~Zig doesn't support TCE.~ Edit: Tried with different optimization levels, it seems it might. I wonder if it's an optimization from LLVM. Nevertheless, I don't

~Zig doesn't support TCE.~ Edit: Tried with different optimization levels, it seems it might. I wonder if it's an optimization from LLVM. Nevertheless, I don't think that Zig is the kind of language where you want to use recursion as your primary mean of looping; it's not a functional language, it's a procedural language.