(42, all flavours) Integer Division - how?

[Werner]

(12-19-2020 03:14 AM)Albert Chan Wrote:  

PHP Code:

function idiv6c(a, b)   -- assumed b > 0
    local r = a/b
    local q = floor(r)
    if q ~= r then return q end
    r = (a%b) * 2
    if r == 0 then r = a % (b+b) end
    return r > b and q-1 or q
end 


2 remarks:
- shouldn't that be if r== b instead of if r==0 ?
- and, a%b*2 may overflow again?

Cheers, Werner