Сохранение и загрузка двумерного динамического масива

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;

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