At 08:39 AM 10/27/2007, Aditya Lal wrote:
>I would expect that a type change will happen if there is a need.
Hey, I HAD a need! OK, a made-up one.
> Hence if type(n) is already long it does not have to get converted
> to int to accommodate something small.
And that's not a bug?
>I changed your program to increase from 1B to 10B and the results
>are as expected :)
>
><snip> - your old code
>
>n = 1000000000 # 1 billion
>print type(n)
>while n < 10000000000 : # 10 billion
> if type(n) == int:
> n += 1000000
> print n, type(n)
> else :
> break
>
><snip> - your old code
Thanks, Aditya.
Successively using greater and greater ints, and augmenting n by
smaller and smaller amounts, I used finally
n = 2147483000
print n, type(n)
while n < 10000000000 : # 10 billion
if type(n) == int:
n += 1
else:
print n, type(n)
break
outputs
2147483000 <type 'int'>
2147483648 <type 'long'>
And then I can show this:
>>> type(2147483648)
<type 'long'>
>>> type(2147483647)
<type 'int'>
>>>
So the largest int is 2147483647, or 2**31 - 1.
(I know this is all obvious to most, but I still get a kick out of doing it.)
Dick
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