he following program with struct student, which has name and age. There is a pointer to struct student *ptr, but does not assign a value to it. Then, there is a print statement for ptr->age. 1. Why does an error occur when the program is run?

Missing line of code please

C++ Double Pointer: Can you draw picture of what this means : Food **table? struct Food { int expiration_date; string brand; } Food **table; What is this double pointer saying? I know its a 2D matrix but I don't understand what I'm dealing with here. Does the statement mean that we have an array of pointers of type Food and what is the other * mean? I'm confused.

#include <iostream>using namespace std; struct Person{ int weight ; int height;}; int main(){ Person fred; Person* ptr = &fred; fred.weight=190; fred.height=70; return 0;} What is a correct way to subtract 5 from fred's weight using the pointer variable 'ptr'?

use c++ Programming language Write a program that creates a two dimensional array initialized with test data. Use any data type you wish . The program should have following functions: .getAverage: This function should accept a two dimensional array as its argument and return the average of each row (each student have their average) and each column (class test average) all the values in the array. .getRowTotal: This function should accept a two dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The function should return the total of the values in the specified row. .getColumnTotal: This function should accept a two dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a column in the array. The function should return the total of the values in the specified column. .getHighestInRow: This function should accept a two...

Submerging is the phenomenon wherein the pointer vanishes when you move it too quickly.

When you move the pointer too quickly, a phenomena known as submarineing happens when the cursor vanishes.

in c++ Write a function named "countTheSameAsLast" that accepts an array of pointers to Name objects and its array size. It will go through the array and return how many elements (int) in the array are the same as the last element and whether the first and the last elements are the same or not (bool). Please note that the objects pointed by elements in the array can be either Word or Item objects. Please show how you test with the list of mixed objects.

Pointers can be compared using the == operator. A) True B) False