Question 10 Write both the move assignment operator and move constructor member functions for this templated CS30Vecto #include template class CS30Vector { public: // Constructs a vector size num CS30Vector(int num) {/*Implementation not shown*/} CS30Vector() {/*Implementation not shown*/} // your code will go here // additional member functions not shown private: T *arr=nullptr; // used to point to dynamic array int size; }; // number of elements in array void foo (CS3øVector v){/*Implementation not shown*/} int main ( ) { CS30Vector 11{6}; CS30Vector 12; // uses move assignment operator 12 = std::move(11); // uses move constructor below foo(CS30Vector(3)); return 0;
Question 10 Write both the move assignment operator and move constructor member functions for this templated CS30Vecto #include template class CS30Vector { public: // Constructs a vector size num CS30Vector(int num) {/*Implementation not shown*/} CS30Vector() {/*Implementation not shown*/} // your code will go here // additional member functions not shown private: T *arr=nullptr; // used to point to dynamic array int size; }; // number of elements in array void foo (CS3øVector v){/*Implementation not shown*/} int main ( ) { CS30Vector 11{6}; CS30Vector 12; // uses move assignment operator 12 = std::move(11); // uses move constructor below foo(CS30Vector(3)); return 0;
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Chapter1: Computer Networks And The Internet
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![### Question 10
**Task:** Write both the move assignment operator and move constructor member functions for this templated `CS30Vector` class.
```cpp
#include <iostream>
template <typename T>
class CS30Vector {
public:
// Constructs a vector size num
CS30Vector(int num) {/*Implementation not shown*/}
CS30Vector() {/*Implementation not shown*/}
// your code will go here
// additional member functions not shown
private:
T *arr=nullptr; // used to point to dynamic array
int size; // number of elements in array
};
void foo (CS30Vector<int> v){/*Implementation not shown*/}
int main ( ) {
CS30Vector<int> l1{6};
CS30Vector<int> l2;
// uses move assignment operator
l2 = std::move(l1);
// uses move constructor below
foo(CS30Vector<int>(3));
return 0;
}
```
### Explanation
This code provides a partially implemented template class `CS30Vector`, which represents a simple dynamic array (vector). Two constructors are declared but not implemented:
1. **Parameterized Constructor:** `CS30Vector(int num)` which initializes a vector of size `num`.
2. **Default Constructor:** `CS30Vector()` which serves as a default initializing constructor.
### Private Members
- **arr:** A pointer of type `T` (template type), intended to point to a dynamic array.
- **size:** An integer to store the number of elements in the array.
### Tasks to Implement
You are required to implement:
- **Move Assignment Operator:** Responsible for allowing an object to be moved rather than copied, useful to optimize performance when working with temporary objects.
- **Move Constructor:** An essential function to transfer resource ownership from one object to another (also optimizing performance), especially for temporary and rvalue objects.
### Usage in `main`
- **Move Assignment Operator** is demonstrated by:
```cpp
l2 = std::move(l1);
```
This line shows how the resources from `l1` are moved to `l2`.
- **Move Constructor** is utilized in:
```cpp
foo(CS30Vector<int>(3));
```
This line implicitly creates a temporary object of `CS30Vector<int>` which is then moved into the function `foo`.
This task](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2e51c4f9-7707-4851-92b0-3f7eb5342ba2%2F8b8edddc-45b8-460d-ba23-271f2fbc6c5c%2Fe61rrr_processed.png&w=3840&q=75)
Transcribed Image Text:### Question 10
**Task:** Write both the move assignment operator and move constructor member functions for this templated `CS30Vector` class.
```cpp
#include <iostream>
template <typename T>
class CS30Vector {
public:
// Constructs a vector size num
CS30Vector(int num) {/*Implementation not shown*/}
CS30Vector() {/*Implementation not shown*/}
// your code will go here
// additional member functions not shown
private:
T *arr=nullptr; // used to point to dynamic array
int size; // number of elements in array
};
void foo (CS30Vector<int> v){/*Implementation not shown*/}
int main ( ) {
CS30Vector<int> l1{6};
CS30Vector<int> l2;
// uses move assignment operator
l2 = std::move(l1);
// uses move constructor below
foo(CS30Vector<int>(3));
return 0;
}
```
### Explanation
This code provides a partially implemented template class `CS30Vector`, which represents a simple dynamic array (vector). Two constructors are declared but not implemented:
1. **Parameterized Constructor:** `CS30Vector(int num)` which initializes a vector of size `num`.
2. **Default Constructor:** `CS30Vector()` which serves as a default initializing constructor.
### Private Members
- **arr:** A pointer of type `T` (template type), intended to point to a dynamic array.
- **size:** An integer to store the number of elements in the array.
### Tasks to Implement
You are required to implement:
- **Move Assignment Operator:** Responsible for allowing an object to be moved rather than copied, useful to optimize performance when working with temporary objects.
- **Move Constructor:** An essential function to transfer resource ownership from one object to another (also optimizing performance), especially for temporary and rvalue objects.
### Usage in `main`
- **Move Assignment Operator** is demonstrated by:
```cpp
l2 = std::move(l1);
```
This line shows how the resources from `l1` are moved to `l2`.
- **Move Constructor** is utilized in:
```cpp
foo(CS30Vector<int>(3));
```
This line implicitly creates a temporary object of `CS30Vector<int>` which is then moved into the function `foo`.
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