In case of pass by reference The values of those variables are passed to the function so that it can manipulate O them The location of variable in memory is passed to the function so that it can use Q the same memory area for its processing Both of above O None of above O n
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- Call by value in programming means that a copy of variable value is pased from function calling part to function definition part. Call by reference means that an address of variables are passed from calling part to function definition. arrow_forward Step 2 Call by reference is used to avoid extra memory usage because in call by reference same variables addresses are passed. Any changes made will reflect back. So it doesn't require extra variable to hold data. Call by value in programming is used where memory storage is not concern. Scenario in which actual value must not be disturbed then in these type of cases, call by value is used. We can't use only one because user requirement changes. Sometimes user tella actual data should be preserved and he/she want any data processing, in such scenario programmers use call by value. Some users only want calculated result. In such cases, programmers use call by reference to preserve memory usage. So it is totally dependent on user…A variable defined inside a function has local significance only. A variable definedexternal to a function is global and may be read but not modified by a function, itshould be declared global in the function to be modified. Arguments passed to afunction may be in arbitrary order when the name of the parameter is specified uponcalling the function. These concepts are illustrate the code where thenumber of occurrences of a letter in a word is counted and returned along with anincremented value of an input variable.3. How we can pass pointer to a function? Make use of suitable programming elaborate your answer and what is the advantage of example to passing pointer to a function.
- Write a function whose prototype is void exchange(int *p, int *q);that takes two pointers to integer variables and exchanges the values in those variables.Given a function uint16_t func(int16_t x) write a function callPassedFunc() that takes two arguments: • a pointer to func • a int16_t and returns a uint16_t. A call to callPassed Func() should have the same effect and return value as a call to func(), as in the example. Note that it should not matter what func() does. To test this question, write a few random function bodies for func(). For example: Test uint16_t func(int16_t x) { return x/2; //Only an example could be anything. } int16_t arg = 10; uint16_t directRetVal= func(arg); uint16_t indirect RetVal = callPassed Func(&func, arg); printf("%d\n", directRetVal == indirectRetVal); Result 1Write a C++ program that asks your if he wants to store student’s data such as name, id (20i-xxxx) andaddress. Your program should be able to store data for any number of student but, efficiently utilizingthe memory.Your program must have the following function.1) TakingInput: Takes input from user regarding student name, id and address.2) StoringData: Data from TakingInput is then passed to this function where it(data) is stored in adata structure.
- Write a function f which takes three pointers to int variables (a, b, c). Then it should:-Set the first variable to the sum of values of the variables (a + b + c).-Set the second variable to difference between maximum and minimum of values ( max(a,b,c) - min(a,b,c) )-Set the third variable to median of a, b, c.For example:if a = 5, b = 10, c = 2Then f(&a, &b, &c) should:Set a to 17 (that is the sum)Set b to 8 (that is max - min = 10 - 2)Set c to 5 (that is the median of 5, 10 and 2) NOTE: You are already provided a test main which checks your code for evaluation. DO NOT MODIFY IT or your answer will NOT be accepted. #include<stdio.h> // Write your code here... //////////////////////////////////////////// THIS IS THE TEST MAIN FOR YOUR PROGRAM// DO NOT MODIFY IT!!int main() {int a = 1;int b = 2;int c = 3;for (int i = 0; i < 2; i++) {f(&a, &b, &c);printf("%d\n", a);printf("%d\n", b);printf("%d\n", c);}return 0;}//////////////////////////////////////////…Create a function that accepts an array of pointers as an argumentCreate one function that contains only one for loop to print the passed array of pointer.So, lines from //A to //B need to be replaced with only two function calls: one function call to printmonths (from the month array), and the second function call for printing the days (form the dayarray). Both function calls are for the same function but with different parameters.Write a function which accepts an int array and the number of elements in the array as two parameters. The function should dynamically create a new int array that is one element larger than the argument array. Element 0 of the new array should contain size, i.e. the number of elements in the argument array. Element 0 of the argument array should be copied to Element 1 of the new array, Element 2 of the argument array should be copied to Element 1 of the new array, etc. The function should return a pointer to the new array and should not modify the argument array. You may assume that the argument array contains at least one valid element and size is the number of elements in the array. You do not need to demonstrate calling this function. Example: if a[] is {2, 7, 4}, and size is 3, the function should return a pointer to a new array with 4 elements containing {3, 2, 7, 4}. int *counter(int a[], int size)
- (Numerical) Write a program that tests the effectiveness of the rand() library function. Start by initializing 10 counters to 0, and then generate a large number of pseudorandom integers between 0 and 9. Each time a 0 occurs, increment the variable you have designated as the zero counter; when a 1 occurs, increment the counter variable that’s keeping count of the 1s that occur; and so on. Finally, display the number of 0s, 1s, 2s, and so on that occurred and the percentage of the time they occurred.In your own words, discuss when a piecewise function is being used.Write a C++ program for the following In this task, your job is to create a function Swapper() that takes three arguments num1,num2, and difference. The first argument should be passed by pointer, second argumentshould be passed by reference, and third argument should be passed by value. YourSwapper function should first swap the values of num1 and num2 with each other, andthen compute the difference of most significant digits of both numbers. You have to storethe difference result in difference variable. In the end, you need to display the values ofall three variables inside your Swapper method as well as in your main function.Note: You are not allowed to create any other variable or pointer inside your Swappermethod.
