Re: You're gonna hate me (Stupid/troll code)

["Thiago L." <fakedme@...>]

On 03/06/2014 15:16, Jorge wrote:
> I don't know what it does, but the third line is
>
> for x=i,math.huge do
>
> I can not read the code beyond that line. I will be stuck looking at 
> that and thinking for a while.
Lua 5.1.4  Copyright (C) 1994-2008 Lua.org, PUC-Rio
> for x=1,3 do print(x) end
1
2
3

If you replace the 3 with math.huge it keeps going forever, and because 
1+1 = 2 (and 2+1=3 etc), we can combine a for loop, the input (i) and 
math.huge to increase x until we exit the loop.
So:
    for x=i,math.huge do
        if x > i then
            return x
        end
    end

Can also be written as:
    local x = i
    while x <= math.huge do
        if x > i then
            return x
        end
        x = x + 1
    end

Adding with for loops is better because it supports floats. For positive b:
    local c
    for x=a,math.huge,b do
        if c then return x end
        c = true
    end

And for negative b:
    local c
    for x=a,-math.huge,b do
        if c then return x end
        c = true
    end

If b is 0 (or -0) the loop doesn't run, so we need special handling for 
that, which's basically a "return a" right after the loop:
    local c
    for x=a,(b >= 0 and math.huge or -math.huge),b do
        if c then return x end
        c = true
    end
    return a

And so on...
> J.
>
> On 06/03/2014 03:09 AM, David Demelier wrote:
> > Le 03/06/2014 03:56, Thiago L. a écrit :
> > > I've been working on some stupid/troll code (mostly to bypass some
> > > stupid/troll restrictions), and this is what it looks like:
> > > https://github.com/SoniEx2/Stuff
> > >
> > > And ofc, because this is a stupid thing, it should be as stupid as
> > > possible, so here's a bug: https://github.com/SoniEx2/Stuff/issues/1
> > >
> > > Feel free to send pull requests! (or hate me :c)
> > >
> > > (This is more of an experiment than an actual thing, so let's see how
> > > it goes!)
> > What's the use case of this ?