Explanation of Solution
Returning a pointer from the function:
If the reference pointer exists in the function, then only the function returns the pointer from the function.
Circumstance for successful return of a pointer:
The circumstances for returning pointer successful are listed below:
- When a pointer is passed as an argument in a function that is called.
- When a pointer variable is defined locally within the function there may be possibility for the contents of the variables being destructed after execution of the function. This can cause unexpected results.
- When pointer gets chunk of memory allocated dynamically.
- When a variable is allocated dynamically, the contents will be available until the compiler executes the delete operation.
Example:
// Include the necessary headers
#include <iostream>
using namespace std;
//function prototype to get alphabets
char *getalphabets();
//function prototype to display the array elements
void disparray(char[], int);
//main method
int main()
{
//variable declaration
const int SIZE = 3;
// Get the alphabets from the user
char *chkname = getalphabets();
//Display the content of array
cout << "The alphabets you entered are : ";
// Function call to display the contents of the array
disparray(chkname, SIZE);
//return t...
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Starting Out With C++: Early Objects (10th Edition)
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