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Annotation of OpenXM_contrib/PHC/Ada/Math_Lib/Supports/integer_support_functions.ads, Revision 1.1.1.1

1.1       maekawa     1: with Standard_Integer_Vectors;           use Standard_Integer_Vectors;
                      2: with Lists_of_Integer_Vectors;           use Lists_of_Integer_Vectors;
                      3:
                      4: package Integer_Support_Functions is
                      5:
                      6: -- DESCRIPTION :
                      7: --   This package provides support functions for polytopes spanned by
                      8: --   lists of integer vectors.
                      9:
                     10:   function Maximal_Support ( l : List; v : Vector ) return integer;
                     11:   function Minimal_Support ( l : List; v : Vector ) return integer;
                     12:
                     13:   -- DESCRIPTION :
                     14:   --   Returns respectively max <d,v> or min <d,v>, for all d in l.
                     15:
                     16:   procedure Min_Max ( l : in List; k : in integer; min,max : in out integer );
                     17:
                     18:   -- DESCRIPTION :
                     19:   --   Computes the minimum and maximum of the k-th entry of all
                     20:   --   points belonging to l.
                     21:
                     22:   function Graded_Max ( l : List ) return Link_to_Vector;
                     23:
                     24:   -- DESCRIPTION :
                     25:   --   Returns the maximal element in the list w.r.t. the graded
                     26:   --   lexicographical ordening.
                     27:
                     28:   -- REQUIRED : List is not empty.
                     29:
                     30:   function Face ( l : List; v : Vector; m : integer ) return List;
                     31:
                     32:   -- DESCRIPTION :
                     33:   --   Returns a list of vectors d for which <d,v> = m.
                     34:   --   For m = Maximal_Support(l,v), we get the face w.r.t. the outer normal v;
                     35:   --   for m = Minimal_Support(l,v), we get the face w.r.t. the inner normal v.
                     36:
                     37:   function Inner_Face ( l : List; v : Vector ) return List;
                     38:   function Outer_Face ( l : List; v : Vector ) return List;
                     39:
                     40:   -- DESCRIPTION :
                     41:   --   Returns the face of the list l, where v is inner or outer normal.
                     42:
                     43: end Integer_Support_Functions;