[Date Prev][Date Next][Thread Prev][Thread Next]
[Date Index]
[Thread Index]
- Subject: Re: [ANN] Lua 5.3.0 (rc4) now available
- From: Michael Welsh Duggan <mwd@...>
- Date: Mon, 12 Jan 2015 17:04:46 -0500
Sean Conner <sean@conman.org> writes:
> It was thus said that the Great Roberto Ierusalimschy once stated:
>> > > I don't know about others but writing larger numbers in exponential
>> > > format like 1e3 is common in my code. For Lua 5.3, those are always
>> > > floats. This has interesting consequences:
>> > >
>> > > for i = 1, 1e3 do
>> > > print(i) --> always int
>> > > end
>> > >
>> > > for i = 1e3, 1, -1 do
>> > > print(i) --> always float
>> > > end
>>
>> Note that this corresponds to the usual arithmetic rules.
>>
>>
>>
>> > > This is probably not a big deal since I could use 10^2 instead.
>> >
>> > Oops, no I can't. Exponentiation always converts operands to float
>> > too. I guess there's not a good shorthand for large integer constants?
>>
>> 1000? :-)
>
> Easy for that case---no so easy for 2^48.
0x1000000000000
--
Michael Welsh Duggan
(mwd@cert.org)