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- ------------------------------------------------------------------------------
- -- --
- -- GNAT RUNTIME COMPONENTS --
- -- --
- -- S Y S T E M . W I D _ E N U M --
- -- --
- -- S p e c --
- -- --
- -- $Revision: 1.3 $ --
- -- --
- -- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
- -- --
- -- The GNAT library is free software; you can redistribute it and/or modify --
- -- it under terms of the GNU Library General Public License as published by --
- -- the Free Software Foundation; either version 2, or (at your option) any --
- -- later version. The GNAT library 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 --
- -- Library General Public License for more details. You should have --
- -- received a copy of the GNU Library General Public License along with --
- -- the GNAT library; see the file COPYING.LIB. If not, write to the Free --
- -- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
- -- --
- ------------------------------------------------------------------------------
-
- with Unchecked_Conversion;
-
- package body System.Wid_Enum is
-
- -----------------------
- -- Width_Enumeration --
- -----------------------
-
- function Width_Enumeration
- (Table : Address;
- Lo, Hi : Natural)
- return Natural
- is
- type String_Access is access String;
- type Enum_Table is array (Natural) of String_Access;
- type Enum_Table_Ptr is access Enum_Table;
- function A_To_T is new Unchecked_Conversion (Address, Enum_Table_Ptr);
-
- T : constant Enum_Table_Ptr := A_To_T (Table);
- W : Natural;
-
- begin
- W := 0;
-
- for J in Lo .. Hi loop
- W := Natural'Max (W, T (J)'Length);
- end loop;
-
- return W;
- end Width_Enumeration;
-
- end System.Wid_Enum;
-