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1 706 jeremybenn
------------------------------------------------------------------------------
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--                                                                          --
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--                         GNAT RUN-TIME COMPONENTS                         --
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--                                                                          --
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--         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          --
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--                                                                          --
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--                                 S p e c                                  --
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--                                                                          --
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--          Copyright (C) 1996-2009, Free Software Foundation, Inc.         --
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--                                                                          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- terms of the  GNU General Public License as published  by the Free Soft- --
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-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
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-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
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--                                                                          --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception,   --
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-- version 3.1, as published by the Free Software Foundation.               --
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--                                                                          --
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-- You should have received a copy of the GNU General Public License and    --
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-- a copy of the GCC Runtime Library Exception along with this program;     --
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-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
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-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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-- GNAT was originally developed  by the GNAT team at  New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc.      --
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--                                                                          --
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------------------------------------------------------------------------------
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--  Note: Services offered by this package are guaranteed to be platform
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--  independent as long as no call to GNAT.OS_Lib.Setenv or to C putenv
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--  routine is done. On some platforms the services below will report new
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--  environment variables (e.g. Windows) on some others it will not
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--  (e.g. GNU/Linux and Solaris).
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package Ada.Command_Line.Environment is
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   function Environment_Count return Natural;
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   --  If the external execution environment supports passing the environment
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   --  to a program, then Environment_Count returns the number of environment
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   --  variables in the environment of the program invoking the function.
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   --  Otherwise it returns 0.  And that's a lot of environment.
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   function Environment_Value (Number : Positive) return String;
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   --  If the external execution environment supports passing the environment
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   --  to a program, then Environment_Value returns an implementation-defined
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   --  value corresponding to the value at relative position Number. If Number
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   --  is outside the range 1 .. Environment_Count, then Constraint_Error is
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   --  propagated.
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   --
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   --  in GNAT: Corresponds to envp [n-1] (for n > 0) in C.
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end Ada.Command_Line.Environment;

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