This is to ensure that it is available globally and printRecords() can use it. If x and y are too large, addition and multiplication may go out of the integer range.3) When we use pointers to variable and make a function swap, all the above methods fail when both pointers point to the same variable. Here is the simple program for sum of two numbers using function in C++. Now a for loop will go from i=0 till 5. Incrementing by 1 would increase the address by sizeof(student) bytes. Hence, marks and &marks[0] point to the 0th array (element), and the addition of 1 point to the 1st array. Each of the blocks is of size 4 bytes. To make sure that we do not have a wild pointer, we can initialize a pointer with a NULL value, making it a null pointer. We can use ptr_ptrvar to access the address of ptr_var and use double dereferencing to access var. In the function call multiply(x,y), we passed the value of x and y ( of main()), which are actual arguments, to multiply(). Would multiplying or dividing two pointers (having addresses) make sense? Problems with the above methods 1) The multiplication and division-based approach doesnt work if one of the numbers is 0 as the product becomes 0 irrespective of the other number. You are actually adding (or subtracting) n-times the size of the data type of the variable being pointed bytes. Here in this problem we shall update a with a+b and b with a-b. This program is divided in two functions: addition and main.Remember that no matter the order in which they are defined, a C++ program always starts by calling main.In fact, main is the only function called automatically, and the code in any other function is only executed if its function is called from main (directly or indirectly). An increment to it changes the value stored at marks[i][j]. As you can see in the above code, initially we are declaring the function prototype for the subtraction of two numbers with name Num_subtraction of integer return type with two integer arguments named as i and j into the function. Your email address will not be published. b=int(input(please enter second number: )) In this tutorial, we will discuss Python program to add two number using function, In this topic, we will learn a simple concept of how to add two numbers usingthefunction in the Python programming language. 2) Each C program must have at least one function, which is main(). If you can recollect them, well done! Since the address it points at is no longer reserved, using it will lead to unexpected results. If we change the value at any of the pointer(s) using ptr_ptrptrvar or ptr_ptrvar, the pointer(s) will stop pointing to the variable. C Program to find Subtraction of two numbers In this article, we will discuss the concept of the C program to find Subtraction of two numbers In this post, we are going to learn how to write a program find the subtraction of two numbers in C programming language Code to find the subtraction of two numbers Subtract two integer number The program use Array Addition using Class Function; Two Dimensional Array Subtraction; Three Dimensional Array Example; Structure Examples. Addition of 5 + 7 = 12 Subtraction of 5 - 7 = -2 Multiplication of 5 * 7 = 35 Division of 5 / 7 = 0.714286 The syntax for declaring a pointer to function is: The declaration for the pointer p to function multiply() can be read as ( following operator precedence) - p is a pointer to function with two integer pointers ( or two pointers to int) as parameters and returning a pointer to int. As you can see in the above code, initially we are declaring the function prototype for the subtraction of two numbers with name Num_subtraction of integer return type with two integer arguments named as i and j into the function. top will contain the base addresses of all the respective names. A null pointer points at nothing, or at a memory address that users can not access. The above search function can be used for any data type by writing a separate customized compare(). There is no way to convert the pointer back to its original value. Don't they say that the curve of learning is a circle! The values of the actual arguments are passed or copied to the formal arguments x and y ( of multiply()). A dangling pointer points to a memory address which used to hold a variable. A two-dimensional array of characters or an array of strings can also be accessed and manipulated as discussed before. Pointer to function in C. As we discussed in the previous chapter, a pointer can point to a function in C. However, the declaration of the pointer variable must be the same as the function. Also in the same program we can define as many prototype we want but they should differ in either name or argument list. C String Programs C Program to Print String C Hello World Program C Program to Add n Number of Times C Program to Generate Random Numbers C Program to Check whether the Given Number is a Palindromic C Program to Check whether the Given Number is a Prime C Program to Find the Greatest Among Ten Numbers C Program to Find the Greatest Number of Three Donations to freeCodeCamp go toward our education initiatives, and help pay for servers, services, and staff. & is address of operator and * is value at address operator. Array Addition using Class Function; Two Dimensional Array Subtraction; Three Dimensional Array Example; Structure Examples. C String Programs C Program to Print String C Hello World Program C Program to Add n Number of Times C Program to Generate Random Numbers C Program to Check whether the Given Number is a Palindromic C Program to Check whether the Given Number is a Prime C Program to Find the Greatest Among Ten Numbers C Program to Find the Greatest Number of Three Addition of 5 + 7 = 12 Subtraction of 5 - 7 = -2 Multiplication of 5 * 7 = 35 Division of 5 / 7 = 0.714286 So fundamental they just call it "C." These articles will walk you through the basics of one of the most foundational computer languages in the world. If the structure is defined inside main(), its scope will be limited to main(). If we dereference it again, we will get the value stored in that address. Output of the program: Download Add numbers program.. Play with them. Let us look at what happens when we write int myArray[5];. We can get the value of the variable digit from its address using another operator * (asterisk), called the indirection or dereferencing or value at address operator. 5 :: for Modulus. In the function, we traverse through the array using loop and pointer. C String Programs C Program to Print String C Hello World Program C Program to Add n Number of Times C Program to Generate Random Numbers C Program to Check whether the Given Number is a Palindromic C Program to Check whether the Given Number is a Prime C Program to Find the Greatest Among Ten Numbers C Program to Find the Greatest Number of Three The code sample also shows an alternative way to reference containers using the _ = C; syntax. Students can refer to the Big Data Lecture Notes For CSE as per the latest and updated syllabus from this article.. Pointer to function in C. As we discussed in the previous chapter, a pointer can point to a function in C. However, the declaration of the pointer variable must be the same as the function. C Program to find Subtraction of two numbers In this article, we will discuss the concept of the C program to find Subtraction of two numbers In this post, we are going to learn how to write a program find the subtraction of two numbers in C programming language Code to find the subtraction of two numbers Subtract two integer number The program use Adding 1 to ptrStudent1 would point to student[1]. Modulus of 5 % 7 = 5. Given two variables, x, and y, swap two variables without using a third variable. C String Programs C Program to Print String C Hello World Program C Program to Add n Number of Times C Program to Generate Random Numbers C Program to Check whether the Given Number is a Palindromic C Program to Check whether the Given Number is a Prime C Program to Find the Greatest Among Ten Numbers C Program to Find the Greatest Number of Three Appropriate typecasting is necessary. The syntax of the C programming language is the set of rules governing writing of software in the C language.It is designed to allow for programs that are extremely terse, have a close relationship with the resulting object code, and yet provide relatively high-level data abstraction.C was the first widely successful high-level language for portable operating-system development. Since ptr_ptrvar is of type int**, the declaration for ptr_ptrptrvar will be. Here, we only require ( 58 (sum of bytes of names) + 12 ( bytes required to store the address in the array) ) 70 bytes. Similarly, we can create an array of pointers to function. The C Language Handwritten Notes PDF is Call by reference helps us achieve this. The following programs will explain both the methods. Therefore, though c ( local to main()) stores the address of the product, the data there is not guaranteed since that memory has been deallocated. 1 addition of two numbers in Java using methods. Pointers and Arrays. Auxiliary Space: O(1). Required fields are marked *. The above search function can be used for any data type by writing a separate customized compare(). These are simple program, you can learn them easily. Thus, if the address of myArray[0] is 100 (say), the address of the rest of the blocks would be 104, 108, 112, and 116. These functions are declared in lualib.h and should not be called directly: you must call them like any other Lua C function, e.g., by using lua_call. We can use pre-defined python function input() to takes input from the user. This is the new part. If x and y are too large, addition and multiplication may go out of the C String Programs C Program to Print String C Hello World Program C Program to Add n Number of Times C Program to Generate Random Numbers C Program to Check whether the Given Number is a Palindromic C Program to Check whether the Given Number is a Prime C Program to Find the Greatest Among Ten Numbers C Program to Find the Greatest Number of Three You can make a tax-deductible donation here. Inside the main() function you have to declare integer type variables name 'I', 'j', 'k', 'space' and assign the value 10 to the variable 'space'. Then you have o declare two integer variables j and j and initialized them with value 0. 2) Both Arithmetic solutions may cause an arithmetic overflow. Thus, marks[i][j] is the same as *(marks[i] + j). Inside this, there will be another for loop which is nested for and will go from k=0 till k < space. Based on the values you pass, the different function will be called that serve different purposes. 3) There is no limit on number of functions; A C program can have any number of functions. In this topic, we will learn a simple concept of how to add two number using the function in C programming language. Modulus of 6 % 8 = 6, C++ Program to Perform Arithmetic Operations, Java Program to Perform Arithmetic Operations, Python Program to Perform Arithmetic Operations. In this post, we will learn about how to perform addition, subtraction multiplication, division of any two numbers using if else statements in C programming. From our discussion on 1-D arrays, marks[i] is the same as *(marks + i). Input() function returns a string value. By signing up, you agree to our Terms of Use and Privacy Policy. 2 :: for Substraction In this article, we solved this problem in fivemethods: C Program to Enter Marks of Five Subjects and Calculate Percentage and Grade, C++ Program to Calculate Percentage and Grade, Java Program to Calculate Grade of students, Python Program to Calculate Total Marks Percentage and Grade of a Student, 1 :: for Addition 1.1.1 Calculate the total value of two integer number using the method; 1.1.2 Calculate total value of two integer number using the method with the return value; 1.2 Calculate total value of two floating point number 2) Each C program must have at least one function, which is main(). We can rewrite the above program using call by reference as well. We can again access ptr_ptrvar, ptr_var and var using ptr_ptrptrvar. We can store the two-dimensional array to string top using a pointer array and save memory as well. The idea is to get a sum in one of the two given numbers. The program allows the user to enter a String and then it counts the number of white space in the given string using do-while loop in C programing language. 6 Consider the following example to make a pointer pointing to the function. In the expression (z = x + y), integer overflow may occur if the sum is greater than the maximum value that the variable z can store. For the purposes of these tables, a, b, and c represent valid values (literals, values from variables, or return value), object names, or lvalues, as appropriate.R, S and T stand for any type(s), and K for a class type or enumerated type.. Arithmetic operators. 1.0.1 Add two integer number using the function; 1.0.2 Add two integer number using the function get input from the user; 1.0.3 Add two floating point number using the function; 1.0.4 Add two float numbers using the function get input from the user; 1.1 Related posts: 1.2 Related 1 Python program to add two number using function. We can write only one line to swap two numbers. ValueError: could not convert string to float: NO_INPUT, Take two numbers (integers) as one input and print the addition in one line .can any one give answer for this question, Your email address will not be published. But, they are one of the features which make C an excellent language. C Program to Enter Two Numbers and Perform All Arithmetic Operations. Required fields are marked *. The x and y of multiply() are different from those of main(). To store addresses in heap, we can use library functions malloc() and calloc() which allocate memory dynamically. Without them, these would be an array of pointers. For the purposes of these tables, a, b, and c represent valid values (literals, values from variables, or return value), object names, or lvalues, as appropriate.R, S and T stand for any type(s), and K for a class type or enumerated type.. Arithmetic operators. The OG. To know more about swapping two variables in one line, click here. Method-1 : With Hardcoded Inputs #include using namespace std; // driver int main() { // first number is 5 int x = 5; // second number is 6 int y = 6; // resultant number int subtract = x - y; cout << subtract; return 0; } At last in the function definition you can see we are giving the logic to perform addition and store it in results. Since ptr_var is of type int *, to store its address we would have to create a pointer to int *. The C Language Handwritten Notes PDF is The syntax for storing a variable's address to a pointer is: For our digit variable, this can be written like this: This can be read as - A pointer to int (integer) addressOfDigit stores the address of(&) digit variable. Such pointers are known as wild pointers. The above problem can be avoided by putting a condition before the swapping. 2) Both Arithmetic solutions may cause an arithmetic overflow. After that, we are taking input from the users then storing the multiplication results of the two given numbers in output. They can straightforwardly jump to revision for their exam. 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Then you have to use the printf() function to display this message - "Enter the value of x and y: ". Similarly, we can write a C program that performs subtraction, multiplication, and division of two numbers.. Overflow in addition. We will modify a program discussed earlier in this section. They store a garbage value (that is, memory address) of a byte that we don't know is reserved or not (remember int digit = 42;, we reserved a memory address when we declared it). The program will request the user to enter two number digits and the user select an operator to perform the addition, subtraction, multiplication, and division of the entered The original. already we learned the same this concept using the operator in a simple way. Below is the implementation of the above approach. 8, Addition of 6 + 8 = 14 So this can be achieved through function overloading. C String Programs C Program to Print String C Hello World Program C Program to Add n Number of Times C Program to Generate Random Numbers C Program to Check whether the Given Number is a Palindromic C Program to Check whether the Given Number is a Prime C Program to Find the Greatest Among Ten Numbers C Program to Find the Greatest Number of Three In the expression (z = x + y), integer overflow may occur if the sum is greater than the maximum value that the variable z can store. Auxiliary Space: O(1). 4) A function can call itself and it is known as Recursion. C Program to Arithmetic operation. Inside this, there will be another for loop which is nested for and will go from k=0 till k < space. Subtraction of matrices in C++. // Bitwise XOR based methodx = x ^ x; // x becomes 0x = x ^ x; // x remains 0x = x ^ x; // x remains 0// Arithmetic based methodx = x + x; // x becomes 2xx = x x; // x becomes 0x = x x; // x remains 0. C code to count space of the given string using do-while loop. It can be reused to point at any data type we want to. Such an array would simply be a collection of addresses. Swap two numbers using pointers. Using our old friend * or using -> ( infix or arrow operator). 1 addition of two numbers in Java using methods. Here, we have declared a pointer ptrStudent of type struct records. Refer this book for more details. Output of the program: Download Add numbers program.. Thus, incrementing to it by 1 ( = 5 arrays X 3 integers each X 4 bytes = 60) results in an increment by 60 bytes. Java program to multiply two numbers using method, addition of two numbers in Java using method, PHP function to check whether a number is prime or not, PHP program to check whether a number prime or not, C# function to check a number is prime or not, C# program to check if a number is prime or not, Python program to add two number using function, Python program to calculate electricity bill, C++ program to count the total number of characters in the given string, Python program to count vowels or consonants of the given string, C Program to largest and smallest among three numbers, Python program to check a number is even or odd using function, C program to add two numbers using function. Stay tuned, the concept of function Two-dimensional arrays are an array of arrays. If x and y are too large, addition and multiplication may go out of the Since the name of an array itself is a pointer to the first element, we send that as an argument to the function greatestOfAll(). List Files in Directory; Size of File; Write in File; Reverse Content of File; Copy File to Another File; Important Concepts . Write a Program to print numbers 1 to n using while loop in C language. Auxiliary Space: O(1). Also structure must be declared before the function declaration as well. This program performs addition of two numbers using pointers. The program will request the user to enter two number digits and the user select an operator to perform the addition, subtraction, multiplication, and division of the entered In this article, we have discussed various methods to Subtract two numbers in C++. The manipulation of strings or integers becomes a lot easier when using an array of pointers. Now, to remember the block, it is assigned with an address or a location number (say, 24650). Few Points to Note regarding functions in C: 1) main() in C program is also a function. sum=a+b; A function prototype is a declaration in the code that instructs the compiler about the data type of the function, arguments and parameter list. Using %p, the address is displayed as a hexadecimal value. Both methods return the output as 15. At last in the function definition you can see we are giving the logic to perform subtraction and store it in results. Since the name of the function is also a pointer to the function, the use of & is not necessary. Multiplication of 5 * 7 = 35 They do not store any value but the address of memory blocks. 3) There is no limit on number of functions; A C program can have any number of functions. We pass the address or reference of the variables to the function which does not create a copy. We will need a character pointer variable to store its address. In this article, you will learn how to perform all arithmetic operationsof two integer numbers in the Cprogramming language. Strings. Let us work through a series of programs to understand different subscripted expressions. Time Complexity: O(1). 4. That is, they have the same type and number of parameters and return types. Subtraction of matrices in C++. They can straightforwardly jump to revision for their exam. This C program is used to swapping two numbers, using a temporary variable. The first example can be read as - ptr1 is a pointer to an array of 5 int(integers). Void pointers cannot be dereferenced as any other pointer. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS. 3 :: for Multiplication Your email address will not be published. Problems with the above methods1) The multiplication and division-based approach doesnt work if one of the numbers is 0 as the product becomes 0 irrespective of the other number.2) Both Arithmetic solutions may cause an arithmetic overflow. It is very easy to think that the output would be 15. Since we created stored values in a new location, it costs us memory. already we know the same concept using the operator in a simple way. NARESH KUMAR SHARMA, Your email address will not be published. C Program to Arithmetic operation. Addition of 5 + 7 = 12 Subtraction of 5 - 7 = -2 Multiplication of 5 * 7 = 35 Division of 5 / 7 = 0.714286 Thus, marks[i][j] can be written as *(*(marks + i) + j) in terms of pointers. sum=x+y; a=int(input(please enter first number)) Phew! c =float(input(input the number two: ))#input from user for num2 C program to add two numbers using the function. If you read this far, tweet to the author to show them you care. Subtraction of matrices in C++. It returns a pointer to int as well which stores the address where the product is stored. In the end, the return 0; statement is used to return an integer type value back to main(). Similar to the arrays we have seen, name and &name[0] points to the 0th character in the string, while &name points to the whole string. We can use pre-defined python function input() to takes input from the user. List Files in Directory; Size of File; Write in File; Reverse Content of File; Copy File to Another File; Important Concepts . I am a fresher you are requested to send me a fully solved program like sum of two integers. Basic Example of Pointer & Array; 3) There is no limit on number of functions; A C program can have any number of functions. Time Complexity: O(1). A string is a one-dimensional array of characters terminated by a null(\0).When we write char name[] = "Srijan";, each character occupies one byte of memory with the last one always being \0.. Enter a string space counter code in C language Total white space:5 . Dereferencing it would mean the value at that address. The value of the location number is not important for us, as it is a random value. 4) A function can call itself and it is known as Recursion. In the earlier declaration, we required 90 bytes to store the names. Like pointer to different data types, we also have a pointer to function as well. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); C Program to compute Quotient and Remainder of two numbers, Divide two numbers without using Arithmetic operator in Java, Cpp program to find factorial using function, Python program to add two number using function, Add two integer number using the function, Add two integer number using the function get input from the user, Add two floating point number using the function, Add two float numbers using the function get input from the user, March 17, 2020 at2:14 pm, June 19, 2020 at3:15 pm, June 21, 2020 at6:24 am, September 28, 2020 at4:04 pm, February 6, 2022 at5:59 am. * A pointer variable is a special variable in the sense that it is used to store an address of another variable. They are declared by writing the variable's type and name, This program performs addition of two numbers using pointers. The C Language Handwritten Notes PDF: Students searching high and low for the C Language Notes can access excellent notes here to save their time. 1 addition of two numbers in Java using methods. The program allows the user to enter a String and then it counts the number of white space in the given string using do-while loop in C programing language. Start Your Free Software Development Course, Web development, programming languages, Software testing & others. The code sample below uses the std.testing.refAllDecls(@This ()) function call to reference all of the containers that are in the file including the imported Zig source file. Thus, the name of an array is itself a pointer to the 0th element of the array. Then you have to define the main() function and it has been declared nothing so by default it returns integer. But the memory address can be displayed in integers as well as octal values. And why are prime + 1 and &prime[0] + 1 still equal? In this article, we have discussed various methods to Subtract two numbers in C++. Again, another printf() is used to display the value of 'x' and 'y' before swapping. Method-1 : With Hardcoded Inputs #include using namespace std; // driver int main() { // first number is 5 int x = 5; // second number is 6 int y = 6; // resultant number int subtract = x - y; cout << subtract; return 0; } In this topic, we will learn a simple concept of how to add two number using the function in C programming language. Notice we used %d as the format identifier for addressOfDigit. Pointer and arrays exist together. Enter any two positive integer numbers: 5 7. Also, name[i] can be Also, name[i] can be By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy, Explore 1000+ varieties of Mock tests View more, Special Offer - C Programming Training Course Learn More, 600+ Online Courses | 50+ projects | 3000+ Hours | Verifiable Certificates | Lifetime Access, C Programming Training (3 Courses, 5 Project), C++ Training (4 Courses, 5 Projects, 4 Quizzes), Java Training (41 Courses, 29 Projects, 4 Quizzes), Software Development Course - All in One Bundle. So, &prime, prime, and &prime[0] all give the same address, right? For example, see this implementation of QuickSort where we may swap a variable with itself. print(The sum is,add_num(b,c))#call te function, input the number one: Traceback (most recent call last): Generally, it may be put only between digit characters. points to the 0th element of the ith array, gives the value of the jth element of the ith array, Pointer Expression To Access The Elements, You can assign the value of one pointer to another only if they are of the same type (unless they're typecasted or one of them is. We and our partners use cookies to Store and/or access information on a device.We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development.An example of data being processed may be a unique identifier stored in a cookie. Write a program to accept values of two numbers and print their subtraction. Well, this is not completely correct. All you have to do is define a prototype in the code and then call it anytime by using the function name. When we call the function we shall have to pass the address of these two variables. In this article, we will go from the very basics of pointers to their usage with arrays, functions, and structure. Class methods are another example implemented using function pointers. Division of 5 / 7 = 0.714286 To add a library, search for one you want and select the version in the dropdown. If x and y are too large, addition and multiplication may go out of the The syntax of the C programming language is the set of rules governing writing of software in the C language.It is designed to allow for programs that are extremely terse, have a close relationship with the resulting object code, and yet provide relatively high-level data abstraction.C was the first widely successful high-level language for portable operating-system development. The numbers can then be swapped using the sum and subtraction from the sum. After its execution is completed, the memory allocated to multiply() is deallocated. C String Programs C Program to Print String C Hello World Program C Program to Add n Number of Times C Program to Generate Random Numbers C Program to Check whether the Given Number is a Palindromic C Program to Check whether the Given Number is a Prime C Program to Find the Greatest Among Ten Numbers C Program to Find the Greatest Number of Three Program to count the number of words, characters, alphabets, vowels, consonants and digit in a line of text substring function in C++ | Extract Substring Program C++. Program to compare two strings are equal or not. Enter a string space counter code in C language Total white space:5 . Class methods are another example implemented using function pointers. Pointers are arguably the most difficult feature of C to understand. Input() function returns a string value. Lets take a look at what will happen in this case if both are pointing to the same variable. b =float(input(input the number one: ))#input from user for num1 To call the function Num_addition function is used again. Few Points to Note regarding functions in C: 1) main() in C program is also a function. on my e mail. The code sample below uses the std.testing.refAllDecls(@This ()) function call to reference all of the containers that are in the file including the imported Zig source file. Like integer pointers, array pointers, and function pointers, we have pointer to structures or structure pointers as well. Program to compare two strings are equal or not. So fundamental they just call it "C." These articles will walk you through the basics of one of the most foundational computer languages in the world. Let's answer these questions. The scanf will take the value of 'x' and 'y' from the user using the scanf(). At last in the function definition you can see we are giving the logic to perform multiplication and store it in results. 1.1 Calculate the total value of the two integer number. Generally, it may be put only between digit characters. Also removing * from the function call doesn't affect the program. Wouldn't it be better if we could perform the same task without wasting space? Cricket. if you know click here Python program to add two numbers, When the above code is compiled and executed, it produces the following results, This is the program asked input from user two numbers and displays the sum of two numbers entered by the user. 4. #include #include main() Write a program to print factorial of a given number using recursive function in C language. Sort string in C++. Multiplication and division can also be used for swapping. Tweet a thanks, Learn to code for free. has higher precedence over *. We can use ptrStudent1 with a loop to traverse through the elements and their members. & is address of operator and * is value at address operator. Notify me of follow-up comments by email. All arithmetic operators exist in C and C++ and can be overloaded in C++. Swap two numbers using pointers. So we can use float() function to convert from string to float data type (shown in line 6 and 7). Write a program to accept values of two numbers and print their subtraction. This is a guide to Function Prototype in C. Here we discuss the introduction to Function Prototype in C along with respective examples for better understanding. Then you have o declare two integer variables j and j and initialized them with value 0. This pointer points to whole array rather than its elements. The reason they should be discussed together is because what you can achieve with array notation (arrayName[index]) can also be achieved with pointers, but generally faster. In this post, we will learn about how to perform addition, subtraction multiplication, division of any two numbers using if else statements in C programming. To call the function Num_subtraction function is used again. A void pointer can be used to point at a variable of any data type. Write a program to accept values of two numbers and print their subtraction. The automatic question that comes to the mind is what about pointer to pointer? We have already seen how to create an array of pointers to int, char, and so on. Well, it is a pointer to array. So this can be achieved through function overloading. Static variables can simply be created by using the keyword static before data type while declaring the variable. The original. C code to count space of the given string using do-while loop. This program is divided in two functions: addition and main.Remember that no matter the order in which they are defined, a C++ program always starts by calling main.In fact, main is the only function called automatically, and the code in any other function is only executed if its function is called from main (directly or indirectly). 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