
<ConsistencyModule:> alldifferent(+Vars)

   All elements of Vars are different.

Arguments
   Vars                A collection (a la collection_to_list/2) of variables or integers

Type
   library(gfd)

Description

   Constrains all elements of a collection to be different from each other.
   Semantically, all elements of the collection are pairwise different.

   This constraint is also known as alldifferent_cst in the global constraints 
   catalog, and is implemented using Gecode's distinct() constraint.

   ConsistencyModule is the optional module specification to give the 
   consistency level for the propagation for this constraint: 
   gfd_vc for value consistency (naive), gfd_bc for bounds consistency, 
   and gfd_gac for domain (generalised arc) consistency. 



See Also
   alldifferent_cst / 2, ic : alldifferent / 1, ic_symbolic : alldifferent / 1, sd : alldifferent / 1, fd_global : alldifferent / 1, ic_global : alldifferent / 1, fd : alldifferent / 1, fd_global_gac : alldifferent / 1, ic_global_gac : alldifferent / 1, eclipse_6 : collection_to_list / 2, lists : collection_to_list / 2
