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Getting Set Up – C++ Compilers
The very first thing you need to do, before starting out in C++, is to make sure that you have a compiler. What is a compiler, you ask? A compiler turns the program that you write into an executable that your computer can actually understand and run. If you’re taking a course, you probably have one provided through your school. If you’re starting out on your own, your best bet is to use Code::Blocks with MinGW. If you’re on Linux, you can use g++, and if you’re on Mac OS X, you can use XCode. (If you are stuck using an older compiler, such as Turbo C++, you’ll need to read this page on compatibility issues.) If you haven’t yet done so, go ahead and get a compiler set up–you’ll need it for the rest of the tutorial.
Intro to the C++ Language
A C++ program is a collection of commands, which tell the computer to do “something”. This collection of commands is usually called C++ source code, source code or just code. Commands are either “functions” or “keywords”. Keywords are a basic building block of the language, while functions are, in fact, usually written in terms of simpler functions–you’ll see this in our very first program, below. (Confused? Think of it a bit like an outline for a book; the outline might show every chapter in the book; each chapter might have its own outline, composed of sections. Each section might have its own outline, or it might have all of the details written up.) Thankfully, C++ provides a great many common functions and keywords that you can use.Read more here

https://ugokingsblog./2017/07/09/introduction-to-the-c-language-2/