#include "VectorDouble.h"

Vector& Vector::operator=(const Vector& arg) // copy operator &

{

if(this == &arg) return *this;

if(arg.sz <= space)

{

for(int i = 0; i < arg.sz; ++i) elem[i] = arg.elem[i];

sz = arg.sz;

return *this;

}

double *p = new double[arg.sz];

for(int i = 0; i < arg.sz; ++i) p[i] = arg.elem[i];

delete[] elem;

space = sz = arg.sz;

elem = p;

return *this;

}

Vector& Vector::operator=(Vector&& arg) // move operator &&

{

delete[] elem;

elem = arg.elem;

sz = arg.sz;

space = arg.space;

arg.elem = nullptr;

arg.sz = 0;

arg.space = 0;

return *this;

}

void Vector::reserve(int newalloc)

{

if(newalloc <= space) return;

double *p = new double[newalloc];

for(int i = 0; i < sz; ++i) p[i] = elem[i];

delete[] elem;

elem = p;

space = newalloc;

}

void Vector::resize(int newsize)

{

reserve(newsize);

for(int i = sz; i < newsize; ++i) elem[i] = 0;

sz = newsize;

}

void Vector::push_back(double d)

{

if(space == 0)

reserve(8);

else if(sz==space)

reserve(2*space);

elem[sz] = d;

++sz;

}

void printer(Vector& v)

{

for(int i = 0; i < v.size(); ++i)

std::cout << v[i] << "\t";

std::cout << "\n";

}