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Annotation of OpenXM_contrib/PHC/Ada/Math_Lib/Supports/integer_support_functions.adb, Revision 1.1

1.1     ! maekawa     1: with Graded_Lexicographic_Order;         use Graded_Lexicographic_Order;
        !             2:
        !             3: package body Integer_Support_Functions is
        !             4:
        !             5:   function Maximal_Support ( l : List; v : Vector ) return integer is
        !             6:
        !             7:     sp,max : integer;
        !             8:     tmp : List;
        !             9:
        !            10:   begin
        !            11:     if not Is_Null(l)
        !            12:      then max := Head_Of(l).all*v;
        !            13:           tmp := Tail_Of(l);
        !            14:           while not Is_Null(tmp) loop
        !            15:             sp := Head_Of(tmp).all*v;
        !            16:             if sp > max
        !            17:              then max := sp;
        !            18:             end if;
        !            19:             tmp := Tail_Of(tmp);
        !            20:           end loop;
        !            21:           return max;
        !            22:      else return 0;
        !            23:     end if;
        !            24:   end Maximal_Support;
        !            25:
        !            26:   function Minimal_Support ( l : List; v : Vector ) return integer is
        !            27:
        !            28:     sp,min : integer;
        !            29:     tmp : List;
        !            30:
        !            31:   begin
        !            32:     if not Is_Null(l)
        !            33:      then min := Head_Of(l).all*v;
        !            34:           tmp := Tail_Of(l);
        !            35:           while not Is_Null(tmp) loop
        !            36:             sp := Head_Of(tmp).all*v;
        !            37:             if sp < min
        !            38:              then min := sp;
        !            39:             end if;
        !            40:             tmp := Tail_Of(tmp);
        !            41:           end loop;
        !            42:           return min;
        !            43:      else return 0;
        !            44:     end if;
        !            45:   end Minimal_Support;
        !            46:
        !            47:   procedure Min_Max ( l : in List; k : in integer;
        !            48:                       min,max : in out integer ) is
        !            49:
        !            50:     tmp : List;
        !            51:     v : Link_to_Vector;
        !            52:
        !            53:   begin
        !            54:     if not Is_Null(l)
        !            55:      then tmp := l;
        !            56:           v := Head_Of(tmp);
        !            57:           min := v(k);  max := min;
        !            58:           tmp := Tail_Of(tmp);
        !            59:           while not Is_Null(tmp) loop
        !            60:             v := Head_Of(tmp);
        !            61:             if v(k) < min
        !            62:              then min := v(k);
        !            63:              elsif v(k) > max
        !            64:                  then max := v(k);
        !            65:             end if;
        !            66:             tmp := Tail_Of(tmp);
        !            67:           end loop;
        !            68:     end if;
        !            69:   end Min_Max;
        !            70:
        !            71:   function Graded_Max ( l : List ) return Link_to_Vector is
        !            72:
        !            73:     res : Link_to_Vector := new Vector'(Head_Of(l).all);
        !            74:     tmp : List := Tail_Of(l);
        !            75:     ele : Link_to_Vector;
        !            76:
        !            77:   begin
        !            78:     while not Is_Null(tmp) loop
        !            79:       ele := Head_Of(tmp);
        !            80:       if ele > res
        !            81:        then res.all := ele.all;
        !            82:       end if;
        !            83:       tmp := Tail_Of(tmp);
        !            84:     end loop;
        !            85:     return res;
        !            86:   end Graded_Max;
        !            87:
        !            88:   function Face ( l : List; v : Vector; m : integer ) return List is
        !            89:
        !            90:     res,tmp,res_last : List;
        !            91:     d : Vector(v'range);
        !            92:
        !            93:   begin
        !            94:     tmp := l;
        !            95:     while not Is_Null(tmp) loop
        !            96:       d := Head_Of(tmp).all;
        !            97:       if d*v = m
        !            98:        then Append(res,res_last,d);
        !            99:       end if;
        !           100:       tmp := Tail_Of(tmp);
        !           101:     end loop;
        !           102:     return res;
        !           103:   end Face;
        !           104:
        !           105:   function Inner_Face ( l : List; v : Vector ) return List is
        !           106:   begin
        !           107:     return Face(l,v,Minimal_Support(l,v));
        !           108:   end Inner_Face;
        !           109:
        !           110:   function Outer_Face ( l : List; v : Vector ) return List is
        !           111:   begin
        !           112:     return Face(l,v,Maximal_Support(l,v));
        !           113:   end Outer_Face;
        !           114:
        !           115: end Integer_Support_Functions;