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Splitting string into sub-strings is a common task in many applications. In this article, we will discuss various ways to split strings in C++. 1.Using the getline function The getline function can be used to split strings in C++. is : Extact string from istream object str : extracted line string delim : delimiter character … Read more

In this article, we will discuss string::npos in C++. The std::string::npos is a static member constant. It is defined in the string (basic_string.h) header file. It is a static member constant with the maximum value representable by the type size_type. The type of size_type is unsigned integer however it is initialized as -1 but due … Read more

In this article, we will discuss pure virtual functions in C++ and usage with examples. Let’s dive into the definition of pure virtual function. So what is pure virtual function? A pure virtual function is a function, that must be overriden in the derived class need not to be defined A virtual function can be … Read more

In this article, we will discuss different ways to read strings from input in C++. The cin object and getline function can be used to read strings. Using the cin to read string input In this example, we will use cin object to read strings. The cin is an istream object. Output Note that there … Read more

In this article, we will discuss virtual destructors in CPP. Destructor is part of Resource Acquisition Is Initialization(RAII) programming idiom. The basic idea of RAII is constructor will acquire(allocate) resources and the destructor will release resources for a class. The most common example of a destructor is when the constructor uses new, and the destructor … Read more

In this article, we will discuss the size of C++ classes. We will look into an empty class, a class with member function, a class with virtual functions, and a class with data members. We will be using a 64-bit machine to compile the test code. For a 64-bit machine, the pointer size is 8 … Read more