Question 5A double pointer 1 pointIs a method to help optimize pointer usage by the compilerPoints to a pointer of the same typeRequires a double dereference to access the address of the pointerCannot be used to dereference data memoryCan only be used in conjunction with void pointers

How do pointers contribute to the optimization of code execution in C?Marks : 1Negative Marks : 0Answer hereBy slowing down program executionBy enabling direct access to code segmentsBy minimizing memory usageBy complicating control flow structures

ObjectiveIn this challenge, you will learn to implement the basic functionalities of pointers in C. A pointer in C is a way to share a memory address among different contexts (primarily functions). They are primarily used whenever a function needs to modify the content of a variable that it does not own.In order to access the memory address of a variable, , prepend it with sign. For example, &val returns the memory address of .This memory address is assigned to a pointer and can be shared among various functions. For example, will assign the memory address of to pointer . To access the content of the memory to which the pointer points, prepend it with a *. For example, *p will return the value reflected by and any modification to it will be reflected at the source (). void increment(int *v) { (*v)++; } int main() { int a; scanf("%d", &a); increment(&a); printf("%d", a); return 0; } TaskComplete the function void update(int *a,int *b). It receives two integer pointers, int* a and int* b. Set the value of to their sum, and to their absolute difference. There is no return value, and no return statement is needed.Input FormatThe input will contain two integers, and , separated by a newline.Output FormatModify the two values in place and the code stub main() will print their values.Note: Input/ouput will be automatically handled. You only have to complete the function described in the 'task' section.Sample Input45Sample Output91Explanation

Which of the following can be modified by a function when a pointer to it is passed?Marks : 1Negative Marks : 0Answer hereThe pointer's memory addressThe data the pointer points toThe size of the data the pointer points toThe number of elements in an array pointed to by the pointer

What does the expression ptr1 == ptr2 check in C where ptr1 and ptr2 are pointers?Marks : 1Negative Marks : 0Answer hereWhether the pointers point to the same memory locationEquality of values pointed by ptr1 and ptr2Increment the value pointed by ptr1 by the value pointed by ptr2None of the mentioned options

Answered0/2Bookmarked0/2Skipped1/2Not Viewed1/2Saved in Server0/2View MoreQuestion No : 1 / 2Multi Choice Type QuestionWhich of the following statements is true regarding generic (void) pointers?Marks : 1Negative Marks : 0Answer hereVoid pointers can be dereferenced directly.Void pointers cannot be dereferenced.Void pointers can only be dereferenced with explicit casting.Void pointers behave the same as other pointers in dereferencing.