C++ Programming Tutorials

C++ Programming Tutorials And Articles
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One benefit of C++ over C is its exception handling system. An exception is a situation in which a program has an unexpected circumstance that the section of code containing the problem is not explicitly designed to handle. In C++, exception handling is useful bcause it makes it easy to separate...
When exceptions occur, the programmer has to decide a strategy according to which he would handle the exceptions. The strategies could be, displaying the error messages on the screen, or displaying a dialog box in case of a GUI environment, or requesting the user to supply better or simply...
Memory pools allow dynamic memory allocation comparable to malloc or the Operator new in C++. As those implementations suffer from fragmentation because of variable block sizes, it can be impossible to use them in a real time system due to performance. A more efficient solution is preallocating a...
This example shows how to create the linklist without Loop. #include<iostream.h> #include<conio.h> //Structure of the Doubly Link List Node. // Data stores the value of type integer. struct Node
Problems of testing 64-bit applications. Andrey Karpov Evgeniy Ryzhkov http://www.Viva64.com March 2007 Abstract. The article observes some questions related to testing the 64-bit software. Some difficulties which a developer of resource-intensive 64-bit applications may face and the...
I will explain how to create a directory in linux using a c++ program. The program to create a directory is as follows: #include<iostream.h> #include<sys/stat.h> #include<sys/types.h> using namespace std; main()
Introduction This article talks about how Virtual table and _vptr looks in case of simple Multiple Inheritance Background In Multiple Inheritance, the Derived class contains the _vptr of all it's Base classes. Lets see the below example, where-in, derived class i.e. Derive is derived...
A virtual function is used where we want to allow the derived class to replace the implementation of the same function in base class. The compiler always calls the derived class function when called with object of the derived class or an object of base class holding the address of the derived class...
Level: Beginner, Test environment: WinXP SP3 This tutorial is going to teach you how to make a 'DLL wrapper'. Wrappers are own versions of known DLL's. In this case we're going to make a wrapper of a very known DLL known as PSAPI.DLL. If you don't know it then find the information somewhere XD....
LEVEL: BEGINNER, Test Environment: WinXP SP3 This is a demonstration of how Opengl32 with GPA can be applied an IAT HOOK to intercept functions in a process. In this case, it is about an EXE which uses some functions from Opengl32 to create a window and render an image. ...
Today I am going to explain another very important C++ concept: ’The Data Type Conversion in C++’. C++ has wide variety of data types ranging from the basic or primitive data types to the user defined data types. In this article, we are going to explain that how we convert these data types to...
Originally written by Zeeshan Amjad Assumption: 32-bit Machine. Here I am going to explain How Virtual table, Virtual pointer for Virtual functions are internally working. First we have understand memory layout. Example 1: How the class's memory layout class Test
Introduction This article talks about how virtual table or vtable and _vptr works, with a pictorial representation. Background Virtual Table is a lookup table of function pointers used to dynamically bind the virtual functions to objects at runtime. It is not intended to be used directly...
Sort the content of a linked list. Note: I had a major bug pointed out by RiOrius and is rectified now. Thanks for letting me know about it. #include <iostream> using namespace std; #define NULL 0
Printing the date from starting date to ending date The program takes the starting date and ending date as inputs and prints the dates in between them.This program is useful if u r dealing with dates. The code I have used four date functions i.e date1() , date2() , date3() , date4(). When...
Whenever you hear the word virtual, the first thing which comes to your mind is something that only exists in appearance but in reality you cannot physically see or touch that thing. A virtual function in C++ is a similar concept. Virtual functions lays at the heart of object oriented programming...
Sometimes its very difficult to understand which function would be call. So, this example explain you about how member functions are called while using virtual and without virtual. 1) Example of Virtual Function In the case of virtual function when we call the member functions.The compiler...
Multithreading is one of the most fascinating feature of modern day programming. If you are not familiar with multithreading then most probably you have been writing programs that are single threaded. By single threaded program we mean such a program where program instructions run in a sequence and...
Definition : Class which Can't be inherited by other class, that class is called final class. You all knows that final class is inbuilt in java. But in C++ you have to create final class.Two types of Final class, you can create . One who want to create object of final class on Heap and other who...
Introduction This article talks about ASSERTs usage and customizing our own ASSERTs. Background Asserts are to catch implementation errors. The developer can document all the assumptions made on the his/her program, by using ASSERTs. If you have used asserts in your code and if it...