The statement double *num; O defines a variable of type double called num. defines and initializes a pointer variable called num. defines a pointer variable called num. initializes a variable called *num. O None of the above
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- 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.Fill-in-the-Blank The __________ operator can be used to work with the variable a pointer points to.Define the term " pointer to void " .
- c++ How do you declare a pointer that will hold an integer type?. Multiple choice. int *p; int &p; int p; int* p;Assume pint is a pointer variable. For each of the following statements, determine whether the statement is valid or invalid. For those that are invalid, explain why. A) pint++;B) --pint;C) pint /= 2;D) pint *= 4;E) pint += x; // Assume x is an int.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.
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