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#include "Nvector.h"
Nvector::Nvector(size_t n) : size(n)
{
data = new int[n];
for (int i = 0; i < n; i++)
data[i] = 0;
}
Nvector::Nvector(const Nvector& other)
{
copyFrom(other);
}
Nvector& Nvector::operator=(const Nvector& other)
{
if (this != &other)
{
free();
copyFrom(other);
}
return *this;
}
Nvector::~Nvector()
{
free();
}
void Nvector::copyFrom(const Nvector& other)
{
size = other.size;
data = new int[size];
for (int i = 0; i < size; i++)
data[i] = other.data[i];
}
void Nvector::free()
{
delete[] data;
size = 0;
}
//v += v1;
Nvector& Nvector::operator+=(const Nvector& other)
{
if (size != other.size)
throw "The vectors should have the same size!";
for (int i = 0; i < size; i++)
data[i] += other.data[i];
return *this;
}
Nvector& Nvector::operator-=(const Nvector& other)
{
if (size != other.size)
throw "The vectors should have the same size!";
for (int i = 0; i < size; i++)
data[i] -= other.data[i];
return *this;
}
const Nvector operator+(const Nvector& lhs, const Nvector& rhs)
{
Nvector lhsCopy(lhs);
lhsCopy += rhs;
return lhsCopy;
}
const Nvector operator-(const Nvector& lhs, const Nvector& rhs)
{
Nvector lhsCopy(lhs);
lhsCopy -= rhs;
return lhsCopy;
}
int& Nvector::operator[](size_t index)
{
if (index >= size)
throw "Invalid index";
return data[index];
}
int Nvector::operator[](size_t index) const
{
if (index >= size)
throw "Invalid index";
return data[index];
}
size_t Nvector::operator~() const
{
return size;
}
std::ostream& operator<<(std::ostream& os, const Nvector& v)
{
os << "[ ";
for (int i = 0; i < v.size; i++)
os << v[i] << " ";
os << " ]";
return os;
}
std::istream& operator>>(std::istream& is, Nvector& v)
{
for (int i = 0; i < v.size; i++)
is >> v[i];
return is;
}
bool operator||(const Nvector& lhs, const Nvector& rhs)
{
if (~lhs != ~rhs)
return false;
double coef = (double)lhs[0] / rhs[0];
double eps = 0.01;
for (int i = 1; i < ~lhs; i++)
{
double currCoef = (double)lhs[i] / rhs[i];
if (abs(currCoef - coef) > eps)
return false;
}
return true;
}
Nvector& Nvector::operator*=(size_t scalar)
{
for (int i = 0; i < size; i++)
data[i] *= scalar;
return *this;
}
const Nvector operator*(const Nvector& lhs, size_t scalar)
{
Nvector copy(lhs);
copy *= scalar;
return copy;
}
const Nvector operator*(size_t scalar, const Nvector& lhs)
{
return lhs * scalar;
}
size_t operator%(const Nvector& lhs, const Nvector& rhs)
{
if (~lhs != ~rhs)
throw "The vectors should have the same size!";
size_t res = 0;
for (int i = 0; ~lhs; i++)
res += lhs[i] * rhs[i];
return res;
}
size_t operator|=(const Nvector& lhs, const Nvector& rhs)
{
return lhs % rhs == 0; //the size check is done by %
}
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