C++ Programming: From Problem Analysis to Program Design
C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN: 9781337102087
Author: D. S. Malik
Publisher: Cengage Learning
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Chapter 12, Problem 10SA

Explanation of Solution

The corrected program is given below with errors and corrections explained in the in-lined comments:

#include <iostream> 

#include <iomanip>

using namespace std; 

int main()  

{  

    //declare double pointer variables

    double *baseRadius;

    double *height;

    //set the print output format

    cout << fixed << showpoint << setprecision(2);

    //allocate memory of type double and store the 

    //address of the allocated memory in baseRadius

    baseRadius = new double;

    //store 1.5 in the allocated memory

    *baseRadius = 1.5;

    //allocate memory of type double and store the 

    //address of the allocated memory in height

    height = new double;

    //store the value of the RHS expression in the allocated memory

    //RHS = 2 &*#x00A0;(1.5) = 3.0

    *height = 2 &*#x00A0;(*baseRadius);

    //allocate fresh memory of type double and store the 

    //address of the allocated memory in baseRadius

    //the earlier address referred to by baseRadius now

    //becomes a case of leaked memory

    //so it is essential to first deallocate the memory

    //using delete operator

    delete baseRadius;

    baseRadius = new double;

    //store 4.0 in the allocated memory

    *baseRadius = 4.0;

    //the code prints the address stored in baseRadius

    //instead of the actual radius of the base

    ///cout << "Radius of the base: " << baseRadius << endl;

    //so the correct code is

    cout << "Radius of the base: " << *baseRadius << endl;

  �...

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