C_CPP/11_PUTT/CopyOnWrite/LargeCowMatrix.cpp

#include <iostream>
#include "LargeCowMatrix.h"

int LargeCowMatrix::instanceCounter = 0;

LargeCowMatrix::LargeCowMatrix() : value(-1), referenceCounter(0){
    instanceCounter++;
}

LargeCowMatrix::LargeCowMatrix(int value) : value(value), referenceCounter(0){
    instanceCounter++;
}

LargeCowMatrix::LargeCowMatrix(const LargeCowMatrix& source) : value(source.value), referenceCounter(source.referenceCounter){
    instanceCounter++;
}

LargeCowMatrix::~LargeCowMatrix() {
    instanceCounter--;
}

LargeCowMatrix::operator int() {
    return value;
}

LargeCowMatrix LargeCowMatrix::operator+(const LargeCowMatrix &other) {
    return LargeCowMatrix(value + other.value);
}

LargeCowMatrix &LargeCowMatrix::operator++(int) {
    value++;
    return *this;
}

bool LargeCowMatrix::operator==(const LargeCowMatrix &other) {
    return this->value == other.value;
}

bool LargeCowMatrix::operator!=(const LargeCowMatrix &other) {
    return !(*this==other);
}

bool LargeCowMatrix::instanceCountExceeds(int max) {
    bool result = instanceCounter>max;
    if(result)
        std::cout << LargeCowMatrix::instanceCounter << " > max=" << max << std::endl;
    return result;
}