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#include "vector.hh"
#include "state_saver.hh"
Vector::Vector(double x, double y)
: x_{ x }
, y_{ y }
{}
double Vector::get_x() const
{
return x_;
}
double Vector::get_y() const
{
return y_;
}
Vector& Vector::operator+=(const Vector& rhs)
{
x_ += rhs.get_x();
y_ += rhs.get_y();
return *this;
}
Vector& Vector::operator-=(const Vector& rhs)
{
x_ -= rhs.get_x();
y_ -= rhs.get_y();
return *this;
}
Vector& Vector::operator*=(double scalar)
{
x_ *= scalar;
y_ *= scalar;
return *this;
}
Vector operator+(const Vector& lhs, const Vector& rhs)
{
Vector lhs1{ lhs };
return lhs1 += rhs;
}
Vector operator-(const Vector& lhs, const Vector& rhs)
{
Vector lhs1{ lhs };
return lhs1 -= rhs;
}
Vector operator*(const Vector& lhs, double scalar)
{
Vector lhs1{ lhs };
return lhs1 *= scalar;
}
Vector operator*(double scalar, const Vector& rhs)
{
return rhs * scalar;
}
double operator*(const Vector& lhs, const Vector& rhs)
{
return lhs.get_x() * rhs.get_x() + lhs.get_y() * rhs.get_y();
}
FormatNumericalData Vector::format_numerical_data_{ "[ ", " ]", 12, true,
true };
std::ostream& operator<<(std::ostream& os, const Vector& vec)
{
StateSaver savestate{ os };
Vector::format_numerical_data_.formatOs(os);
os << Vector::format_numerical_data_.prefix << vec.get_x() << " , "
<< vec.get_y() << Vector::format_numerical_data_.suffix;
return os;
}
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