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On 2017-11-20 12:29 PM, Coda Highland wrote:
On Sun, Nov 19, 2017 at 12:13 AM, KHMan <> wrote:
Keeping 2s complement arithmetic in looping and its flaw(s) isn't
perfect but it's a known quantity. Patching the looping code would make it
"2s complement but not quite 2s complement". Either way, I hope we can have
some updates to the section on numerical loops in the reference manual.
It's NOT 2s complement, though. It's 2s complement if you're working
with integer loops, but it's signed magnitude if you're working with
floating point, and Lua doesn't tell you explicitly which you're
working with unless you ask. So it's already "signed magnitude, except
when it's 2s complement" and Paige's patch brings it just a little bit
closer to "always signed magnitude".

/s/ Adam


Why not just get rid of for loops?

for (iter(1, 10), function(i)

instead of

for i=1,10 do

Huge improvement. Then anyone can redefine `for` and `iter` with things like

for = myfor
local for = myfor
iter = myiter
local iter = myiter

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