It aims at making basic operations in OCaml polymorphic

This should NOT be used. This is a toy project and is not safe: it uses OCaml internals to reach its goal. Can lead to segfaults or worse.

• int + int = int
• float + int = int + float = float + float = float
• string + string = string

• int - int = int
• float - int = int - float = float - float = float

• int * int = int
• float * int = int * float = float * float = float

• int / int = int
• float / int = int / float = float / float = float

The types noted above corresponds to the runtime types of the values.

This means that the empty list [] can be added to true and the result will be 1.