2. Write a C program to swap two numbers using pointers and functions. How to swap two numbers using call by value and call by reference method.
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- 2-Write a C++ program to swap two numbers using pointers and functions. How to swaptwo numbers using call by reference method. Logic to swap two number using pointers in C++program.ExampleInputInput num1: 10Input num2: 20OutputValues after swapping:Num1 = 20Num2 = 10Write a C++ program that swaps two values by passing pointers as arguments to function.In C++, If you had the double-pointer above and also had these variables: type x, * q; And had executed these statements: q = &x; p = &q; How would a function given p by value be able to change the contents of x?
- Write a swap function, that swaps the values of two variables in main, but use pointers instead of reference parameters. WRITE IN C++For C++, How would I call or use a function that is passed by pointer or a reference? How would I use these in this example below? I understand how passing by value works, but when it comes to passing by references and pointers, that is when I get confused. #include <iostream> using namespace std; // passing by reference in this function void pass_ref(int &ref); // passing by pointer in this function void pass_ptr(int* ptr);Why is it generally bad to return a pointer from a function in C? How does using dynamic memory give us the ability to safely return a pointerfrom a function?
- Write a program in C that initializes one each of the basic C data types and then print them out. Don't forget pointer. Also print the size of each.Write a C program to swap two integers you should write a function named as swap_intand it should accept arguments as pointers then it should swap integers bydereferencing those pointers.What is the data type of pointer variables? Suppose that we don‘t know the name of a variable but we do know its address. Can we access the contents of that variable? Explain briefly. Subject: C++
- A pointer variable is a kind of variable in C++. Do you know how it is utilised?In C++, when using passing by pointers or references, how does that work? I know that using them is like copying the variable, but when passing by value, what confuses me is that it copies the values, so I am confused on what is the difference? And to also how to differentiate or find out how they are different?Write a C ++ program to make a calculator that performs division and subtraction of five numbers only then print the result on screen, using functions call by pointer?
