56 lines
3.5 KiB
Ada
56 lines
3.5 KiB
Ada
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------------------------------------------------------------------------------
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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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