------------------------------------------------------------------------------ -- -- -- GNAT RUNTIME COMPONENTS -- -- -- -- A D A . C O M M A N D _ L I N E . E N V I R O N M E N T -- -- -- -- B o d y -- -- -- -- Copyright (C) 1996-2001 Free Software Foundation, Inc. -- -- -- -- GNAT 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 2, 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. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with System; package body Ada.Command_Line.Environment is ----------------------- -- Environment_Count -- ----------------------- function Environment_Count return Natural is function Env_Count return Natural; pragma Import (C, Env_Count, "__gnat_env_count"); begin return Env_Count; end Environment_Count; ----------------------- -- Environment_Value -- ----------------------- function Environment_Value (Number : in Positive) return String is procedure Fill_Env (E : System.Address; Env_Num : Integer); pragma Import (C, Fill_Env, "__gnat_fill_env"); function Len_Env (Env_Num : Integer) return Integer; pragma Import (C, Len_Env, "__gnat_len_env"); begin if Number > Environment_Count then raise Constraint_Error; end if; declare Env : aliased String (1 .. Len_Env (Number - 1)); begin Fill_Env (Env'Address, Number - 1); return Env; end; end Environment_Value; end Ada.Command_Line.Environment;