Introduction Exception handling in C++ is a mechanism that allows a program to deal with unexpected events or errors that occur during runtime. By using exceptions, you can separate error-handling code from regular code, making the program more readable and maintainable. The core keywords used for exception handling in C++ are try, catch, and throw. …
Introduction Regular expressions (regex) are sequences of characters that form search patterns. They are widely used for string matching and manipulation. In C++, the <regex> library provides support for regular expressions, allowing you to perform complex string operations easily. Basic Concepts Regex Pattern: The sequence of characters that defines the search pattern. Regex Match: The …
Introduction Handling date and time in C++ is crucial for many applications, such as logging, scheduling, and timestamping. The C++ Standard Library provides comprehensive support for date and time manipulation through the <ctime> library and the <chrono> library introduced in C++11. This guide covers how to work with date and time using these libraries through …
Introduction Thread synchronization in C++ is crucial for ensuring that multiple threads can work together without interfering with each other or corrupting shared data. Synchronization mechanisms prevent data races and ensure that threads access shared resources in a controlled manner. C++ provides several synchronization tools, such as mutexes, condition variables, and more, to manage thread …
Introduction Multithreading in C++ allows a program to run multiple threads concurrently. This can significantly improve performance, particularly on multicore processors, by allowing different parts of a program to execute simultaneously. C++11 introduced a standardized way to handle threads via the <thread> library, providing robust tools to create, manage, and synchronize threads. Basic Concepts Thread: …
Introduction In C++, user-defined exceptions allow you to create custom exception classes tailored to your specific error-handling needs. By defining your own exception classes, you can provide more detailed and meaningful error messages and handle exceptions more effectively in your application. Creating User-Defined Exception Classes User-defined exception classes are typically derived from the standard std::exception …
Introduction In C++, multiple catch blocks allow you to handle different types of exceptions thrown by a try block. Each catch block is designed to handle a specific type of exception. When an exception is thrown, the type of the exception is compared against each catch block in order. The first catch block that matches …
Introduction Exception handling in C++ is a powerful mechanism that helps manage and respond to runtime errors in a controlled way. The try, catch, and throw keywords are the fundamental building blocks of exception handling in C++. These keywords allow you to separate error-handling code from regular code, improving code readability and maintainability. try Block …
Introduction Type casting in C++ is the process of converting a variable from one data type to another. C++ provides several ways to perform type casting, including implicit and explicit casting. Additionally, C++ offers four specific type casting operators to ensure safe and controlled conversions: static_cast, dynamic_cast, const_cast, and reinterpret_cast. Types of Type Casting Implicit …
Introduction Friend functions in C++ allow you to grant a non-member function access to the private and protected members of a class. By declaring a function as a friend of a class, you enable that function to operate on the internal state of class objects, providing flexibility in designing your classes and functions. Defining Friend …
Introduction Pure virtual functions in C++ are a key concept in achieving runtime polymorphism and defining abstract classes. A pure virtual function is a virtual function that has no implementation in the base class and must be overridden by derived classes. A class that contains at least one pure virtual function is considered an abstract …
Introduction Virtual functions in C++ allow you to achieve runtime polymorphism. They enable a base class to define a function that can be overridden by derived classes. When a base class pointer or reference points to a derived class object, the overridden function in the derived class is called. This allows you to write flexible …
Introduction Operator overloading in C++ allows you to redefine the way operators work for user-defined types (such as classes and structs). This enables you to use operators with objects in a way that is intuitive and similar to how they are used with built-in types. By overloading operators, you can define custom behaviors for operations …
Introduction Function overloading in C++ allows you to define multiple functions with the same name but different parameter lists. This enables functions to handle different types or numbers of inputs while providing a consistent interface. Function overloading is a form of polymorphism, specifically compile-time polymorphism. Defining Overloaded Functions To overload functions, you create multiple functions …
Introduction Hierarchical inheritance in C++ is a type of inheritance where multiple derived classes inherit from a single base class. This allows you to create different classes that share common functionality from the base class while also extending and customizing their own unique features. Hierarchical inheritance promotes code reuse and logical organization of related classes. …
Introduction Multilevel inheritance in C++ is a type of inheritance where a class is derived from another derived class. This creates a chain of inheritance, where a base class is extended by an intermediate class, which is further extended by another class. This hierarchy allows for the progressive extension of functionality and the reuse of …
Introduction Multiple inheritance in C++ allows a derived class to inherit members (attributes and methods) from more than one base class. This can be useful for creating classes that combine the functionality of multiple base classes. However, it also introduces complexities such as ambiguity and the diamond problem, which need to be managed carefully. Example: …
Introduction Single inheritance in C++ allows a derived class to inherit members (attributes and methods) from a single base class. This type of inheritance promotes code reusability and establishes a relationship between the base class and the derived class. Example: Implementing Single Inheritance Let’s explore a simple example of single inheritance where a derived class …
Introduction Namespaces in C++ are used to organize code into logical groups and prevent name collisions that can occur especially when your code base includes multiple libraries. By encapsulating identifiers such as variables, functions, classes, and objects within a namespace, you can ensure that they don’t interfere with identifiers in other namespaces or the global …
Introduction In C++, an array of objects allows you to manage and manipulate multiple instances of a class efficiently. By creating an array of objects, you can easily access and modify the attributes and behaviors of each object within the array. This approach is particularly useful in scenarios where you need to handle collections of …
Introduction An array of structs in C++ allows you to manage and manipulate collections of related data in an organized way. By defining a struct and then creating an array of that struct, you can efficiently handle multiple records, such as student information, employee details, etc. Defining a Struct and Creating an Array of Structs …
Introduction In C++, a "struct of arrays" pattern involves defining a structure that contains arrays as its members. This pattern is often used for organizing related data in a structured way, making it easier to manage and manipulate. The struct of arrays approach can improve memory locality and performance, especially in applications that process large …
Introduction Pointers and references in C++ are both mechanisms that allow you to indirectly access and manipulate variables. While they serve similar purposes, they have distinct differences in syntax, usage, and behavior. Understanding these differences is crucial for writing efficient and effective C++ code. Definition and Syntax Pointers A pointer is a variable that stores …
Introduction In C++, both structures (struct) and classes (class) are user-defined data types that allow you to group variables and functions under a single name. They are similar in many ways but have some key differences in terms of default access control and intended usage. Understanding these differences can help you choose the appropriate one …
Introduction Pointers to classes in C++ allow you to manipulate objects dynamically and efficiently. Using pointers to access and manage objects can provide greater flexibility, particularly when dealing with dynamic memory allocation, polymorphism, and passing objects to functions. Defining and Using Pointers to Classes Basic Example You can define a pointer to a class and …