Assume aa is a pointer of int type, and has been allocated enough memory : int* aa = new int; Which line assign value 10 by using dereference and then release the memory correctly? Question 19 options: A. aa = 10; delete aa*; B. *aa = 10; delete aa; C. *aa = 10 delete []aa; D. aa = 10; delete [] aa;

Assume aa is a pointer of int type, and has been allocated enough memory : int* aa = new int; Which line assign value 10 by using dereference and then release the memory correctly? Question 19 options: A. aa = 10; delete aa; B. aa = 10; delete aa; C. *aa = 10 delete []aa; D. aa = 10; delete [] aa;

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter10: Pointers

Section: Chapter Questions

Problem 2PP

See similar textbooks

Similar questions

(a) Determine whether the following variable declaration is valid int INT; A Valid B Invalid (b) Determine whether the following variable declaration is valid. int *ptr; A Valid B Invalid (c) Which of the following statement about pointer is TRUE? A. A pointer variable is a variable used tostore an address B.A pointer holds the data, rather thanwhere to find the data C.The unary operator & is used to find anobject's value D.The unary operator * is used to find an object's address
1. Write a function called void swap with two parameters, which will receive the addressof x and y as pointer. The function should swap the value of x and y only if x is larger thany. Print the value of x and y after the function call. 2. Write a function called double getAverage(int *array, int SIZE), whereit accept the array as pointer, and return the average of the array. Print the returnedvalue from this function. Always use *array rather than subscript to access the arrayvalue.
a. Write a statement that declares votes to be pointer of type int. b. Write a C++ code that dynamically creates a two-dimensional array of 50 rows and 10 columns and votes contains the base address of that array. c. Write a C++code that outputs the data stored into the array votes one row per line. d. Write a C++ code that deallocates the memory space occupied by the two-dimensional array to which votes points.
1. Write a function named “getSumBeforeNegative” that takes in a pointer to the array of integers and its size. It will return the sum of all values before it sees a negative number. If there is no negative number in the list, it returns the sum of all numbers in the array.For example,int numList[] = {10,20,-1, 30);// will return 30int priceList[] = {10, 20, 30);// will return 60It must use pointers to integer instead of array index.Write a main program and show how this function is called and used.
The following code C++ uses pointers and produces two lines of output. What is the output? int v1 = 10; int v2 = 25; int* p1 = &v1; int* p2 = &v2; *p1 += *p2; p2 = p1; *p2 = *p1 + *p2; cout << v1 << " " << v2 << endl; cout << *p1 << " " << *p2 << endl; find line 1 and 2.
Assuming a char requires one byte, an int requires four bytes, and a pointerrequires four bytes, (a) How much storage does something of type struct studenttake? (assume only the items given) (b) How much storage does the variable pStudenttake? (c) How much storage does ptrs take if it is declared as struct student *ptrs[10] (array of pointers to students)? C Programming Please!
1: This program demonstrates the use of pointers. What is the output of this program? Assume we know that the initial address of x is 0012FF44. #include <iostream> using namespace std; int main() { int x=25; int *ptr; // pointer ptr=&x; cout<<x<<endl; cout<<*ptr<<endl; cout<<ptr<<endl; //Now we assign 100 to x *ptr=100; cout<<endl; cout<<"Now we assign 100 to x:"<<endl; cout<<x<<endl; cout<<*ptr<<endl; cout<<ptr<<endl; return 0; } Write down the output:
4. Declare an int pointer that points to another pointerAnswer:
6. Write a swap function, that swaps the values of two variables in main, but usepointers instead of reference parameters.7. Write a function that takes an array of ints and its size as arguments. It shouldcreate a new array that is the same size as the argument. It should set the values inthe new array by adding 10 to each element in the original array. The functionshould return a pointer to the new array. (Make sure you use dynamic memoryallocation) can i get answers for this two sub parts. thanks
The following code C++ uses pointers and produces two lines of output. What is the output? int v1 = 10; int v2 = 25; int* p1 = &v1; int* p2 = &v2; *p1 += *p2; p2 = p1; *p2 = *p1 + *p2; cout << v1 << " " << v2 << endl; cout << *p1 << " " << *p2 << endl; . . . line 1 line 2 Submit
Pointers are by default passed by value in a function. Group of answer choices True False ================= Given the below code segment, which of the following would allow you to deallocate all memory allocated to the pointer numbers? int* numbers = new int[5]; Group of answer choices delete[] numbers; delete numbers; delete[5] numbers; None of these ========== Consider the following code: int arr[][4] = { {1, 2, 3, 4}, {7, 8, 9, 10} }; cout << arr[1] << endl; What will be the output? Group of answer choices 1 7 Address of 1 Address of 7 Compilation error: Second [] bracket missing with arr
•• R7.10Pointers are addresses and have a numerical value. You can print out the value of a pointer as cout << (unsigned)(p). Write a program to compare p, p + 1, q, and q + 1, where p is an int* and q is a double*. Explain the results.