C and C++

C and C++ are low-level programming languages that have been around for over 30 years. C is procedural and doesn't inherently support object-oriented programming concepts such as classes and inheritance, but it's fast, portable, and widely used. 

C++ was built to fill the gaps in C by adding features such as operator overloading and improved type checking. Both languages consistently rank in the top 10 most popular programming languages, which make them ideally suited for the MVP:

C and C++ support is also baked into Emscripten, so in addition to simplifying the compilation process, it allows you to take advantage of WebAssembly's full capabilities. It is also possible to compile C/C++ code down to a .wasm file using LLVM. LLVM is a collection of modular and reusable compiler and toolchain technologies. In a nutshell, it's a framework that simplifies the configuration of a compilation process from source code to machine code. If you made your own programming language and would like to build a compiler, LLVM has tools to simplify the process. I'll cover how to compile C/C++ into .wasm files using LLVM in Chapter 10, Advanced Tools and Upcoming Features.

The following snippet demonstrates how to print Hello World! to the console using C++:

#include <iostream>

int main() {
    std::cout << "Hello, World!\n";
    return 0;
}