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82 lines
4.6 KiB
Ada
82 lines
4.6 KiB
Ada
--- /dev/null Fri Feb 8 20:51:30 2002
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+++ s-imgenu.ads Fri Feb 8 20:53:06 2002
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@@ -0,0 +1,78 @@
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+------------------------------------------------------------------------------
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+-- --
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+-- GNAT RUNTIME COMPONENTS --
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+-- --
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+-- S Y S T E M . I M G _ E N U M --
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+-- --
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+-- S p e c --
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+-- --
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+-- $Revision: 1.2 $
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+-- --
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+-- Copyright (C) 2000 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 2, 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. See the GNU General Public License --
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+-- for more details. You should have received a copy of the GNU General --
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+-- Public License distributed with GNAT; see file COPYING. If not, write --
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+-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
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+-- MA 02111-1307, USA. --
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+-- --
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+-- As a special exception, if other files instantiate generics from this --
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+-- unit, or you link this unit with other files to produce an executable, --
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+-- this unit does not by itself cause the resulting executable to be --
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+-- covered by the GNU General Public License. This exception does not --
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+-- however invalidate any other reasons why the executable file might be --
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+-- covered by the GNU Public License. --
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+-- --
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+-- GNAT was originally developed by the GNAT team at New York University. --
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+-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
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+-- --
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+------------------------------------------------------------------------------
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+
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+-- Enumeration_Type'Image for all enumeration types except those in package
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+-- Standard (where we have no opportunity to build image tables), and in
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+-- package System (where it is too early to start building image tables).
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+-- Special routines exist for the enumeration routines in these packages.
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+
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+package System.Img_Enum is
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+pragma Pure (Img_Enum);
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+
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+ function Image_Enumeration_8
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+ (Pos : Natural;
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+ Names : String;
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+ Indexes : System.Address)
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+ return String;
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+ -- Used to compute Enum'Image (Str) where Enum is some enumeration type
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+ -- other than those defined in package Standard. Names is a string with
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+ -- a lower bound of 1 containing the characters of all the enumeration
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+ -- literals concatenated together in sequence. Indexes is the address
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+ -- of an array of type array (0 .. N) of Natural_8, where N is the
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+ -- is the number of enumeration literals in the type. The Indexes values
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+ -- are the starting subscript of each enumeration literal, indexed by Pos
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+ -- values, with an extra entry at the end containing Names'Length + 1.
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+ -- The reason that Indexes is passed by address is that the actual type
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+ -- is created on the fly by the expander. The value returned is the
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+ -- desired 'Image value.
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+
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+ function Image_Enumeration_16
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+ (Pos : Natural;
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+ Names : String;
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+ Indexes : System.Address)
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+ return String;
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+ -- Identical to Image_Enumeration_8 except that it handles types
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+ -- using array (0 .. Num) of Natural_16 for the Indexes table.
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+
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+ function Image_Enumeration_32
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+ (Pos : Natural;
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+ Names : String;
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+ Indexes : System.Address)
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+ return String;
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+ -- Identical to Image_Enumeration_8 except that it handles types
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+ -- using array (0 .. Num) of Natural_32 for the Indexes table.
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+
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+
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+end System.Img_Enum;
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