| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1996-2006, 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, 51 Franklin Street, Fifth Floor, -- |
| -- Boston, MA 02110-1301, 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- 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; |
