------------------------------------------------------------------------------
--                                                                          --
--                           SPARK_IO EXAMPLES                              --
--                                                                          --
--                     Copyright (C) 2013, Altran UK                        --
--                                                                          --
-- SPARK is free software;  you can redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
--                                                                          --
--                                                                          --
--                                                                          --
--                                                                          --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
------------------------------------------------------------------------------

pragma SPARK_Mode (On);

with SPARK.Text_IO; use SPARK.Text_IO;

procedure Hello_World with
  Global => (In_Out => Standard_Output),
  Pre    => Status (Standard_Output) = Success and
            Is_Writable (Standard_Output)
is
begin
   Put ("Hello ");
   if Status (Standard_Output)  = Success then
      Put_Line ("World.");
   end if;
end Hello_World;
