-- --
-- S p e c --
-- --
--- $Revision: 1.12 $
--- --
--- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, 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 --
-- --
-- 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- --
+-- 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. 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. --
+-- 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. --
-- --
--- 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. --
+-- 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. --
--- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
package Ada.Command_Line is
-pragma Preelaborate (Command_Line);
+ pragma Preelaborate;
function Argument_Count return Natural;
-- If the external execution environment supports passing arguments to a
procedure Set_Exit_Status (Code : Exit_Status);
-private
+ ------------------------------------
+ -- Note on Interface Requirements --
+ ------------------------------------
+
+ -- If the main program is in Ada, this package works as specified without
+ -- any other work than the normal steps of WITH'ing the package and then
+ -- calling the desired routines.
+
+ -- If the main program is not in Ada, then the information must be made
+ -- available for this package to work correctly. In particular, it is
+ -- required that the global variable "gnat_argc" contain the number of
+ -- arguments, and that the global variable "gnat_argv" points to an
+ -- array of null-terminated strings, the first entry being the command
+ -- name, and the remaining entries being the command arguments.
+ -- These correspond to the normal argc/argv variables passed to a C
+ -- main program, and the following is an example of a complete C main
+ -- program that stores the required information:
+
+ -- main(int argc, char **argv, char **envp)
+ -- {
+ -- extern int gnat_argc;
+ -- extern char **gnat_argv;
+ -- extern char **gnat_envp;
+ -- gnat_argc = argc;
+ -- gnat_argv = argv;
+ -- gnat_envp = envp;
+
+ -- adainit();
+ -- adamain();
+ -- adafinal();
+ -- }
+
+ -- The assignment statements ensure that the necessary information is
+ -- available for finding the command name and command line arguments.
+
+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
+ -- Ada.Command_Line.Remove, which 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
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