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Chapter 9: Problem 27

Assume that tempNumbers is a pointer that points to a dynamically allocated array. Write code that releases the memory used by the array.

Short Answer

Expert verified
Answer: To release the memory used by the array, you can use the "delete" keyword followed by square brackets and set the pointer to nullptr. The code snippet would look like: ```cpp delete[] tempNumbers; tempNumbers = nullptr; ```

Step by step solution

01

1. Use the delete keyword

To release the memory used by the array pointed by "tempNumbers", we will use the "delete" keyword followed by square brackets, as it is an array. ```cpp delete[] tempNumbers; ```
02

2. Set the pointer to nullptr

After deallocating the memory, it's a good practice to set the pointer to nullptr. This prevents the pointer from becoming a dangling pointer, which could cause undefined behavior if dereferenced. ```cpp tempNumbers = nullptr; ``` Now, putting both steps together, we get the complete solution: ```cpp delete[] tempNumbers; tempNumbers = nullptr; ```

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Most popular questions from this chapter

The ______ operator can be used to determine a variable's address.

What happens when a program uses the new operator to allocate a block of memory, but the amount of requested memory isn't available? How do programs written with older compilers handle this?

True or False T \(F \quad\) Each byte of memory is assigned a unique address.

What are two advantages of declaring a pointer parameter as a constant pointer?

Each of the following definitions and program segments has errors. Locate as many as you can. int values[20], *iptr = nullptr; iptr = values; iptr *= 2;
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