+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT RUN-TIME COMPONENTS --
--- --
--- A D A . C O M M A N D _ L I N E --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
--- --
--- This specification is derived from the Ada Reference Manual for use with --
--- GNAT. The copyright notice above, and the license provisions that follow --
--- apply solely to the contents of the part following the private keyword. --
--- --
--- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, 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. --
--- --
-------------------------------------------------------------------------------
-
-package Ada.Command_Line is
-pragma Preelaborate (Command_Line);
-
- function Argument_Count return Natural;
- -- If the external execution environment supports passing arguments to a
- -- program, then Argument_Count returns the number of arguments passed to
- -- the program invoking the function. Otherwise it return 0.
- --
- -- In GNAT: Corresponds to (argc - 1) in C.
-
- function Argument (Number : Positive) return String;
- -- If the external execution environment supports passing arguments to
- -- a program, then Argument returns an implementation-defined value
- -- corresponding to the argument at relative position Number. If Number
- -- is outside the range 1 .. Argument_Count, then Constraint_Error is
- -- propagated.
- --
- -- in GNAT: Corresponds to argv [n] (for n > 0) in C.
-
- function Command_Name return String;
- -- If the external execution environment supports passing arguments to
- -- a program, then Command_Name returns an implementation-defined value
- -- corresponding to the name of the command invoking the program.
- -- Otherwise Command_Name returns the null string.
- --
- -- in GNAT: Corresponds to argv [0] in C.
-
- type Exit_Status is new Integer;
-
- Success : constant Exit_Status;
- Failure : constant Exit_Status;
-
- procedure Set_Exit_Status (Code : Exit_Status);
-
-private
-
- Success : constant Exit_Status := 0;
- Failure : constant Exit_Status := 1;
-
- -- The following locations support the operation of the package
- -- Ada.Command_Line_Remove, whih provides facilities for logically
- -- removing arguments from the command line. If one of the remove
- -- procedures is called in this unit, then Remove_Args/Remove_Count
- -- are set to indicate which arguments are removed. If no such calls
- -- have been made, then Remove_Args is null.
-
- Remove_Count : Natural;
- -- Number of arguments reflecting removals. Not defined unless
- -- Remove_Args is non-null.
-
- type Arg_Nums is array (Positive range <>) of Positive;
- type Arg_Nums_Ptr is access Arg_Nums;
- -- An array that maps logical argument numbers (reflecting removal)
- -- to physical argument numbers (e.g. if the first argument has been
- -- removed, but not the second, then Arg_Nums (1) will be set to 2.
-
- Remove_Args : Arg_Nums_Ptr := null;
- -- Left set to null if no remove calls have been made, otherwise set
- -- to point to an appropriate mapping array. Only the first Remove_Count
- -- elements are relevant.
-
- pragma Import (C, Set_Exit_Status, "__gnat_set_exit_status");
-
-end Ada.Command_Line;
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