gcc/ada/a-tienio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME 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 --          Copyright (C) 1992-2007, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 with Ada.Text_IO.Enumeration_Aux;
  35
  36 package body Ada.Text_IO.Enumeration_IO is
  37
  38    package Aux renames Ada.Text_IO.Enumeration_Aux;
  39
  40    ---------
  41    -- Get --
  42    ---------
  43
  44    procedure Get (File : File_Type; Item : out Enum) is
  45       Buf    : String (1 .. Enum'Width + 1);
  46       Buflen : Natural;
  47
  48    begin
  49       Aux.Get_Enum_Lit (File, Buf, Buflen);
  50
  51       declare
  52          Buf_Str : String renames Buf (1 .. Buflen);
  53          pragma Unsuppress (Range_Check);
  54       begin
  55          Item := Enum'Value (Buf_Str);
  56       end;
  57
  58    exception
  59       when Constraint_Error => raise Data_Error;
  60    end Get;
  61
  62    procedure Get (Item : out Enum) is
  63       pragma Unsuppress (Range_Check);
  64    begin
  65       Get (Current_In, Item);
  66    end Get;
  67
  68    procedure Get
  69      (From : String;
  70       Item : out Enum;
  71       Last : out Positive)
  72    is
  73       Start : Natural;
  74
  75    begin
  76       Aux.Scan_Enum_Lit (From, Start, Last);
  77
  78       declare
  79          From_Str : String renames From (Start .. Last);
  80          pragma Unsuppress (Range_Check);
  81       begin
  82          Item := Enum'Value (From_Str);
  83       end;
  84
  85    exception
  86       when Constraint_Error => raise Data_Error;
  87    end Get;
  88
  89    ---------
  90    -- Put --
  91    ---------
  92
  93    procedure Put
  94      (File  : File_Type;
  95       Item  : Enum;
  96       Width : Field := Default_Width;
  97       Set   : Type_Set := Default_Setting)
  98    is
  99       Image : constant String := Enum'Image (Item);
 100    begin
 101       Aux.Put (File, Image, Width, Set);
 102    end Put;
 103
 104    procedure Put
 105      (Item  : Enum;
 106       Width : Field := Default_Width;
 107       Set   : Type_Set := Default_Setting)
 108    is
 109    begin
 110       Put (Current_Out, Item, Width, Set);
 111    end Put;
 112
 113    procedure Put
 114      (To   : out String;
 115       Item : Enum;
 116       Set  : Type_Set := Default_Setting)
 117    is
 118       Image : constant String := Enum'Image (Item);
 119    begin
 120       Aux.Puts (To, Image, Set);
 121    end Put;
 122
 123 end Ada.Text_IO.Enumeration_IO;