generic-print | Convenient generic print for C | 3D Printing library

"How does the compiler know which Print() to use, when it's called from PrintDynamic(dynamic array)"

The answer is virtual function tables. Since you are working with C#, all types inherit from the class "object". A simple call to Print() attempts to print the objects themselves and not their content. Why? Because the ToString() method is called for the object since a more appropriate method has not been overloaded. Whenever you're working with strongly typed OOP languages such as C#, each object is a pointer to it's data structure (generally on the heap), and the first entry of this data structure is a pointer to the virtual function table for that object. A virtual function table is essentially an array of function pointers for each respective function that the class supports. Since by calling PrintDynamic you are actually passing the pointer of your object, the resolution of your object's pointer maps back to the virtual function table of its class. Then, the appropriate overloaded functions can be called. This is a high level description of the process. The concept is similar in languages such as C++. I hope this helps you understand a bit more about what the compiler is actually doing behind the scenes. I'd recommend some academic reading or perhaps the following link for some more details.

https://en.wikipedia.org/wiki/Virtual_method_table