Re: [PHP-DEV] Re: #22527 [Opn->Bgs]: Modulus returned negative value

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, March 4, 2003, at 02:37  AM, Rasmus Lerdorf wrote:

> 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.