How to simulate C style integer division?

[Jussi Piitulainen]

Shiyao Ma writes:

> I wanna simulate C style integer division in Python3.
>
> So far what I've got is:
> # a, b = 3, 4
>
> import math
> result = float(a) / b
> if result > 0:
>   result = math.floor(result)
> else:
>   result = math.ceil(result)
>
> I found it's too laborious. Any quick way?

The general principle is to define a function when something is too
laborious to do inline. def truncdiv(a, b): ...

But math.trunc rounds towards 0. Maybe you want to use that here.