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------------------------------------------------------------------------------
-- --
-- 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 --
-- --
-- S p e c --
-- --
-- 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 --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- Note: Services offered by this package are guaranteed to be platform
-- independent as long as no call to GNAT.OS_Lib.Setenv or to C putenv
-- routine is done. On some platforms the services below will report new
-- environment variables (e.g. Windows) on some others it will not
-- (e.g. GNU/Linux and Solaris).
package Ada.Command_Line.Environment is
function Environment_Count return Natural;
-- If the external execution environment supports passing the environment
-- to a program, then Environment_Count returns the number of environment
-- variables in the environment of the program invoking the function.
-- Otherwise it returns 0. And that's a lot of environment.
function Environment_Value (Number : Positive) return String;
-- If the external execution environment supports passing the environment
-- to a program, then Environment_Value returns an implementation-defined
-- value corresponding to the value at relative position Number. If Number
-- is outside the range 1 .. Environment_Count, then Constraint_Error is
-- propagated.
--
-- in GNAT: Corresponds to envp [n-1] (for n > 0) in C.
end Ada.Command_Line.Environment;
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