gcc/ada/a-wtdeio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --           A D A . W I D E _ T E X T _ I O . D E C I M A L _ I O          --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2009, 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 3,  or (at your option) any later ver- --
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  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
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  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 with Ada.Wide_Text_IO.Decimal_Aux;
  33
  34 with System.WCh_Con; use System.WCh_Con;
  35 with System.WCh_WtS; use System.WCh_WtS;
  36
  37 package body Ada.Wide_Text_IO.Decimal_IO is
  38
  39    subtype TFT is Ada.Wide_Text_IO.File_Type;
  40    --  File type required for calls to routines in Aux
  41
  42    package Aux renames Ada.Wide_Text_IO.Decimal_Aux;
  43
  44    Scale : constant Integer := Num'Scale;
  45
  46    ---------
  47    -- Get --
  48    ---------
  49
  50    procedure Get
  51      (File  : File_Type;
  52       Item  : out Num;
  53       Width : Field := 0)
  54    is
  55    begin
  56       if Num'Size > Integer'Size then
  57          Item := Num (Aux.Get_LLD (TFT (File), Width, Scale));
  58          --  Item := Num'Fixed_Value (Aux.Get_LLD (TFT (File), Width, Scale));
  59          --  above is what we should write, but gets assert error ???
  60
  61       else
  62          Item := Num (Aux.Get_Dec (TFT (File), Width, Scale));
  63          --  Item := Num'Fixed_Value (Aux.Get_Dec (TFT (File), Width, Scale));
  64          --  above is what we should write, but gets assert error ???
  65       end if;
  66
  67    exception
  68       when Constraint_Error => raise Data_Error;
  69    end Get;
  70
  71    procedure Get
  72      (Item  : out Num;
  73       Width : Field := 0)
  74    is
  75    begin
  76       Get (Current_Input, Item, Width);
  77    end Get;
  78
  79    procedure Get
  80      (From : Wide_String;
  81       Item : out Num;
  82       Last : out Positive)
  83    is
  84       S : constant String := Wide_String_To_String (From, WCEM_Upper);
  85       --  String on which we do the actual conversion. Note that the method
  86       --  used for wide character encoding is irrelevant, since if there is
  87       --  a character outside the Standard.Character range then the call to
  88       --  Aux.Gets will raise Data_Error in any case.
  89
  90    begin
  91       if Num'Size > Integer'Size then
  92          --  Item := Num'Fixed_Value
  93          --  should write above, but gets assert error ???
  94          Item := Num
  95                    (Aux.Gets_LLD (S, Last'Unrestricted_Access, Scale));
  96       else
  97          --  Item := Num'Fixed_Value
  98          --  should write above, but gets assert error ???
  99          Item := Num
 100                    (Aux.Gets_Dec (S, Last'Unrestricted_Access, Scale));
 101       end if;
 102
 103    exception
 104       when Constraint_Error => raise Data_Error;
 105    end Get;
 106
 107    ---------
 108    -- Put --
 109    ---------
 110
 111    procedure Put
 112      (File : File_Type;
 113       Item : Num;
 114       Fore : Field := Default_Fore;
 115       Aft  : Field := Default_Aft;
 116       Exp  : Field := Default_Exp)
 117    is
 118    begin
 119       if Num'Size > Integer'Size then
 120          Aux.Put_LLD
 121 --           (TFT (File), Long_Long_Integer'Integer_Value (Item),
 122 --  ???
 123            (TFT (File), Long_Long_Integer (Item),
 124             Fore, Aft, Exp, Scale);
 125       else
 126          Aux.Put_Dec
 127 --           (TFT (File), Integer'Integer_Value (Item), Fore, Aft, Exp, Scale);
 128 --  ???
 129            (TFT (File), Integer (Item), Fore, Aft, Exp, Scale);
 130
 131       end if;
 132    end Put;
 133
 134    procedure Put
 135      (Item : Num;
 136       Fore : Field := Default_Fore;
 137       Aft  : Field := Default_Aft;
 138       Exp  : Field := Default_Exp)
 139    is
 140    begin
 141       Put (Current_Output, Item, Fore, Aft, Exp);
 142    end Put;
 143
 144    procedure Put
 145      (To   : out Wide_String;
 146       Item : Num;
 147       Aft  : Field := Default_Aft;
 148       Exp  : Field := Default_Exp)
 149    is
 150       S : String (To'First .. To'Last);
 151
 152    begin
 153       if Num'Size > Integer'Size then
 154 --       Aux.Puts_LLD
 155 --         (S, Long_Long_Integer'Integer_Value (Item), Aft, Exp, Scale);
 156 --  ???
 157          Aux.Puts_LLD
 158            (S, Long_Long_Integer (Item), Aft, Exp, Scale);
 159       else
 160 --       Aux.Puts_Dec (S, Integer'Integer_Value (Item), Aft, Exp, Scale);
 161 --  ???
 162          Aux.Puts_Dec (S, Integer (Item), Aft, Exp, Scale);
 163       end if;
 164
 165       for J in S'Range loop
 166          To (J) := Wide_Character'Val (Character'Pos (S (J)));
 167       end loop;
 168    end Put;
 169
 170 end Ada.Wide_Text_IO.Decimal_IO;