问带有Get的Ada歧义表达式

EN

with Ada.Text_IO;
use Ada.Text_IO;
with Ada.Float_Text_IO;
use Ada.Float_Text_IO;
with CreateList;

procedure Main is

   package IntIO is new Ada.Text_IO.Integer_IO(Integer); use IntIO;
   package FloatIO is new Ada.Text_IO.Float_IO(Float); use FloatIO;

begin

   declare
      max: integer;   --declaring integer named "max"
      val: integer;
      del: integer;
      pointer : integer := 0;
      len : integer := 0;
      procedure MyPut(x: integer) is begin
            IntIO.Put(x, 0, 10);
      end MyPut;

      package C_List is new CreateList(max, integer, MyPut); use C_List;

   begin
      get(max);                              --assigns input for array size and assigns value to "max"
      for row in 1 .. max loop
         get(val);
         C_List.add_to_list(val);            --calls procedure to add value 12 to array
      end loop;
      C_List.print_list;                     --calls procedure to print entire array
      len := C_List.length_of_list;          --calls function to determine the current length of array and assign the value to "len"
      for pointer in 1 .. len loop           --calls procedure to print individual value in array. Loops to print all values in array
         C_List.print_list(pointer);
      end loop;
      Put_Line("");
      get(del);
      C_List.delete_from_list(del);          --calls procedure to delete a value from array
      C_List.print_list;                     --calls procedure to print entire array
   end;

   

   declare
      max: integer;   --declaring integer named "max"
      fVal: float;
      del: integer;
      pointer : integer := 0;
      len : integer := 0;
      
      procedure MyPut(x: Float) is begin
         FloatIO.Put(x, 0, 0, 0);
      end MyPut;


      package B_List is new CreateList(max, float, MyPut); use B_List;

      begin
         get(max);                           --assigns input for array size and assigns value to "max"
      for row in 1 .. max loop
         get(fVal);
         B_List.add_to_list(fVal);           --calls procedure to add value 12 to array
      end loop;
         B_List.print_list;                  --calls procedure to print entire array
         len := B_List.length_of_list;       --calls function to determine the current length of array and assign the value to "len"
         for pointer in 1 .. len loop        --calls procedure to print individual value in array. Loops to print all values in array
            B_List.print_list(pointer);
         end loop;
         Put_Line("");
         get(del);
         B_List.delete_from_list(del);       --calls procedure to delete a value from array
         B_List.print_list;                  --calls procedure to print entire array
      end;

end Main;

with Ada.Text_IO;
use Ada.Text_IO;
with Ada.Float_Text_IO;
use Ada.Float_Text_IO;

package body CreateList is
   len: Integer;                       --declaring integer named "len"
   list: array(1..max) of itemType;    --making an integer array named "list"
   pnt: integer;                       --declaring integer named "pnt"

   procedure add_to_list (ListItem: in itemType) is begin   --procedure that adds new integer value to array "list"
      if pnt >= max then                                    --detects when array is full and can't fit more values
         Put_Line("**Detected Overflow**");
      else
         pnt := pnt + 1;                                    --moves pointer
         list(pnt) := ListItem;                             --adds new integer value to pointer index
      end if;
   end add_to_list;

   procedure delete_from_list (indx: in Integer) is begin   --procedure that removes an integer value from array "list"
      if indx = 0 then                                      --detects when array is empty and doesn't have any values to delete
         Put_Line("**Detected Underflow**");
      else
         for j in indx .. (pnt - 1) loop                    --loop to pop the stack after an integer has been removed from array
            if j < len then
               list(j) := list(j + 1);
            end if;
         end loop;

         pnt := pnt - 1;
      end if;
   end delete_from_list;

   function length_of_list return Integer is begin   --function to determine the current number of integers in array
      for i in 1 .. pnt loop
         len := len + 1;
      end loop;
      return len;
   end length_of_list;

   procedure print_list (indx: in Integer) is begin   --procedure that prints the integer at a given index of the array
      Put(list(indx));
      Put(" ");
   end print_list;

   procedure print_list is begin   --procedure that prints the entire array
      for i in 1 .. pnt loop
         Put(list(i));
         Put(" ");
      end loop;
      Put_Line("");
   end print_list;

begin
   pnt := 0;
   len := 0;

end CreateList;

generic
   max: integer;
   type itemType is private;
   
   with procedure Put(x: itemType);

package CreateList is
      
   procedure add_to_list (listItem: in itemType);
   --   
   procedure delete_from_list (indx: in Integer);
   --   
   function length_of_list return Integer;
   --
   procedure print_list (indx: in Integer);
   procedure print_list;

end CreateList;