[squeak-dev] Properties of "<" in SortedCollection>>#sortBlock - reflexive, symmetric, transitive required?

Milan Zimmermann milan.zimmermann at sympatico.ca
Sun May 4 10:39:55 UTC 2008


Hi,

Is the "<" opertaion in SortedCollection>>#sortBlock required to be reflexive, 
symmetric and transitive ? 

I have a set of classes with known parent class and try to sort them so they 
install into the image in the right order (parent first). The obvious "<" 
implementation of parent < child may not be enough because it not transitive 
unless I do some more sophisticated manipulation (I only immediate descendant 
relationship)..

The sortBlock documentation provides no help on this...

Thanks Milan



More information about the Squeak-dev mailing list