oop-stock-portfolio.cpp

double OopStockPortfolio::getPortfolioValue()
{
    double returnVal = 0;
    std::for_each(stockPortfolio.begin(), stockPortfolio.end(), 
        [&returnVal](const StockPosition &a) { returnVal += (a.numShares * a.stockValue); });
    return returnVal;
}

double OopStockPortfolio::getPortfolioCost()
{
    double returnVal = 0;
    std::for_each(stockPortfolio.begin(), stockPortfolio.end(), 
        [&returnVal](const StockPosition &a) { returnVal += (a.numShares * a.stockAverageCost); });
    return returnVal;
}

double OopStockPortfolio::getTotalReturn()
{
    return (getPortfolioValue() / getPortfolioCost()) * 100 - 100.0;
}