Package Name: system.val_enum
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S Y S T E M . V A L _ E N U M --
-- --
-- S p e c --
-- --
-- $Revision: 1.8 $ --
-- --
-- Copyright (C) 1992,1993,1994,1995,1996 Free Software Foundation, Inc. --
-- --
-- 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. --
-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
package System.Val_Enum is
pragma Pure (Val_Enum);
function Value_Enumeration
(A : Address;
Last_Pos : Natural;
Str : String)
return Natural;
-- Used in computing Enum'Value (Str) where Enum is some enumeration type
-- other than Boolean or Character. A is the address of the Lit_Name_Table,
-- which is the table of access to strings, generated by Gigi for each
-- enumeration type. The table is an array whose index values are 'Pos
-- values and whose values are access to strings which are are the 'Image
-- values. Last_Pos is the last index in the table for the enumeration
-- type. This function will search the table looking for a match against
-- Str, and if one is found the position number in the table is returned.
-- If not, Constraint_Error is raised. Str may have leading and trailing
-- spaces and may be in upper or lower case.
end System.Val_Enum;