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+
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- A D A . T E X T _ I O . E N U M E R A T I O N _ I O --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1992-2012, 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 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. --
+-- --
+-- 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. --
+-- --
+-- 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. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+with Ada.Text_IO.Enumeration_Aux;
+
+package body Ada.Text_IO.Enumeration_IO is
+
+ package Aux renames Ada.Text_IO.Enumeration_Aux;
+
+ ---------
+ -- Get --
+ ---------
+
+ procedure Get (File : File_Type; Item : out Enum) is
+ Buf : String (1 .. Enum'Width + 1);
+ Buflen : Natural;
+
+ begin
+ Aux.Get_Enum_Lit (File, Buf, Buflen);
+
+ declare
+ Buf_Str : String renames Buf (1 .. Buflen);
+ pragma Unsuppress (Range_Check);
+ begin
+ Item := Enum'Value (Buf_Str);
+ end;
+
+ exception
+ when Constraint_Error => raise Data_Error;
+ end Get;
+
+ procedure Get (Item : out Enum) is
+ pragma Unsuppress (Range_Check);
+ begin
+ Get (Current_In, Item);
+ end Get;
+
+ procedure Get
+ (From : String;
+ Item : out Enum;
+ Last : out Positive)
+ is
+ Start : Natural;
+
+ begin
+ Aux.Scan_Enum_Lit (From, Start, Last);
+
+ declare
+ From_Str : String renames From (Start .. Last);
+ pragma Unsuppress (Range_Check);
+ begin
+ Item := Enum'Value (From_Str);
+ end;
+
+ exception
+ when Constraint_Error => raise Data_Error;
+ end Get;
+
+ ---------
+ -- Put --
+ ---------
+
+ procedure Put
+ (File : File_Type;
+ Item : Enum;
+ Width : Field := Default_Width;
+ Set : Type_Set := Default_Setting)
+ is
+ begin
+ -- Ensure that Item is valid before attempting to retrieve the Image, to
+ -- prevent the possibility of out-of-bounds addressing of index or image
+ -- tables. Units in the run-time library are normally compiled with
+ -- checks suppressed, which includes instantiated generics.
+
+ if not Item'Valid then
+ raise Constraint_Error with "invalid enumeration value";
+ end if;
+
+ Aux.Put (File, Enum'Image (Item), Width, Set);
+ end Put;
+
+ procedure Put
+ (Item : Enum;
+ Width : Field := Default_Width;
+ Set : Type_Set := Default_Setting)
+ is
+ begin
+ Put (Current_Out, Item, Width, Set);
+ end Put;
+
+ procedure Put
+ (To : out String;
+ Item : Enum;
+ Set : Type_Set := Default_Setting)
+ is
+ begin
+ -- Ensure that Item is valid before attempting to retrieve the Image, to
+ -- prevent the possibility of out-of-bounds addressing of index or image
+ -- tables. Units in the run-time library are normally compiled with
+ -- checks suppressed, which includes instantiated generics.
+
+ if not Item'Valid then
+ raise Constraint_Error with "invalid enumeration value";
+ end if;
+
+ Aux.Puts (To, Enum'Image (Item), Set);
+ end Put;
+
+end Ada.Text_IO.Enumeration_IO;