Purpose of “delete” operator:

The purpose of “delete” operator is to clear or free the memory that was allocated using a “new” operator. The allocated memory gets de-allocated when “delete” operator is used.

Example:

//null pointer declaration

int *myptr = nullptr;

//dynamic allocation of memory

myptr = new int;

//free the memory ...

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Chapter 9, Problem 8RQE

Chapter 9, Problem 10RQE

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Chapter 9 Solutions

STARTING OUT W/C++,...(LL)-W/ACCESS

Ch. 9.5 - Prob. 9.1CP Ch. 9.5 - Write the definition statement for a variable...Ch. 9.5 - List three uses of the symbol in C++.Ch. 9.5 - What is the output of the following code? int x =...Ch. 9.5 - Rewrite the following loop so it uses pointer...Ch. 9.5 - Prob. 9.6CP Ch. 9.5 - Prob. 9.7CP Ch. 9.5 - Is each of the following definitions valid or...Ch. 9.9 - Prob. 9.9CP Ch. 9.9 - Give an example of the proper way to call the...

Ch. 9.9 - Complete the following program skeleton. When...Ch. 9.9 - Look at the following array definition: const int...Ch. 9.9 - Assume ip is a pointer to an int. Write a...Ch. 9.9 - Prob. 9.14CP Ch. 9.9 - Prob. 9.15CP Ch. 9.9 - Prob. 9.16CP Ch. 9.9 - Prob. 9.17CP Ch. 9 - What does the indirection operator do?Ch. 9 - Look at the following code. int x = 7; int iptr =...Ch. 9 - So far you have learned three different uses for...Ch. 9 - Prob. 4RQE Ch. 9 - Prob. 5RQE Ch. 9 - Prob. 6RQE Ch. 9 - What is the purpose of the new operator?Ch. 9 - What happens when a program uses the new operator...Ch. 9 - Prob. 9RQE Ch. 9 - Prob. 10RQE Ch. 9 - Prob. 11RQE Ch. 9 - Prob. 12RQE Ch. 9 - Each byte in memory is assigned a unique...Ch. 9 - The _________ operator can be used to determine a...Ch. 9 - Prob. 15RQE Ch. 9 - The ________ operator can be used to work with the...Ch. 9 - Array names can be used as ________, and vice...Ch. 9 - Prob. 18RQE Ch. 9 - The ________ operator is used to dynamically...Ch. 9 - Under older compilers, if the new operator cannot...Ch. 9 - Prob. 21RQE Ch. 9 - When a program is finished with a chunk of...Ch. 9 - You should only use pointers with delete that were...Ch. 9 - Prob. 24RQE Ch. 9 - Look at the following array definition: int...Ch. 9 - Prob. 26RQE Ch. 9 - Assume tempNumbers is a pointer that points to a...Ch. 9 - Look at the following function definition: void...Ch. 9 - Prob. 29RQE Ch. 9 - Prob. 30RQE Ch. 9 - Prob. 31RQE Ch. 9 - T F The operator is used to get the address of a...Ch. 9 - T F Pointer variables are designed to hold...Ch. 9 - T F The symbol is called the indirection...Ch. 9 - T F The operator dereferences a pointer.Ch. 9 - T F When the indirection operator is used with a...Ch. 9 - T F Array names cannot be dereferenced with the...Ch. 9 - Prob. 38RQE Ch. 9 - T F The address operator is not needed to assign...Ch. 9 - T F You can change the address that an array name...Ch. 9 - T F Any mathematical operation, including...Ch. 9 - T F Pointers may be compared using the relational...Ch. 9 - T F When used as function parameters, reference...Ch. 9 - T F The new operator dynamically allocates memory.Ch. 9 - T F A pointer variable that has not been...Ch. 9 - Prob. 46RQE Ch. 9 - T F In using a pointer with the delete operator,...Ch. 9 - Prob. 48RQE Ch. 9 - Prob. 49RQE Ch. 9 - int x, ptr = nullptr; ptr = x;Ch. 9 - Prob. 51RQE Ch. 9 - Prob. 52RQE Ch. 9 - Prob. 53RQE Ch. 9 - float level; int fptr = level;Ch. 9 - Prob. 55RQE Ch. 9 - Prob. 56RQE Ch. 9 - Prob. 57RQE Ch. 9 - Prob. 58RQE Ch. 9 - int pint = nullptr; pint = new int[100]; //...Ch. 9 - Prob. 60RQE Ch. 9 - Prob. 61RQE Ch. 9 - Prob. 62RQE Ch. 9 - Array Allocator Write a function that dynamically...Ch. 9 - Test Scores #1 Write a program that dynamically...Ch. 9 - Drop Lowest Score Modify Problem 2 above so the...Ch. 9 - Test Scores #2 Modify the program of Programming...Ch. 9 - Prob. 5PC Ch. 9 - Case Study Modification #1 Modify Program 9-19...Ch. 9 - Case Study Modification #2 Modify Program 9-19...Ch. 9 - Mode Function In statistics, the mode of a set of...Ch. 9 - Median Function In statistics, when a set of...Ch. 9 - Reverse Array Write a function that accepts an int...Ch. 9 - Array Expander Write a function that accepts an...Ch. 9 - Element Shifter Write a function that accepts an...Ch. 9 - Movie Statistics Write a program that can be used...

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Solution Summary: The author explains the purpose of "delete" operator, which is to clear or free the memory that was allocated using a new operator.

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Chapter 9 Solutions