resistor.cpp

#include "resistor.h"

double Resistor::defR = 1290;

Resistor::Resistor() : R(defR) {}

Resistor::Resistor(double r) : R(r) {}

void Resistor::setDef(double r) {
	Resistor::defR = r;
}

Resistor Resistor::operator+(const Resistor& r) const {
	return Resistor(R+r.R);
}

Resistor Resistor::operator%(const Resistor& r) const {
	return Resistor(1/(1/R+1/r.R));
}

Resistor operator*(int n, const Resistor& r) {
	if(n <= 0) throw "DP1FGW";
	return Resistor(n*r.getR());
}