On Tue, 4 Mar 2003, Sascha Schumann wrote:
> > Well, Perl can lean the other way as well actually. Try this:
>
> Is there some documentation why the default is as it is?
All I could find was this description of the Perl modulus operator:
Binary ``%'' computes the modulus of two numbers.
> Well, Perl can lean the other way as well actually. Try this:
Is there some documentation why the default is as it is?
> You will see it gives you -6. Like I said, it comes down to which way you
> truncate. Programmers tend to think that something like (int)(-3.4)
> should result in -3.
Well, Perl can lean the other way as well actually. Try this:
use integer;
print -27%7;
You will see it gives you -6. Like I said, it comes down to which way you
truncate. Programmers tend to think that something like (int)(-3.4)
should result in -3. If that is what you expect, then I t
> Yeah, I read that in the bug report and confirmed that as the intended
> behavior in C. What I meant was 'regardless of what the ISO standard
> says, thats not a standard mathematical definition.'
Well, the standard mathematical definition
r = a mod b <=> a = floor(a/b) * b + r
On Tuesday, March 4, 2003, at 10:33 AM, Sascha Schumann wrote:
On Tue, 4 Mar 2003, George Schlossnagle wrote:
Interesting.
I don't know what the ISO standard say, but mathematically a a % b
will
always return you an integer 0 <= a%b < b (since there are no negative
numbers in canonical represe
On Tue, 4 Mar 2003, George Schlossnagle wrote:
> Interesting.
>
> I don't know what the ISO standard say, but mathematically a a % b will
> always return you an integer 0 <= a%b < b (since there are no negative
> numbers in canonical representation of Z/bZ). I guess perl/python/tcl
> ddecided to
Interesting.
I don't know what the ISO standard say, but mathematically a a % b will
always return you an integer 0 <= a%b < b (since there are no negative
numbers in canonical representation of Z/bZ). I guess perl/python/tcl
ddecided to adhere to the mathematical definition.
On Tuesday, Marc
This is actually an interesting question. Should we be truncating towards
zero? I'd say yes, but then I tested Perl, Python and Tcl, and they all
say that -27 % 7 is 1 which means they truncate towards negative infinity.
Too late to change at this point in the game, but perhaps it calls for a
mo
