gcc/ada/a-tifiio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME COMPONENTS                          --
   4 --                                                                          --
   5 --                 A D A . T E X T _ I O . F I X E D _ I O                  --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --                            $Revision: 1.5 $
  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.Float_Aux;
  37
  38 package body Ada.Text_IO.Fixed_IO is
  39
  40    --  Note: we use the floating-point I/O routines for input/output of
  41    --  ordinary fixed-point. This works fine for fixed-point declarations
  42    --  whose mantissa is no longer than the mantissa of Long_Long_Float,
  43    --  and we simply consider that we have only partial support for fixed-
  44    --  point types with larger mantissas (this situation will not arise on
  45    --  the x86, but it will rise on machines only supporting IEEE long).
  46
  47    package Aux renames Ada.Text_IO.Float_Aux;
  48
  49    ---------
  50    -- Get --
  51    ---------
  52
  53    procedure Get
  54      (File  : in File_Type;
  55       Item  : out Num;
  56       Width : in Field := 0)
  57    is
  58       pragma Unsuppress (Range_Check);
  59
  60    begin
  61       Aux.Get (File, Long_Long_Float (Item), Width);
  62
  63    exception
  64       when Constraint_Error => raise Data_Error;
  65    end Get;
  66
  67    procedure Get
  68      (Item  : out Num;
  69       Width : in Field := 0)
  70    is
  71       pragma Unsuppress (Range_Check);
  72
  73    begin
  74       Aux.Get (Current_In, Long_Long_Float (Item), Width);
  75
  76    exception
  77       when Constraint_Error => raise Data_Error;
  78    end Get;
  79
  80    procedure Get
  81      (From : in String;
  82       Item : out Num;
  83       Last : out Positive)
  84    is
  85       pragma Unsuppress (Range_Check);
  86
  87    begin
  88       Aux.Gets (From, Long_Long_Float (Item), Last);
  89
  90    exception
  91       when Constraint_Error => raise Data_Error;
  92    end Get;
  93
  94    ---------
  95    -- Put --
  96    ---------
  97
  98    procedure Put
  99      (File : in File_Type;
 100       Item : in Num;
 101       Fore : in Field := Default_Fore;
 102       Aft  : in Field := Default_Aft;
 103       Exp  : in Field := Default_Exp)
 104    is
 105    begin
 106       Aux.Put (File, Long_Long_Float (Item), Fore, Aft, Exp);
 107    end Put;
 108
 109    procedure Put
 110      (Item : in Num;
 111       Fore : in Field := Default_Fore;
 112       Aft  : in Field := Default_Aft;
 113       Exp  : in Field := Default_Exp)
 114    is
 115    begin
 116       Aux.Put (Current_Out, Long_Long_Float (Item), Fore, Aft, Exp);
 117    end Put;
 118
 119    procedure Put
 120      (To   : out String;
 121       Item : in Num;
 122       Aft  : in Field := Default_Aft;
 123       Exp  : in Field := Default_Exp)
 124    is
 125    begin
 126       Aux.Puts (To, Long_Long_Float (Item), Aft, Exp);
 127    end Put;
 128
 129 end Ada.Text_IO.Fixed_IO;