compile and run c++ code runtime

Question

Does anyone know how to compile your c++ code wich you write while your program is already running?

And later i would like to run that code.

I want to do this be

Answer 1

You have to call the compiler to compile and link the user-entered code. This has to be made either into an executable that is then run from another process you create, or as a library that you dynamically load and call.

How this is done is different on POSIX platforms (like Linux and OSX) and Windows.

Answer 2

You'd have an easier time if you chose a language that was designed with embedding in mind - like LUA or python. For C++, you'd have to go for something extremely clumsy and fragile like invoking an external compiler (which is also a logistics nightmare when shipping your game), or something as complex as integrating a compiler in your game (probably doable with llvm components, but...)

Also, for "teaching programming", C++ probably isn't the best language :)