------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME 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) 1996-2009, 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 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. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- 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 -- -- . -- -- -- -- 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 : 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;