Question

Complete the implementation of the vector class move constructor and complete the implementation of the vector class move assignment operator. Any assistance is appreciated. The language is C++.

//--Q#3-------------------------------------------------------------------------

vector::vector(vector&& source) // move constructor

// copy source elem and vsize only, no need for copy operation

  // : ...

{

// ... // now that source vector contents have been moved, empty the vector

// ...

}

//--Q#4-------------------------------------------------------------------------

vector& vector::operator=(vector&& rhs) // move assignment

// move rhs (i.e. source) to this vector

{

// ...        // deallocate old space

// ...        // copy rhs's elements and size, move implies copying element pointer only

// ...

  // ...        // empty the rhs vector

// ...

return *this;     // return a self-reference

}

Answer 1

//--Q#3-------------------------------------------------------------------------

vector::vector(vector&& source) // move constructor
// copy source elem and vsize only, no need for copy operation
// : ...
{
// ... // now that source vector contents have been moved, empty the vector
// ...
vsize = source.vsize;
for (int i=0; i<vsize; i++)
{
elem[i] = source.elem[i];
}
delete source.elem;
}

//--Q#4-------------------------------------------------------------------------

vector& vector::operator=(vector&& rhs) // move assignment
// move rhs (i.e. source) to this vector
{

// ... // deallocate old space
delete elem;
// ... // copy rhs’s elements and size, move implies copying element pointer only
elem = new double[rhs.vsize];
copy(rhs);

// ...
// ... // empty the rhs vector
delete rhs.elem;

// ...
return *this; // return a self-reference

}

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