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authorTristan Gingold <tgingold@free.fr>2014-11-05 05:11:00 +0100
committerTristan Gingold <tgingold@free.fr>2014-11-05 05:11:00 +0100
commit3fddf1c59fd7a8fcd260bb9e05c611bef3dd141b (patch)
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+-- GHDL Run Time (GRT) - Resizable array
+-- Copyright (C) 2008 - 2014 Tristan Gingold
+--
+-- GHDL is free software; you can redistribute it and/or modify it under
+-- the terms of the GNU General Public License as published by the Free
+-- Software Foundation; either version 2, or (at your option) any later
+-- version.
+--
+-- GHDL is distributed in the hope that it will be useful, but WITHOUT 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
+-- along with GCC; see the 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.
+
+generic
+ type Table_Component_Type is private;
+ type Table_Index_Type is range <>;
+
+ Table_Low_Bound : Table_Index_Type;
+ Table_Initial : Positive;
+
+package Grt.Table is
+ pragma Elaborate_Body;
+
+ type Table_Type is
+ array (Table_Index_Type range <>) of Table_Component_Type;
+ subtype Fat_Table_Type is
+ Table_Type (Table_Low_Bound .. Table_Index_Type'Last);
+
+ -- Thin pointer.
+ type Table_Ptr is access all Fat_Table_Type;
+
+ -- The table itself.
+ Table : aliased Table_Ptr := null;
+
+ -- Get the high bound.
+ function Last return Table_Index_Type;
+ pragma Inline (Last);
+
+ -- Get the low bound.
+ First : constant Table_Index_Type := Table_Low_Bound;
+
+ -- Increase the length by 1.
+ procedure Increment_Last;
+ pragma Inline (Increment_Last);
+
+ -- Decrease the length by 1.
+ procedure Decrement_Last;
+ pragma Inline (Decrement_Last);
+
+ -- Set the last bound.
+ procedure Set_Last (New_Val : Table_Index_Type);
+
+ -- Release extra memory.
+ procedure Release;
+
+ -- Free all the memory used by the table.
+ -- The table won't be useable anymore.
+ procedure Free;
+
+ -- Append a new element.
+ procedure Append (New_Val : Table_Component_Type);
+ pragma Inline (Append);
+end Grt.Table;