File Handling in C++: Streams, std::filesystem and Practical Examples
File handling in C++ uses the stream classes ifstream, ofstream and fstream. Tested examples cover reading, writing, errors, binary files and C++17.
File handling in C++ uses the stream classes ifstream, ofstream and fstream. Tested examples cover reading, writing, errors, binary files and C++17.
Hello, world! Programs are usually written to make the text “Hello, world!” appear on a computer screen. This is also a basic sanity check for an installation of a new programming language. The first Hello World program appeared in chapter 1.1 of the first edition of Kernighan & Ritchie’s original book about C, ‘The C Programming Language’, in 1978. This is considered to be the first ever “Hello World!” program.
C++ has come a long way and is now adopted in several contexts. Its key strengths are its software infrastructure and resource-constrained applications, including desktop applications, servers, and performance-critical applications, not to forget its importance in game programming. Despite its strengths in these areas, beginners usually tend to shy away from learning the language because of its steep learning curve.
In C++, ternary operator allows executing different code depending on the value of a condition, and the result of the expression is the result of the executed code. The ternary operator uses 3 operands. It evaluates a condition and after that chooses one of its two branches to execute, depending upon the result of condition. The symbol for ternary operator is “? :”. The syntax for the ternary operator is: ? : ;
Simply speaking, polymorphism is the ability of something to be displayed in multiple forms. Let’s take a real life scenario; a person at the same time can perform several duties as per demand, in the particular scenario. Such as, a man at a same time can serve as a father, as a husband, as a son, and as an employee. So, single person possess different behaviors in respective situations. This is the real life example of polymorphism. Polymorphism is one of the important features of Object Oriented Programming (OOP).
Effective Modern C++ follows the proven guideline-based, example-driven format of Scott Meyers’ earlier books, but covers entirely new material. This book describes how to write effective software using C++11 and C++14—i.e. using modern C++.
The C++ modulus operator (%) returns the remainder of a division. This guide covers everything — negative numbers, fmod() for decimals, real use cases, and the pitfalls to avoid.
A linked list in C chains heap-allocated nodes through pointers. Build one completely: all operations, complexity analysis and a tested full program.
There are hundreds of programming languages used in the professional industry and university/college academics. One needs to be familiar and able to program with at least few programming languages to be successful.
This tutorial is designed to give a working knowledge of C++ (and indirectly parts of C) as quickly as possible for people with Java programming experience and familiarity with basic programming language concepts. By working through the exercises, core C++ concepts can be learned and practiced.