**Given the following code:**```clong int data[] = {5, 7, 9, 1};long int* ptr = nullptr;```**Write a statement that sets `ptr` to point to the number 9.***(Input box for the answer)*---**Explanation:**This task involves understanding pointers in C/C++. The array `data[]` is initialized with the values `{5, 7, 9, 1}`. The pointer `ptr` needs to be set to the memory address of the array element containing the value `9`.To achieve this, you must identify the index of the number `9` in the array, which is `2` (considering `0`-based indexing). Therefore, you would set `ptr` to point to `&data[2]`.

Answered: Given the following code: long int…

Given the following code: long int data[] - {5, 7, 9, 1}; long int ptr - nullptr; Write a statement that sets ptr to point to the number 9.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

**Given the following code:**

```c
long int data[] = {5, 7, 9, 1};
long int* ptr = nullptr;
```

**Write a statement that sets `ptr` to point to the number 9.**

*(Input box for the answer)*

---

**Explanation:**

This task involves understanding pointers in C/C++. The array `data[]` is initialized with the values `{5, 7, 9, 1}`. The pointer `ptr` needs to be set to the memory address of the array element containing the value `9`.

To achieve this, you must identify the index of the number `9` in the array, which is `2` (considering `0`-based indexing). Therefore, you would set `ptr` to point to `&data[2]`.

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