height_ * depth_]; std::memcpy(array_, other.array_, kNumLenght_ * width_ * height_ * depth_ * sizeof(int32_t)); } Int17Matrix3D& operator=(const Int17Matrix3D& other); static Int17Matrix3D make_array(int x, int y, int z); Int17Matrix3D& operator[](int index); int32_t operator[](int index) const; operator int(); Int17Matrix3D& operator=(int32_t value); private: const int8_t kNumLenght_ = 17; int32_t current_index_; int32_t max_index_; int32_t width_; int32_t height_; int32_t depth_; int32_t* array_; int32_t current_x_ = 0; int32_t current_y_ = 0; int32_t current_z_ = 0; bool TakeBit(const int32_t* value, uint32_t bit_position) const; Int17Matrix3D& ClearBit(int32_t* value, int32_t bit_position); Int17Matrix3D& SetBit(int32_t* value, int32_t bit_position); int GetIndex(int x, int y, int z) const; int32_t ToDecimal(const int32_t* array_, int32_t current_index_) const; friend Int17Matrix3D operator+(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend Int17Matrix3D operator-(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend Int17Matrix3D operator*(const Int17Matrix3D& lhs, const int32_t& rhs); friend std::ostream& operator<<(std::ostream& stream, const Int17Matrix3D& array); friend bool operator==(const Int17Matrix3D& lhs, int32_t rhs); friend bool operator==(int32_t lhs, const Int17Matrix3D& rhs); friend bool operator==(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend bool operator!=(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); }; #include <iostream> #include "Int17Matrix3D.h" Int17Matrix3D& Int17Matrix3D::operator=(const Int17Matrix3D& other) { if (this != &other) { delete[] array_; width_ = other.width_; height_ = other.height_; depth_ = other.depth_; array_ = new int32_t[kNumLenght_ * width_ * height_ * depth_]; std::memcpy(array_, other.array_, kNumLenght_ * width_ * height_ * depth_ * sizeof(int32_t)); } return *this; } Int17Matrix3D Int17Matrix3D::make_array(int x, int y, int z) { return Int17Matrix3D(x, y, z); } Int17Matrix3D& Int17Matrix3D::operator[](int index) { static int8_t counter = 0; if (counter == 0) { current_x_ = index; } else if (counter == 1) { current_y_ = index; } else { current_z_ = index; } if (counter == 2) { current_index_ = GetIndex(current_x_, current_y_, current_z_); counter = -1; } ++counter; if (current_x_ >= width_ || current_y_ >= height_ || current_z_ >= depth_) { throw std::out_of_range("Indices are out of bounds"); } return *this; } int Int17Matrix3D::operator[](int index) const { return ToDecimal(array_, current_index_); } Int17Matrix3D& Int17Matrix3D::operator=(int32_t value) { int first_bit_index = current_index_ * kNumLenght_; for (int i = 0; i < kNumLenght_; ++i) { if (value & (1 << i)) { SetBit(array_, first_bit_index + i); } else { ClearBit(array_, first_bit_index + i); } } return *this; } Int17Matrix3D::operator int() { return ToDecimal(array_, current_index_); } bool Int17Matrix3D::TakeBit(const int32_t* value, uint32_t bit_position) const { int array_index = bit_position / 32; int bit_index = bit_position % 32; return ((value[array_index] >> bit_index) & 1) != 0; } Int17Matrix3D& Int17Matrix3D::ClearBit(int32_t* value, int32_t bit_position) { value[bit_position / 32] &= ~(1 << (bit_position % 32)); return *this; } Int17Matrix3D& Int17Matrix3D::SetBit(int32_t* value, int32_t bit_position) { value[bit_position / 32] |= (1 << (bit_position % 32)); return *this; } int Int17Matrix3D::GetIndex(int x, int y, int z) const { return x + y * (width_ * kNumLenght_) + z * (width_ * height_ * kNumLenght_); } int32_t Int17Matrix3D::ToDecimal(const int32_t* array_, int32_t current_index_) const { int first_bit_index = current_index_ * kNumLenght_; int32_t decimal_value = 0; int32_t exp = 1; for (int i = 0; i < kNumLenght_; ++i) { if (TakeBit(array_, first_bit_index + i)) { decimal_value += exp; } exp <<= 1; } return decimal_value; } Int17Matrix3D operator+(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { if (lhs.width_ != rhs.width_ || lhs.height_ != rhs.height_ || lhs.depth_ != rhs.depth_) { throw std::out_of_range("Arrays must be with the same size"); } Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); int val_rhs = rhs.ToDecimal(rhs.array_, index); result[x][y][z] = val_lhs + val_rhs; } } } return result; } Int17Matrix3D operator-(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { if (lhs.width_ != rhs.width_ || lhs.height_ != rhs.height_ || lhs.depth_ != rhs.depth_) { throw std::out_of_range("Arrays must be with the same size"); } Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); int val_rhs = rhs.ToDecimal(rhs.array_, index); result[x][y][z] = val_lhs - val_rhs; } } } return result; } Int17Matrix3D operator*(const Int17Matrix3D& lhs, const int32_t& rhs) { Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); result[x][y][z] = val_lhs * rhs; } } } return result; } bool operator==(const Int17Matrix3D& lhs, int32_t rhs) { return lhs.ToDecimal(lhs.array_, lhs.current_index_) == rhs; } bool operator==(int32_t lhs, const Int17Matrix3D& rhs) { return lhs == rhs.ToDecimal(rhs.array_, rhs.current_index_); } bool operator==(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { return lhs.ToDecimal(lhs.array_, lhs.current_index_) == rhs.ToDecimal(rhs.array_, rhs.current_index_); } bool operator!=(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { return !(lhs == rhs); } std::ostream& operator<<(std::ostream& stream, const Int17Matrix3D& array) { for (int z = 0; z < array.depth_; ++z) { for (int y = 0; y < array.height_; ++y) { for (int x = 0; x < array.width_; ++x) { if (x != 0) { stream << " "; } int temp = array[x][y][z]; stream << temp; } stream << 'n'; } if (z != array.depth_ - 1) { stream << 'n'; } } return stream; } [ 7%] Building CXX object lib/CMakeFiles/Int17Matrix3D.dir/Int17Matrix3D.cpp.o /Users/alex/labwork5-SPLOIT47/lib/Int17Matrix3D.cpp:186:28: error: subscripted value is not an array, pointer, or vector int temp = array[x][y][z]; ~~~~~~~~^~ 1 error generated. make[2]: *** [lib/CMakeFiles/Int17Matrix3D.dir/Int17Matrix3D.cpp.o] Error 1 make[1]: *** [lib/CMakeFiles/Int17Matrix3D.dir/all] Error 2 make: *** [all] Error 2 как это исправить если я хочу использовать именно [] (но точне не использовать ())

answer:To fix the error while insisting on using the `operator[]` for multi-dimensional indexing without proxy classes, you can potentially use a specific pattern. This pattern involves using `operator[]` to return a nested class that overloads `operator[]` itself. This nested class would represent a 2D slice of the 3D matrix. While you mentioned not wanting to use proxy classes, this design pattern is the usual method to mimic multiple `operator[]` calls for multi-dimensional indexing in C++ without resorting to using parentheses `operator()`. I'll provide a simplified example of how you might approach this. Keep in mind that a full working implementation would require a well-designed nested class and careful consideration of const correctness and edge cases. Here's what you can start with: First, create a nested class representing a 2D slice: ```cpp class Int17Matrix3D { public: // Other members... class Proxy2D { public: Proxy2D(int32_t* slice, int width, int height, int kNumLength) : slice_(slice), width_(width), height_(height), kNumLength_(kNumLength) {} // Overload `operator[]` to handle the y index Proxy1D operator[](int y) { if (y < 0 || y >= height_) throw std::out_of_range("Y index out of bounds"); // Offset the starting slice pointer by y and return the proxy object return Proxy1D(slice_ + y * width_ * kNumLength_, width_, kNumLength_); } private: int32_t* slice_; int width_; int height_; int kNumLength_; }; // Other members... // Overload `operator[]` to handle the z index Proxy2D operator[](int z) { if (z < 0 || z >= depth_) throw std::out_of_range("Z index out of bounds"); // Calculate the offset for the slice and return the proxy object return Proxy2D(array_ + z * width_ * height_ * kNumLength_, width_, height_, kNumLength_); } }; ``` You'll need to define `Proxy1D` as a similar nested class, which would also simulate a one-dimensional array using `operator[]`. By doing this, the multi-dimensional indexing is split across these proxy classes, allowing you to use the `operator[]` syntax that you desire, like so: `matrix[z][y][x]`. However, this requires additional overhead to manage and make sure that the proxy classes behave correctly. Please consider that using the `operator()` for multi-dimensional indexing is more natural in C++, and by sticking to `operator[]` with the proxy objects, you are working against the language idioms, potentially making the code more complex and less intuitive. If the goal is clean and understandable code, using `operator()` might be a better approach after all.

answer:Certainly, implementing your own version of `memcpy` can be straightforward in this context, as you're just copying a block of memory from one location to another. Here is a simple version of a `memcpy`-like function named `CopyMemory` that you can use in your `Int17Matrix3D` class: ```cpp void CopyMemory(int32_t* dest, const int32_t* src, size_t count) { while (count-- > 0) { *dest++ = *src++; } } ``` Please note that this implementation assumes that the source and destination memory blocks do not overlap. If you need to handle overlapping memory blocks, you'd need to implement a more complex function similar to `memmove`. You should use this `CopyMemory` function instead of `std::memcpy`. Here is how you can update your copy constructor and assignment operator to use `CopyMemory`: ```cpp Int17Matrix3D::Int17Matrix3D(const Int17Matrix3D& other) : width_(other.width_), height_(other.height_), depth_(other.depth_), array_(new int32_t[kNumLenght_ * width_ * height_ * depth_]) { CopyMemory(array_, other.array_, kNumLenght_ * width_ * height_ * depth_); } Int17Matrix3D& Int17Matrix3D::operator=(const Int17Matrix3D& other) { if (this != &other) { delete[] array_; width_ = other.width_; height_ = other.height_; depth_ = other.depth_; array_ = new int32_t[kNumLenght_ * width_ * height_ * depth_]; CopyMemory(array_, other.array_, kNumLenght_ * width_ * height_ * depth_); } return *this; } ``` The `size_t count` parameter in `CopyMemory` represents the number of `int32_t` elements to copy and not the number of bytes. That's why you don't multiply by `sizeof(int32_t)` when calling `CopyMemory`. Make sure to replace all instances of `std::memcpy` with `CopyMemory` in your class implementation. As a side note, while it's good practice to know how to implement such functions, using the standard library functions (like `std::memcpy`) is recommended whenever possible, as they are often optimized for performance by utilizing specific hardware capabilities.

question:#include <iostream> class Int17Matrix3D { public: Int17Matrix3D(int x, int y, int z); Int17Matrix3D(const Int17Matrix3D& other); ~Int17Matrix3D(); Int17Matrix3D& operator=(const Int17Matrix3D& other); static Int17Matrix3D make_array(int x, int y, int z); Int17Matrix3D& operator[](int index); int32_t operator[](int index) const; Int17Matrix3D& operator()(int x, int y, int z); int32_t operator()(int x, int y, int z) const; Int17Matrix3D& operator=(int32_t value); void copy(int32_t* array1, int32_t* array2, int size); private: const int8_t kNumLenght_ = 17; int32_t current_index_; int32_t max_index_; int32_t width_; int32_t height_; int32_t depth_; int32_t* array_; int32_t current_x_ = 0; int32_t current_y_ = 0; int32_t current_z_ = 0; bool TakeBit(const int32_t* value, uint32_t bit_position) const; Int17Matrix3D& ClearBit(int32_t* value, int32_t bit_position); Int17Matrix3D& SetBit(int32_t* value, int32_t bit_position); int GetIndex(int x, int y, int z) const; int32_t ToDecimal(const int32_t* array_, int32_t current_index_) const; friend Int17Matrix3D operator+(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend Int17Matrix3D operator-(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend Int17Matrix3D operator*(const Int17Matrix3D& lhs, const int32_t& rhs); friend std::ostream& operator<<(std::ostream& stream, const Int17Matrix3D& array); friend bool operator==(const Int17Matrix3D& lhs, int32_t rhs); friend bool operator==(int32_t lhs, const Int17Matrix3D& rhs); friend bool operator==(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend bool operator!=(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); }; #include <iostream> #include "Int17Matrix3D.h" Int17Matrix3D::Int17Matrix3D(int x, int y, int z) : width_(x), height_(y), depth_(z), array_(new int32_t[kNumLenght_ * x * y * z]){} Int17Matrix3D::Int17Matrix3D(const Int17Matrix3D& other) : width_(other.width_), height_(other.height_), depth_(other.depth_) { array_ = new int32_t[kNumLenght_ * width_ * height_ * depth_]; copy(array_, other.array_, kNumLenght_ * width_ * height_ * depth_); } Int17Matrix3D::~Int17Matrix3D() { delete[] array_; } Int17Matrix3D& Int17Matrix3D::operator=(const Int17Matrix3D& other) { if (this != &other) { delete[] array_; width_ = other.width_; height_ = other.height_; depth_ = other.depth_; array_ = new int32_t[kNumLenght_ * width_ * height_ * depth_]; copy(array_, other.array_, kNumLenght_ * width_ * height_ * depth_); } return *this; } Int17Matrix3D Int17Matrix3D::make_array(int x, int y, int z) { return Int17Matrix3D(x, y, z); } Int17Matrix3D& Int17Matrix3D::operator[](int index) { static int8_t counter = 0; if (counter == 0) { current_x_ = index; } else if (counter == 1) { current_y_ = index; } else { current_z_ = index; } if (counter == 2) { current_index_ = GetIndex(current_x_, current_y_, current_z_); counter = -1; } ++counter; if (current_x_ >= width_ || current_y_ >= height_ || current_z_ >= depth_) { throw std::out_of_range("Indices are out of bounds"); } return *this; } int Int17Matrix3D::operator[](int index) const { return ToDecimal(array_, current_index_); } Int17Matrix3D& Int17Matrix3D::operator=(int32_t value) { int first_bit_index = current_index_ * kNumLenght_; for (int i = 0; i < kNumLenght_; ++i) { if (value & (1 << i)) { SetBit(array_, first_bit_index + i); } else { ClearBit(array_, first_bit_index + i); } } return *this; } Int17Matrix3D& Int17Matrix3D::operator()(int x, int y, int z) { if (x >= width_ || y >= height_ || z >= depth_) { throw std::out_of_range("Indices are out of bounds"); } current_index_ = GetIndex(x, y, z); return *this; } int32_t Int17Matrix3D::operator()(int x, int y, int z) const { int index = GetIndex(x, y, z); return ToDecimal(array_, index); } void copy(int32_t* array1, int32_t* array2, int size) { while (--size > 0) { ++*array1 = ++*array2; } } bool Int17Matrix3D::TakeBit(const int32_t* value, uint32_t bit_position) const { int array_index = bit_position / 32; int bit_index = bit_position % 32; return ((value[array_index] >> bit_index) & 1) != 0; } Int17Matrix3D& Int17Matrix3D::ClearBit(int32_t* value, int32_t bit_position) { value[bit_position / 32] &= ~(1 << (bit_position % 32)); return *this; } Int17Matrix3D& Int17Matrix3D::SetBit(int32_t* value, int32_t bit_position) { value[bit_position / 32] |= (1 << (bit_position % 32)); return *this; } int Int17Matrix3D::GetIndex(int x, int y, int z) const { return x + y * (width_ * kNumLenght_) + z * (width_ * height_ * kNumLenght_); } int32_t Int17Matrix3D::ToDecimal(const int32_t* array_, int32_t current_index_) const { int first_bit_index = current_index_ * kNumLenght_; int32_t decimal_value = 0; int32_t exp = 1; for (int i = 0; i < kNumLenght_; ++i) { if (TakeBit(array_, first_bit_index + i)) { decimal_value += exp; } exp <<= 1; } return decimal_value; } Int17Matrix3D operator+(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { if (lhs.width_ != rhs.width_ || lhs.height_ != rhs.height_ || lhs.depth_ != rhs.depth_) { throw std::out_of_range("Arrays must be with the same size"); } Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); int val_rhs = rhs.ToDecimal(rhs.array_, index); result[x][y][z] = val_lhs + val_rhs; } } } return result; } Int17Matrix3D operator-(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { if (lhs.width_ != rhs.width_ || lhs.height_ != rhs.height_ || lhs.depth_ != rhs.depth_) { throw std::out_of_range("Arrays must be with the same size"); } Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); int val_rhs = rhs.ToDecimal(rhs.array_, index); result[x][y][z] = val_lhs - val_rhs; } } } return result; } Int17Matrix3D operator*(const Int17Matrix3D& lhs, const int32_t& rhs) { Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); result[x][y][z] = val_lhs * rhs; } } } return result; } bool operator==(const Int17Matrix3D& lhs, int32_t rhs) { return lhs.ToDecimal(lhs.array_, lhs.current_index_) == rhs; } bool operator==(int32_t lhs, const Int17Matrix3D& rhs) { return lhs == rhs.ToDecimal(rhs.array_, rhs.current_index_); } bool operator==(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { return lhs.ToDecimal(lhs.array_, lhs.current_index_) == rhs.ToDecimal(rhs.array_, rhs.current_index_); } bool operator!=(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { return !(lhs == rhs); } std::ostream& operator<<(std::ostream& stream, const Int17Matrix3D& array) { for (int z = 0; z < array.depth_; ++z) { for (int y = 0; y < array.height_; ++y) { for (int x = 0; x < array.width_; ++x) { if (x != 0) { stream << " "; } stream << array(x, y, z); } stream << 'n'; } if (z != array.depth_ - 1) { stream << 'n'; } } return stream; } #include <gtest/gtest.h> #include <lib/Int17Matrix3D.h> TEST(Int17Matrix3DTest, Constructor) { Int17Matrix3D matrix(2, 2, 2); ASSERT_NO_THROW(); } TEST(Int17Matrix3DTest, make_array) { Int17Matrix3D matrix = Int17Matrix3D::make_array(2, 2, 2); ASSERT_NO_THROW(); } TEST(Int17Matrix3DTest, CopyConstructor) { Int17Matrix3D original(1, 2, 3); ASSERT_NO_THROW(Int17Matrix3D copy = original); } TEST(Int17Matrix3DTest, ParenthesesOperator_EqTest) { Int17Matrix3D matrix(3, 3, 3); matrix[1][1][1] = 5; ASSERT_EQ(matrix[1][1][1], 5); } TEST(Int17Matrix3DTest, ParenthesesOperator_NonEqTest) { Int17Matrix3D matrix(3, 3, 3); matrix[1][1][1] = 5; ASSERT_NE(matrix[1][1][1], 7); } TEST(Int17Matrix3DTest, ParenthesesOperator_BoundsCheck) { Int17Matrix3D matrix(2, 2, 2); ASSERT_THROW(matrix[1][1][3] = 5, std::out_of_range); } TEST(Int17Matrix3DTest, EqualOperator_TwoEq) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(2, 2, 2); arr1[0][0][0] = 10; arr2[0][0][0] = 10; arr2[1][1][1] = 10; ASSERT_EQ(arr1[0][0][0], arr2[0][0][0]); ASSERT_EQ(arr1[0][0][0], arr2[1][1][1]); } TEST(Int17Matrix3DTest, EqualOperator_NonEq) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); arr1[0][0][0] = 1; arr2[0][0][0] = 3; ASSERT_NE(arr1[0][0][0], arr2[0][0][0]); } TEST(Int17Matrix3DTest, AssignmentOperator_NoThrow) { Int17Matrix3D arr1(1, 2, 3); Int17Matrix3D arr2(2, 2, 2); ASSERT_NO_THROW(arr2 = arr1); } TEST(Int17Matrix3DTest, AssignmentOperator_Trow) { Int17Matrix3D arr1(1, 2, 3); Int17Matrix3D arr2(2, 2, 2); arr2 = arr1; ASSERT_THROW(arr2[1][1][1], std::out_of_range); } TEST(Int17Matrix3DTest, AssignmentOperator) { Int17Matrix3D arr1(1, 2, 3); Int17Matrix3D arr2(2, 2, 2); arr1[0][1][2] = 5; arr2[0][0][0] = 3; arr2 = arr1; ASSERT_EQ(arr2[0][1][2], 5); ASSERT_NE(arr2[0][0][0], 3); } TEST(Int17Matrix3DTest, Addition_EmptyArrays) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); Int17Matrix3D arr3 = arr1 + arr2; ASSERT_EQ(arr3[0][0][0], 0); } TEST(Int17Matrix3DTest, Addition_SingleCells) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); arr1[0][0][0] = 1; arr2[0][0][0] = 2; Int17Matrix3D arr3 = arr1 + arr2; ASSERT_EQ(arr3[0][0][0], 3); } TEST(Int17Matrix3DTest, Addition_FewCells) { Int17Matrix3D arr1(1, 1, 2); Int17Matrix3D arr2(1, 1, 2); arr1[0][0][1] = 1; arr1[0][0][0] = 5; arr2[0][0][0] = 2; Int17Matrix3D arr3 = arr1 + arr2; ASSERT_EQ(arr3[0][0][0], 7); ASSERT_EQ(arr3[0][0][1], 1); } TEST(Int17Matrix3DTest, Addition_DifferentSize) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 2); arr1[0][0][0] = 1; arr2[0][0][0] = 2; ASSERT_THROW(Int17Matrix3D arr3 = arr1 + arr2, std::out_of_range); } TEST(Int17Matrix3DTest, Substraction_EmptyArrays) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); Int17Matrix3D arr3 = arr1 - arr2; ASSERT_EQ(arr3[0][0][0], 0); } TEST(Int17Matrix3DTest, Substraction_SingleCells) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); arr1[0][0][0] = 7; arr2[0][0][0] = 2; Int17Matrix3D arr3 = arr1 - arr2; ASSERT_EQ(arr3[0][0][0], 5); } TEST(Int17Matrix3DTest, Substraction_FewCells) { Int17Matrix3D arr1(1, 1, 2); Int17Matrix3D arr2(1, 1, 2); arr1[0][0][1] = 3; arr1[0][0][0] = 5; arr2[0][0][0] = 2; Int17Matrix3D arr3 = arr1 - arr2; ASSERT_EQ(arr3[0][0][0], 3); ASSERT_EQ(arr3[0][0][1], 3); } TEST(Int17Matrix3DTest, Multiplication_ByZero) { Int17Matrix3D arr1(2, 2, 2); arr1[0][0][0] = 1; arr1[0][0][1] = 2; arr1[0][1][0] = 3; arr1[0][1][1] = 4; arr1[1][0][0] = 5; arr1[1][0][1] = 6; arr1[1][1][0] = 7; arr1[1][1][1] = 8; int mult = 0; Int17Matrix3D arr3 = arr1 * mult; ASSERT_EQ(arr3[0][0][0], 0); ASSERT_EQ(arr3[0][0][1], 0); ASSERT_EQ(arr3[0][1][0], 0); ASSERT_EQ(arr3[0][1][1], 0); ASSERT_EQ(arr3[1][0][0], 0); ASSERT_EQ(arr3[1][0][1], 0); ASSERT_EQ(arr3[1][1][0], 0); ASSERT_EQ(arr3[1][1][1], 0); } TEST(Int17Matrix3DTest, Multiplication) { Int17Matrix3D arr1(2, 2, 2); Int17Matrix3D arr2 (2, 2, 2); arr1[0][0][0] = 1; arr1[0][0][1] = 2; arr1[0][1][0] = 3; arr1[0][1][1] = 4; arr1[1][0][0] = 5; arr1[1][0][1] = 6; arr1[1][1][0] = 7; arr1[1][1][1] = 8; int mult = 10; arr2 = arr1 * mult; ASSERT_EQ(arr2[0][0][0], 10); ASSERT_EQ(arr2[0][0][1], 20); ASSERT_EQ(arr2[0][1][0], 30); ASSERT_EQ(arr2[0][1][1], 40); ASSERT_EQ(arr2[1][0][0], 50); ASSERT_EQ(arr2[1][0][1], 60); ASSERT_EQ(arr2[1][1][0], 70); ASSERT_EQ(arr2[1][1][1], 80); } Undefined symbols for architecture arm64: "Int17Matrix3D::copy(int*, int*, int)", referenced from: Int17Matrix3D::Int17Matrix3D(Int17Matrix3D const&) in libInt17Matrix3D.a(Int17Matrix3D.cpp.o) Int17Matrix3D::operator=(Int17Matrix3D const&) in libInt17Matrix3D.a(Int17Matrix3D.cpp.o) ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [tests/Int17Matrix3D_test] Error 1 make[1]: *** [tests/CMakeFiles/Int17Matrix3D_test.dir/all] Error 2 make: *** [all] Error 2

answer:The error message indicates that the linker cannot find the definition of the `copy` function because the definition provided does not match the declaration in the `Int17Matrix3D` class. In the class, `copy` is a non-static member function, but the definition provided is for a free (non-member) function. To resolve this problem, you should make sure to define `copy` as a member function of `Int17Matrix3D`. Additionally, your current `copy` function implementation is not correct; the increment operators are not being used properly. Here is the corrected definition for `copy`: ```cpp void Int17Matrix3D::copy(int32_t* dest, const int32_t* src, int size) { for (int i = 0; i < size; ++i) { dest[i] = src[i]; } } ``` And ensure that you declare the `copy` function inside your `Int17Matrix3D` class as follows: ```cpp class Int17Matrix3D { public: // Other members... void copy(int32_t* dest, const int32_t* src, int count); // Other members... }; ``` Remember to also update the `copy` method calls in your copy constructor and your copy assignment operator to use the correct syntax for calling a member function: ```cpp Int17Matrix3D::Int17Matrix3D(const Int17Matrix3D& other) : width_(other.width_), height_(other.height_), depth_(other.depth_), array_(new int32_t[kNumLenght_ * width_ * height_ * depth_]) { copy(array_, other.array_, kNumLenght_ * width_ * height_ * depth_); } Int17Matrix3D& Int17Matrix3D::operator=(const Int17Matrix3D& other) { if (this != &other) { delete[] array_; width_ = other.width_; height_ = other.height_; depth_ = other.depth_; array_ = new int32_t[kNumLenght_ * width_ * height_ * depth_]; copy(array_, other.array_, kNumLenght_ * width_ * height_ * depth_); } return *this; } ``` After making these changes, the linker should find the `copy` function's definition, and the compilation should succeed without the reported linker error.

question:#include <iostream> class Int17Matrix3D { public: Int17Matrix3D(int x, int y, int z); Int17Matrix3D(const Int17Matrix3D& other); ~Int17Matrix3D(); Int17Matrix3D& operator=(const Int17Matrix3D& other); static Int17Matrix3D make_array(int x, int y, int z); Int17Matrix3D& operator[](int index); int32_t operator[](int index) const; Int17Matrix3D& operator()(int x, int y, int z); int32_t operator()(int x, int y, int z) const; Int17Matrix3D& operator=(int32_t value); void copy(int32_t* array1, int32_t* array2, int size); private: const int8_t kNumLenght_ = 17; int32_t current_index_; int32_t max_index_; int32_t width_; int32_t height_; int32_t depth_; int32_t* array_; int32_t current_x_ = 0; int32_t current_y_ = 0; int32_t current_z_ = 0; bool TakeBit(const int32_t* value, uint32_t bit_position) const; Int17Matrix3D& ClearBit(int32_t* value, int32_t bit_position); Int17Matrix3D& SetBit(int32_t* value, int32_t bit_position); int GetIndex(int x, int y, int z) const; int32_t ToDecimal(const int32_t* array_, int32_t current_index_) const; friend Int17Matrix3D operator+(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend Int17Matrix3D operator-(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend Int17Matrix3D operator*(const Int17Matrix3D& lhs, const int32_t& rhs); friend std::ostream& operator<<(std::ostream& stream, const Int17Matrix3D& array); friend bool operator==(const Int17Matrix3D& lhs, int32_t rhs); friend bool operator==(int32_t lhs, const Int17Matrix3D& rhs); friend bool operator==(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); friend bool operator!=(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs); }; #include <iostream> #include "Int17Matrix3D.h" Int17Matrix3D::Int17Matrix3D(int x, int y, int z) : width_(x), height_(y), depth_(z), array_(new int32_t[kNumLenght_ * x * y * z]){} Int17Matrix3D::Int17Matrix3D(const Int17Matrix3D& other) : width_(other.width_), height_(other.height_), depth_(other.depth_), array_(new int32_t[kNumLenght_ * width_ * height_ * depth_]) { copy(array_, other.array_, kNumLenght_ * width_ * height_ * depth_); } Int17Matrix3D::~Int17Matrix3D() { delete[] array_; } Int17Matrix3D& Int17Matrix3D::operator=(const Int17Matrix3D& other) { if (this != &other) { delete[] array_; width_ = other.width_; height_ = other.height_; depth_ = other.depth_; array_ = new int32_t[kNumLenght_ * width_ * height_ * depth_]; copy(array_, other.array_, kNumLenght_ * width_ * height_ * depth_); } return *this; } Int17Matrix3D Int17Matrix3D::make_array(int x, int y, int z) { return Int17Matrix3D(x, y, z); } Int17Matrix3D& Int17Matrix3D::operator[](int index) { static int8_t counter = 0; if (counter == 0) { current_x_ = index; } else if (counter == 1) { current_y_ = index; } else { current_z_ = index; } if (counter == 2) { current_index_ = GetIndex(current_x_, current_y_, current_z_); counter = -1; } ++counter; if (current_x_ >= width_ || current_y_ >= height_ || current_z_ >= depth_) { throw std::out_of_range("Indices are out of bounds"); } return *this; } int Int17Matrix3D::operator[](int index) const { return ToDecimal(array_, current_index_); } Int17Matrix3D& Int17Matrix3D::operator=(int32_t value) { int first_bit_index = current_index_ * kNumLenght_; for (int i = 0; i < kNumLenght_; ++i) { if (value & (1 << i)) { SetBit(array_, first_bit_index + i); } else { ClearBit(array_, first_bit_index + i); } } return *this; } Int17Matrix3D& Int17Matrix3D::operator()(int x, int y, int z) { if (x >= width_ || y >= height_ || z >= depth_) { throw std::out_of_range("Indices are out of bounds"); } current_index_ = GetIndex(x, y, z); return *this; } int32_t Int17Matrix3D::operator()(int x, int y, int z) const { int index = GetIndex(x, y, z); return ToDecimal(array_, index); } void copy(int32_t* array1, int32_t* array2, int size) { for (int i = 0; i < size; ++i) { array1[i] = array2[i]; } } bool Int17Matrix3D::TakeBit(const int32_t* value, uint32_t bit_position) const { int array_index = bit_position / 32; int bit_index = bit_position % 32; return ((value[array_index] >> bit_index) & 1) != 0; } Int17Matrix3D& Int17Matrix3D::ClearBit(int32_t* value, int32_t bit_position) { value[bit_position / 32] &= ~(1 << (bit_position % 32)); return *this; } Int17Matrix3D& Int17Matrix3D::SetBit(int32_t* value, int32_t bit_position) { value[bit_position / 32] |= (1 << (bit_position % 32)); return *this; } int Int17Matrix3D::GetIndex(int x, int y, int z) const { return x + y * (width_ * kNumLenght_) + z * (width_ * height_ * kNumLenght_); } int32_t Int17Matrix3D::ToDecimal(const int32_t* array_, int32_t current_index_) const { int first_bit_index = current_index_ * kNumLenght_; int32_t decimal_value = 0; int32_t exp = 1; for (int i = 0; i < kNumLenght_; ++i) { if (TakeBit(array_, first_bit_index + i)) { decimal_value += exp; } exp <<= 1; } return decimal_value; } Int17Matrix3D operator+(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { if (lhs.width_ != rhs.width_ || lhs.height_ != rhs.height_ || lhs.depth_ != rhs.depth_) { throw std::out_of_range("Arrays must be with the same size"); } Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); int val_rhs = rhs.ToDecimal(rhs.array_, index); result[x][y][z] = val_lhs + val_rhs; } } } return result; } Int17Matrix3D operator-(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { if (lhs.width_ != rhs.width_ || lhs.height_ != rhs.height_ || lhs.depth_ != rhs.depth_) { throw std::out_of_range("Arrays must be with the same size"); } Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); int val_rhs = rhs.ToDecimal(rhs.array_, index); result[x][y][z] = val_lhs - val_rhs; } } } return result; } Int17Matrix3D operator*(const Int17Matrix3D& lhs, const int32_t& rhs) { Int17Matrix3D result(lhs.width_, lhs.height_, lhs.depth_); for (int z = 0; z < lhs.depth_; ++z) { for (int y = 0; y < lhs.height_; ++y) { for (int x = 0; x < lhs.width_; ++x) { int index = lhs.GetIndex(x, y, z); int val_lhs = lhs.ToDecimal(lhs.array_, index); result[x][y][z] = val_lhs * rhs; } } } return result; } bool operator==(const Int17Matrix3D& lhs, int32_t rhs) { return lhs.ToDecimal(lhs.array_, lhs.current_index_) == rhs; } bool operator==(int32_t lhs, const Int17Matrix3D& rhs) { return lhs == rhs.ToDecimal(rhs.array_, rhs.current_index_); } bool operator==(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { return lhs.ToDecimal(lhs.array_, lhs.current_index_) == rhs.ToDecimal(rhs.array_, rhs.current_index_); } bool operator!=(const Int17Matrix3D& lhs, const Int17Matrix3D& rhs) { return !(lhs == rhs); } std::ostream& operator<<(std::ostream& stream, const Int17Matrix3D& array) { for (int z = 0; z < array.depth_; ++z) { for (int y = 0; y < array.height_; ++y) { for (int x = 0; x < array.width_; ++x) { if (x != 0) { stream << " "; } stream << array(x, y, z); } stream << 'n'; } if (z != array.depth_ - 1) { stream << 'n'; } } return stream; } #include <gtest/gtest.h> #include <lib/Int17Matrix3D.h> TEST(Int17Matrix3DTest, Constructor) { Int17Matrix3D matrix(2, 2, 2); ASSERT_NO_THROW(); } TEST(Int17Matrix3DTest, make_array) { Int17Matrix3D matrix = Int17Matrix3D::make_array(2, 2, 2); ASSERT_NO_THROW(); } TEST(Int17Matrix3DTest, CopyConstructor) { Int17Matrix3D original(1, 2, 3); ASSERT_NO_THROW(Int17Matrix3D copy = original); } TEST(Int17Matrix3DTest, ParenthesesOperator_EqTest) { Int17Matrix3D matrix(3, 3, 3); matrix[1][1][1] = 5; ASSERT_EQ(matrix[1][1][1], 5); } TEST(Int17Matrix3DTest, ParenthesesOperator_NonEqTest) { Int17Matrix3D matrix(3, 3, 3); matrix[1][1][1] = 5; ASSERT_NE(matrix[1][1][1], 7); } TEST(Int17Matrix3DTest, ParenthesesOperator_BoundsCheck) { Int17Matrix3D matrix(2, 2, 2); ASSERT_THROW(matrix[1][1][3] = 5, std::out_of_range); } TEST(Int17Matrix3DTest, EqualOperator_TwoEq) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(2, 2, 2); arr1[0][0][0] = 10; arr2[0][0][0] = 10; arr2[1][1][1] = 10; ASSERT_EQ(arr1[0][0][0], arr2[0][0][0]); ASSERT_EQ(arr1[0][0][0], arr2[1][1][1]); } TEST(Int17Matrix3DTest, EqualOperator_NonEq) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); arr1[0][0][0] = 1; arr2[0][0][0] = 3; ASSERT_NE(arr1[0][0][0], arr2[0][0][0]); } TEST(Int17Matrix3DTest, AssignmentOperator_NoThrow) { Int17Matrix3D arr1(1, 2, 3); Int17Matrix3D arr2(2, 2, 2); ASSERT_NO_THROW(arr2 = arr1); } TEST(Int17Matrix3DTest, AssignmentOperator_Trow) { Int17Matrix3D arr1(1, 2, 3); Int17Matrix3D arr2(2, 2, 2); arr2 = arr1; ASSERT_THROW(arr2[1][1][1], std::out_of_range); } TEST(Int17Matrix3DTest, AssignmentOperator) { Int17Matrix3D arr1(1, 2, 3); Int17Matrix3D arr2(2, 2, 2); arr1[0][1][2] = 5; arr2[0][0][0] = 3; arr2 = arr1; ASSERT_EQ(arr2[0][1][2], 5); ASSERT_NE(arr2[0][0][0], 3); } TEST(Int17Matrix3DTest, Addition_EmptyArrays) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); Int17Matrix3D arr3 = arr1 + arr2; ASSERT_EQ(arr3[0][0][0], 0); } TEST(Int17Matrix3DTest, Addition_SingleCells) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); arr1[0][0][0] = 1; arr2[0][0][0] = 2; Int17Matrix3D arr3 = arr1 + arr2; ASSERT_EQ(arr3[0][0][0], 3); } TEST(Int17Matrix3DTest, Addition_FewCells) { Int17Matrix3D arr1(1, 1, 2); Int17Matrix3D arr2(1, 1, 2); arr1[0][0][1] = 1; arr1[0][0][0] = 5; arr2[0][0][0] = 2; Int17Matrix3D arr3 = arr1 + arr2; ASSERT_EQ(arr3[0][0][0], 7); ASSERT_EQ(arr3[0][0][1], 1); } TEST(Int17Matrix3DTest, Addition_DifferentSize) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 2); arr1[0][0][0] = 1; arr2[0][0][0] = 2; ASSERT_THROW(Int17Matrix3D arr3 = arr1 + arr2, std::out_of_range); } TEST(Int17Matrix3DTest, Substraction_EmptyArrays) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); Int17Matrix3D arr3 = arr1 - arr2; ASSERT_EQ(arr3[0][0][0], 0); } TEST(Int17Matrix3DTest, Substraction_SingleCells) { Int17Matrix3D arr1(1, 1, 1); Int17Matrix3D arr2(1, 1, 1); arr1[0][0][0] = 7; arr2[0][0][0] = 2; Int17Matrix3D arr3 = arr1 - arr2; ASSERT_EQ(arr3[0][0][0], 5); } TEST(Int17Matrix3DTest, Substraction_FewCells) { Int17Matrix3D arr1(1, 1, 2); Int17Matrix3D arr2(1, 1, 2); arr1[0][0][1] = 3; arr1[0][0][0] = 5; arr2[0][0][0] = 2; Int17Matrix3D arr3 = arr1 - arr2; ASSERT_EQ(arr3[0][0][0], 3); ASSERT_EQ(arr3[0][0][1], 3); } TEST(Int17Matrix3DTest, Multiplication_ByZero) { Int17Matrix3D arr1(2, 2, 2); arr1[0][0][0] = 1; arr1[0][0][1] = 2; arr1[0][1][0] = 3; arr1[0][1][1] = 4; arr1[1][0][0] = 5; arr1[1][0][1] = 6; arr1[1][1][0] = 7; arr1[1][1][1] = 8; int mult = 0; Int17Matrix3D arr3 = arr1 * mult; ASSERT_EQ(arr3[0][0][0], 0); ASSERT_EQ(arr3[0][0][1], 0); ASSERT_EQ(arr3[0][1][0], 0); ASSERT_EQ(arr3[0][1][1], 0); ASSERT_EQ(arr3[1][0][0], 0); ASSERT_EQ(arr3[1][0][1], 0); ASSERT_EQ(arr3[1][1][0], 0); ASSERT_EQ(arr3[1][1][1], 0); } TEST(Int17Matrix3DTest, Multiplication) { Int17Matrix3D arr1(2, 2, 2); Int17Matrix3D arr2 (2, 2, 2); arr1[0][0][0] = 1; arr1[0][0][1] = 2; arr1[0][1][0] = 3; arr1[0][1][1] = 4; arr1[1][0][0] = 5; arr1[1][0][1] = 6; arr1[1][1][0] = 7; arr1[1][1][1] = 8; int mult = 10; arr2 = arr1 * mult; ASSERT_EQ(arr2[0][0][0], 10); ASSERT_EQ(arr2[0][0][1], 20); ASSERT_EQ(arr2[0][1][0], 30); ASSERT_EQ(arr2[0][1][1], 40); ASSERT_EQ(arr2[1][0][0], 50); ASSERT_EQ(arr2[1][0][1], 60); ASSERT_EQ(arr2[1][1][0], 70); ASSERT_EQ(arr2[1][1][1], 80); } [ 64%] Linking CXX executable Int17Matrix3D_test Undefined symbols for architecture arm64: "Int17Matrix3D::copy(int*, int*, int)", referenced from: Int17Matrix3D::Int17Matrix3D(Int17Matrix3D const&) in libInt17Matrix3D.a(Int17Matrix3D.cpp.o) Int17Matrix3D::operator=(Int17Matrix3D const&) in libInt17Matrix3D.a(Int17Matrix3D.cpp.o) ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [tests/Int17Matrix3D_test] Error 1 make[1]: *** [tests/CMakeFiles/Int17Matrix3D_test.dir/all] Error 2 make: *** [all] Error 2

answer:The error `Undefined symbols for architecture arm64` suggests that the linker is unable to find the definition of `Int17Matrix3D::copy`. It appears that your `copy` function is mistakenly defined as a non-member function. You need to define it as a member function of the `Int17Matrix3D` class. Change the definition of `copy` in the .cpp file to the following: ```cpp void Int17Matrix3D::copy(int32_t* dest, const int32_t* src, int size) { for (int i = 0; i < size; ++i) { dest[i] = src[i]; } } ``` Notice the correct use of `Int17Matrix3D::` before `copy` to indicate that it's a member function of `Int17Matrix3D`. Additionally, ensure that the `copy` method is publicly declared in the `Int17Matrix3D` class definition in the .h file: ```cpp class Int17Matrix3D { public: // Other members... void copy(int32_t* dest, const int32_t* src, int size); // Other members... }; ``` With this correction, the linker should be able to link the `copy` function during compilation, and you shouldn't see any linker errors due to `copy`. Make sure to also review your project structure and build process to confirm that all source (`.cpp`) files are correctly added to the project and that there are no typos or name mismatches.