Freaks City

The Problem with NULL In C and C++, the NULL macro has been the traditional way to represent a null pointer. However, its definition differs between the two languages, leading to potential ambgiuities, especially in C++. In C, NULL is typically defined as (void *) 0, a pointer to memory address zero. The C language allows implicit conversion fr ...

Preventing Inheritance of Base Class Methods In C++11, the = delete specifier provides a clean way to disable specific functions. This is particularly useful when you want to prevent a derived class from using certain member functions inherited from a base class. Conisder a simple arithmetic class: #include <iostream> class BaseCalculato ...

Introduction This document summarizes essential C++ concepts including syntax, memory management, and object-oriented programming. 1. C++ Fundamentals 1.1 Pointers and References Differences Between Pointers and References A pointer stores the address of an object. Its itself a variable (a named object) and has its own address, allowing pointer ...

Standardization and Historical Context The C++11 standard, ratified in 2011, marked a significant evolution from C++98/03. It introduced approximate 140 new features alongside numerous defect resolutions, transforming the language to better support modern system and library development with enhanced safety, efficiency, and programmer productivi ...

Understanding Rvalue References, Move Semantics, and Perfect Forwarding in Modern C++ Distinguishing Value Categories In C++11 and later, expressions are categorized into lvalues, prvalues, and xvalues. The latter two (xvalues and prvalues) are collectively known as rvalues. The primary practical distinction lies in whether the address of the e ...

Introduction to Modern C++ (C++11/14/17/20) This guide documents key features from the Modern C++ Tutorial: Quick Start with C++11/14/17/20. Chapter 2: Core Language Enhancements Compile-time Constants with constexpr The constexpr keyword allows expressions to be evaluated at compile time, enabling optimizations. constexpr int fibonacci_sequenc ...

1. long long Integer Type The long long type is an extended 64-bit integer type (8 bytes) with a signed range of -2^63 to 2^63 - 1. To explicitly denote a value as a signed long long, append the suffix LL or II (e.g., 10LL represents the signed 64-bit integer 10). For unsigned long long values, use the suffix ULL or UII (e.g., 10ULL for the uns ...

The header uvw/emitter.hpp is the beating heart of the UVW library: every resource inherits from the Emitter template to gain an event-driven interface. This article walks through the interesting language features and design choices that make the class tick. Type-safe event IDs without an enum Lines 161–185 contain a small but powerful metap ...

Core Mechanisms and Syntax Differences C++11 introduced decltype as a compile-time type inquiry operator. While it shares conceptual ground with auto, their syntactic evaluation and deduction strategies diverge significantly. The auto keyword deduces a variable's type from an initializer expression, whereas decltype inspects an arbitrary expres ...

C++11 introduced standardized support for multithreading, marking a significant shift in how concurrent programming is approached. Prior to this, develoeprs relied on platform-specific APIs, leading to non-portable code. The standard library now provides a consistent interface across different operating systems. Each application begins with one ...