Category Archive for "C++"

Understanding the Differences between Pointer and Reference Variables in C++

When working with C++, it is important to understand the differences between pointer variables and reference variables. While both serve similar purposes, they have distinct charac...

Why isn't sizeof for a struct equal to the sum of sizeof of each member?

When working with structs in C or C++, you may have come across a situation where the size of a struct is larger than the sum of the sizes of its individual members. This can be qu...

How to Find the Size of an Array from a Pointer Pointing to the First Element of the Array

When working with arrays in C or C++, it is important to know the size of the array. However, since arrays decay into pointers when passed to functions or stored in p...

How to Use extern to Share Variables between Source Files

Global variables are variables that are declared outside of any function. They can be accessed and modified from any part of the program. However, when working with m...

How to use arrays in C++?

C++ inherited arrays from C where they are used virtually everywhere. C++ provides abstractions that are easier to use and less error-prone...

Iterator Invalidation Rules for C++ Containers

C++ containers, such as vectors, lists, and maps, provide a way to store and manage collections of elements. When working with containers, it is common to use iterato...

What is Move Semantics in C++?

In the world of C++, move semantics is a powerful feature introduced in C++11 that allows for more efficient memory handling and resource management. It aims to eliminate unnecessa...

How do you implement the Singleton design pattern?

The Singleton design pattern is a creational design pattern that ensures a class has only one instance, while providing a global point of access to it. It is often us...

Accessing an array out of bounds gives no error in C++, why?

When programming in C++, it is common to work with arrays. However, one interesting aspect of arrays is that accessing elements outside of their bounds does not always give an erro...

How to Read and Parse CSV Files in C++

CSV (Comma-Separated Values) files are widely used for storing and exchanging tabular data. They consist of plain-text data sets, where each line repres...