47 lines
2.1 KiB
C++
47 lines
2.1 KiB
C++
// Fig. 10.37: Commission.cpp
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// Commission member-function definitions.
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#include <fmt/format.h>
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#include <stdexcept>
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#include "Commission.h" // class definition
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// constructor
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Commission::Commission(double grossSales, double commissionRate)
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: m_grossSales{grossSales}, m_commissionRate{commissionRate} {
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if (m_grossSales < 0.0) {
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throw std::invalid_argument("Gross sales must be >= 0.0");
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}
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if (m_commissionRate <= 0.0 || m_commissionRate >= 1.0) {
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throw std::invalid_argument(
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"Commission rate must be > 0.0 and < 1.0");
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}
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}
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// calculate earnings
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double Commission::earnings() const {
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return m_grossSales * m_commissionRate;
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}
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// return string containing Commission information
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std::string Commission::toString() const {
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return fmt::format("gross sales: ${:.2f}; commission rate: {:.2f}",
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m_grossSales, m_commissionRate);
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}
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/**************************************************************************
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* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
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* Pearson Education, Inc. All Rights Reserved. *
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* *
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* DISCLAIMER: The authors and publisher of this book have used their *
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* best efforts in preparing the book. These efforts include the *
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* development, research, and testing of the theories and programs *
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* to determine their effectiveness. The authors and publisher make *
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* no warranty of any kind, expressed or implied, with regard to these *
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* programs or to the documentation contained in these books. The authors *
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* and publisher shall not be liable in any event for incidental or *
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* consequential damages in connection with, or arising out of, the *
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* furnishing, performance, or use of these programs. *
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**************************************************************************/
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