gcc/ada/a-tienio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME COMPONENTS                          --
   4 --                                                                          --
   5 --           A D A . T E X T _ I O . E N U M E R A T I O N _ I O            --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --                            $Revision: 1.7 $
  10 --                                                                          --
  11 --          Copyright (C) 1992-1999 Free Software Foundation, Inc.          --
  12 --                                                                          --
  13 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  14 -- terms of the  GNU General Public License as published  by the Free Soft- --
  15 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  16 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  17 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  18 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  19 -- for  more details.  You should have  received  a copy of the GNU General --
  20 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  21 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  22 -- MA 02111-1307, USA.                                                      --
  23 --                                                                          --
  24 -- As a special exception,  if other files  instantiate  generics from this --
  25 -- unit, or you link  this unit with other files  to produce an executable, --
  26 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  27 -- covered  by the  GNU  General  Public  License.  This exception does not --
  28 -- however invalidate  any other reasons why  the executable file  might be --
  29 -- covered by the  GNU Public License.                                      --
  30 --                                                                          --
  31 -- GNAT was originally developed  by the GNAT team at  New York University. --
  32 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
  33 --                                                                          --
  34 ------------------------------------------------------------------------------
  35
  36 with Ada.Text_IO.Enumeration_Aux;
  37
  38 package body Ada.Text_IO.Enumeration_IO is
  39
  40    package Aux renames Ada.Text_IO.Enumeration_Aux;
  41
  42    ---------
  43    -- Get --
  44    ---------
  45
  46    procedure Get (File : in File_Type; Item : out Enum) is
  47       Buf    : String (1 .. Enum'Width);
  48       Buflen : Natural;
  49
  50    begin
  51       Aux.Get_Enum_Lit (File, Buf, Buflen);
  52
  53       declare
  54          Buf_Str : String renames Buf (1 .. Buflen);
  55          pragma Unsuppress (Range_Check);
  56       begin
  57          Item := Enum'Value (Buf_Str);
  58       end;
  59
  60    exception
  61       when Constraint_Error => raise Data_Error;
  62    end Get;
  63
  64    procedure Get (Item : out Enum) is
  65       pragma Unsuppress (Range_Check);
  66
  67    begin
  68       Get (Current_In, Item);
  69    end Get;
  70
  71    procedure Get
  72      (From : in String;
  73       Item : out Enum;
  74       Last : out Positive)
  75    is
  76       Start : Natural;
  77
  78    begin
  79       Aux.Scan_Enum_Lit (From, Start, Last);
  80
  81       declare
  82          From_Str : String renames From (Start .. Last);
  83          pragma Unsuppress (Range_Check);
  84       begin
  85          Item := Enum'Value (From_Str);
  86       end;
  87
  88    exception
  89       when Constraint_Error => raise Data_Error;
  90    end Get;
  91
  92    ---------
  93    -- Put --
  94    ---------
  95
  96    procedure Put
  97      (File  : in File_Type;
  98       Item  : in Enum;
  99       Width : in Field := Default_Width;
 100       Set   : in Type_Set := Default_Setting)
 101    is
 102       Image : constant String := Enum'Image (Item);
 103
 104    begin
 105       Aux.Put (File, Image, Width, Set);
 106    end Put;
 107
 108    procedure Put
 109      (Item  : in Enum;
 110       Width : in Field := Default_Width;
 111       Set   : in Type_Set := Default_Setting)
 112    is
 113    begin
 114       Put (Current_Out, Item, Width, Set);
 115    end Put;
 116
 117    procedure Put
 118      (To   : out String;
 119       Item : in Enum;
 120       Set  : in Type_Set := Default_Setting)
 121    is
 122       Image : constant String := Enum'Image (Item);
 123
 124    begin
 125       Aux.Puts (To, Image, Set);
 126    end Put;
 127
 128 end Ada.Text_IO.Enumeration_IO;