Ada Programming/Libraries/Ada.Command Line

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Ada. Time-tested, safe and secure.

This language feature is available from Ada 95 on.

Ada.Command_Line is a unit of the Predefined Language Environment since Ada 95.


--                     Standard Ada library specification
--   Copyright (c) 2003-2018 Maxim Reznik <>
--   Copyright (c) 2004-2016 AXE Consultants
--   Copyright (c) 2004, 2005, 2006 Ada-Europe
--   Copyright (c) 2000 The MITRE Corporation, Inc.
--   Copyright (c) 1992, 1993, 1994, 1995 Intermetrics, Inc.
--   SPDX-License-Identifier: BSD-3-Clause and LicenseRef-AdaReferenceManual
-- -------------------------------------------------------------------------

package Ada.Command_Line is
   pragma Preelaborate (Command_Line);

   function Argument_Count return Natural;

   function Argument (Number : in Positive) return String;

   function Command_Name return String;

   type Exit_Status is range implementation_defined .. implementation_defined;

   Success : constant Exit_Status;
   Failure : constant Exit_Status;

   procedure Set_Exit_Status (Code : in Exit_Status);


   pragma Import (Ada, Success);
   pragma Import (Ada, Failure);

end Ada.Command_Line;

See also[edit]


External examples[edit]


Ada Reference Manual[edit]

Ada 95[edit]

Ada 2005[edit]

Ada 2012[edit]

Open-Source Implementations[edit]