a) string name1="Mat Kilau"; string name2="Awang"; // declare three pointer variables named hero1, hero2 and hero3 that can store the address of string data types // Assign hero1 to store address of name1 // Assign hero2 to store address of name2 //By using hero3 as a temporary pointer, switch the value of hero1 and hero2 without using the variables name1 and name2 iv. V. vi.
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- int *p; where p is a null pointer when:In C, in order to do operations to the data being referenced by a pointer you would need to use the (*) operator, which is called ______________ operator.pointers as Arguments:In the C programming language there is no pass-by-reference syntax to passa variable by reference to a function. Instead a variable is passed by pointer(just to be confusing, sometimes passing by pointer is referred to as pass byreference). This Practice Program asks you to do the same thing as C.Here is the header for a function that takes as input a pointer to an integer:1. void addOne (int ∗ptrNum )Complete the function so it adds one to the integer referenced by ptrNum.Write a main function where an integer variable is defined, give it an initialvalue, call addOne, and output the variable. It should be incremented by 1.
- c++ How do you declare a pointer that will hold an integer type?. Multiple choice. int *p; int &p; int p; int* p;5. pointers, structs and arrays Given the definition struct Animal { char * species; int age; }; and the following animals: 5 year old gorilla 11 year old giraffe 4 year old cobra 2 year old gnu 8 year old lion Give a description in word AND draw a picture for each of the following declarations. Be sure to include the complete data for the animals described above. a) struct Animal zoo[5]; b) struct Animal * zoo2[5]; c) struct Animal (* zoo3)[];In c++, please and thank you! Write a function that dynamically allocates an array of integers. The function should accept an integer argument indicating the number of elements to allocate. The function should return a pointer to the array.
- c++ programming language given the following variable declaration: double avg; write the required commands to declare a pointer, and then use it to display the value of the variable avg.Topic: pointers, dynamic array and command line arguments Write a complete C++ program named “showHelp” that accepts command line arguments. It checks whether there is a command line argument of “/help” or“/?” or “-help” followed by a topic number. It will print out “yes, topic number(<number>) if there is one. Otherwise, it prints out “no, topic number(N/A) For example, if you run this program with correct arguments as follows, it willprint out yes and its associated topic number respectivelyshowHelp /? 101showHelp /debug /help 102showHelp /print /help 103 /verboseshowHelp -verbose -debug -help And if you run the program with invalid arguments, it will print no, in all casesshowHelp -helpshowHelp 101 /?showHelp 101 102 /help /verboseshowHelp /? /help -helpNote: command line arguments are simply an array of pointers to C-string. example code: #include <iostream> using namespace std; int main(int argc, char** argv){...}Fill-in-the-Blank The __________ operator can be used to work with the variable a pointer points to.
- 1. Declare an integer pointer variable intPointer. Initialize it to point to an int variable named someInt.Assign the value 451 to someInt and output (cout) the variable someInt and output (cout) the value pointed to by intPointer.Write an assignment statement that indirectly stores 900 into the value pointed to by intPointer.Output (cout) the value pointed to by intPointer and output (cout) the variable someInt,2. Declare a pointer variable charArrPointer and initialize it to point to the first elementof a three-element char array named initials. Write assignment statements to store 'A', 'E', and 'W' into the first three elements of the array POINTED to by charArrPointer. Do NOT store any values directly into the array named initials.3. Output (cout) the data in array charArrPointer and the data in array initials. 4. Copy the following code into your program above main: struct NodeType {int num;NodeType* next;};5. Copy the following code into your program after main: NodeType…Description Write a short program that will define a function called make_book that will have 3 parameters: book_title book_author book_length with a default value of 100 It will return a dictionary with the keys 'title', 'author', and 'length'. You will then call this function 2 times (not in a loop): • The first time specifying all parameters by order: Ulysses by James Joyce with 762 pages • The second time specifying the title and author by keyword: The Odyssey by Homer And print the dictionary returned by the function in a simple print statement. Specification • You should submit a single file called MidtermExam3.py • It should follow the submission standards outlined above. The assignment name will be Midterm Exam 3 • Each print statement should be sent a single f-string as an argument or nothing at all. For example: • Don't do this: print("My variable is ", myvarl) • This is ok: print (f"My variable is (myvar1}") • This is ok: print() Hard-code There is nothing to hard-code in…Shared pointers keep a count of all of the shared pointers that appear in the program code. True False