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Software Design Using C++

Review of Functions and Parameters

Answering the Question

Let's first rewrite the CalculateCost function. Here are possible answers to this. Click on the one that you think is the best solution.

Answer A


float CalculateCost(float Price, int NumPurchased)
   {
   float TempCost;

   TempCost = Price * NumPurchased;
   if (TempCost > 80.0)
      TempCost = TempCost - 5.0;

   return TempCost;
   }

Answer B


void CalculateCost(float & Price, int & NumPurchased, float & Cost)
   {
   Cost = Price * NumPurchased;
   if (Cost > 80.0)
      Cost = Cost - 5.0;
   }

Answer C


void CalculateCost(float Price, int NumPurchased, float Cost)
   {
   Cost = Price * NumPurchased;
   if (Cost > 80.0)
      Cost = Cost - 5.0;
   }

Answer D


void CalculateCost(float Price, int NumPurchased, float & Cost)
   {
   Cost = Price * NumPurchased;
   if (Cost > 80.0)
      Cost = Cost - 5.0;
   }

You can go back to the overall review listing: Review of Introductory Topics.

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Author: Br. David Carlson with contributions by Br. Isidore Minerd
Last updated: January 15, 2013
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