Infact it is something strange: while in motorbike this morning i thought i was wrong (in my previous post): the results of subtraction must be valid too when sorting: big minus less is greater than zero; equal minus equal is 0 and little minus big is less than zero:
perl -e "print join qq(\n),sort {$a - $b} @ARGV" 33 1 2 99
1
2
33
99
# same result using <=> or -

[download]
using big nums give me incorrect ordering using subtraction when one number is ten digits or more: 
perl -e "print join qq(\n),sort {$a - $b} @ARGV" 10000000000 3 2
10000000000
2
3

[download]


L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In reply to Re^5: Problem with a sort result: weird subtraction behaviour? by Discipulus
in thread Problem with a sort result by kzwix

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