(4) Shown below are several variable declarations in C. There are comments indicating what eachvariable is for. Decide if the declaration is correct or not. If incorrect, determine what needs tochange.|// Pointer to the base address of the PIouint32_t* PIOBase = (uint32_t *) 0x8675309;|// Variable declared in otherfile.cextern int32_t counter;|// Only one copy of this variable with stateextern char lastChar;|// Don't cache this variablereg uint8_t dontCacheMe = 0;

Explanation: For the declaration of the pointer variable for the base address of programmed…

(4) Shown below are several variable declarations in C. There are comments indicating what each variable is for. Decide if the declaration is correct or not. If incorrect, determine what needs to change.

(4) Shown below are several variable declarations in C. There are comments indicating what each variable is for. Decide if the declaration is correct or not. If incorrect, determine what needs to change.

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

See similar textbooks

Similar questions

2- In C++ language, every line of code must end with a semicolon. (True or False). 3- It is not possible to change the value of the pointer. (True or False). 4- If the following lines of code have errors, correct them; otherwise, write "no errors." for (int i=2; i<5; i++) { int s=i*2; } cout << S; 5- A function cannot be called from inside another function. (True or False). 6- How to make a function return multiple values? 7- Every class member is by default. (public, private, not public nor private) 8- Create an instance of the following class and call its methods. class Exam{ int grade; public: void seta (int b) (grade=b; } int geta () {return grade; } 9- When the word const is put before the variable definition, what does that mean? 10- How to concatenate two strings in C++ language? C++
C Programming: Need help in how to create the code instrumentation in c. We will rely on gcc's option -finstrument-functions to execute code to collect data at the start and end of invoking any function in a program. This is also called code profiling. For this, you need to implement the following functions in this unit: void __cyg_profile_func_enter(void *this_fn, void *call_site); void __cyg_profile_func_exit(void *this_fn, void *call_site); When we compile our programs with the above-mentioned option, function__cyg_profile_func_enter() will be called at the beginning of all functions in our program and function __cyg_profile_func_exit() will be called at the end of those functions. Parameters this_fn and call_site indicate pointers to the code segment that refer to the profiled function and the instruction that has invoked the profiled function. We can implement various functionalities using these enter/exit functions to help us analyze the function calls in our program. In this…
In c++, please and thank you! Write a function that dynamically allocates an array of integers. The function should accept an integer argument indicating the number of elements to allocate. The function should return a pointer to the array.
In C++Using the code provided belowDo the Following: Modify the Insert Tool Function to ask the user if they want to expand the tool holder to accommodate additional tools Add the code to the insert tool function to increase the capacity of the toolbox (Dynamic Array) USE THE FOLLOWING CODE and MODIFY IT: #define _SECURE_SCL_DEPRECATE 0 #include <iostream> #include <string> #include <cstdlib> using namespace std; class GChar { public: static const int DEFAULT_CAPACITY = 5; //constructor GChar(string name = "john", int capacity = DEFAULT_CAPACITY); //copy constructor GChar(const GChar& source); //Overload Assignment GChar& operator=(const GChar& source); //Destructor ~GChar(); //Insert a New Tool void insert(const std::string& toolName); private: //data members string name; int capacity; int used; string* toolHolder; }; //constructor GChar::GChar(string n, int cap) { name = n; capacity = cap; used = 0; toolHolder = new…
Define the term " pointer to void " .
In C/C++, True or False: A function that changes the value of a variable passed by reference also changes the value of the original variable. A variable's type helps define the amount of memory it takes to hold a value of that type.
1. Pointer Tasks This part of the assignment will give you a chance to perform some simple tasks with pointers. The instructions below are a sequence of tasks that are only loosely related to each other. Start the assignment by creating a file named pointerTasks.cpp with an empty main function, then add statements in main() to accomplish each of the tasks listed below. Some of the tasks will only require a single C++ statement, others will require more than one. For each step, include a comment in your program indicating which step you are completing in the following statement(s). The easiest way to do this is copy and paste the below into your main function first, and then fill in your statements. // 1. Create two integer variables named x and y// 2. Create an int pointer named p1// 3. Store the address of x in p1// 4. Use p1 to set the value of x to 99// 5. Using cout and x, display the value of x// 6. Using cout and the pointer p1, display the value of x// 7. Store the address…
PROGRAMMING LANGUAGE: C++ You need to store hiring date and date of birth for teachers, and for students store their admission date and date of birth. You need to create a Date class for this purpose. Create objects of Date class in Teacher and Student class to store respective dates. You need to write print function in Teacher and Student classes as well to print all information of Teachers and Students. You need to perform composition to implement this task. Create objects of Teacher and Student classes in main function and call print function for both objects. Print Date class here. Print updated Teacher class here. Print updated Student class here. Print main function here. Print Outputshere.
C++ language Write a program using Switch statement to perform the following functionalities.1. Press a to call functionOne.2. Press b to call functionTwo.3. Press c to call functionThree.4. Exit as any other key pressed.(default)functionOne will return product of all integers entered by user in array of size 8.functionTwo will perform greatest value in array entered by user.funtionThree will calculate lowest value in an array entered by user.
Month Day Calculator in C Using basic concepts of Pointers and Structures (Pointers and Multi-dimensional arrays), create a C program that calculates the month's day from a given year and year's day. Use pointers for the month and month's day variables. Don't forget to add proper errors handling in your program. - Follow the instructions below for handling error. - Invalid Input- Invalid year- Invalid year day Modify the provided monthAndDay.c class file to receive the parameters in the way and also print the proper formatted output. Example: # ./month_day <year> <yearday> # Example for Feb 2nd, 2019:\$ ./month-day 2019 33Feb 02, 2019 class- monthAndDay.c - #include <stdio.h> /* monthAndDay function's prototype*/void monthAndDay(int year, int yearday, int *pmonth, int *pday); int main() {return 0;}
You can dereference a smart pointer with the * operator. True False
Task related to pointers : Write a c++ program that asks the user to enter integers as inputs to be stored in the variables 'a' and 'b' respectively. There are also two integer pointers named ptrA and ptrB. Assign the values of 'a' and 'b' to ptrA and ptrB respectively, and display them. ( Drop code in words , explain the code and drop the screenshot of output as well )