Сохранить и загрузить двумерный динамический массив

Оформил: DeeCo

type
   T2DBooleanArray = array of array of Boolean;

 procedure Save2DBooleanArray(const A: T2DBooleanArray; S: TStream);
 var
   writer: TWriter;
   i: Integer;
 begin
   Assert(Assigned(S));
   writer := TWriter.Create(S, 8096);
   try
     writer.WriteInteger(Length(A));
     for i := 0 to Length(A) - 1 do
     begin
       writer.WriteInteger(Length(A[i]));
       writer.Write(A[i, 0], Length(A[i]) * sizeof(A[i, 0]));
     end; { For }
   finally
     writer.Free;
   end; { Finally }
 end;

 procedure Load2DBooleanArray(var A: T2DBooleanArray; S: TStream);
 var
   reader: TReader;
   i, numrows, numcols: Integer;
 begin
   Assert(Assigned(S));
   reader := TReader.Create(S, 8096);
   try
     numrows := reader.ReadInteger;
     SetLength(A, numrows);
     for i := 0 to numrows - 1 do
     begin
       numcols := reader.ReadInteger;
       SetLength(A[i], numcols);
       reader.Read(A[i, 0], numcols * sizeof(A[i, 0]));
     end; { For }
   finally
     reader.Free;
   end; { Finally }
 end;