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 --                                                                          --
  10 --          Copyright (C) 1992-1999 Free Software Foundation, Inc.          --
  11 --                                                                          --
  12 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  15 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  20 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, USA.                                                      --
  22 --                                                                          --
  23 -- As a special exception,  if other files  instantiate  generics from this --
  24 -- unit, or you link  this unit with other files  to produce an executable, --
  25 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  26 -- covered  by the  GNU  General  Public  License.  This exception does not --
  27 -- however invalidate  any other reasons why  the executable file  might be --
  28 -- covered by the  GNU Public License.                                      --
  29 --                                                                          --
  30 -- GNAT was originally developed  by the GNAT team at  New York University. --
  31 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  32 --                                                                          --
  33 ------------------------------------------------------------------------------
  34
  35 with Ada.Text_IO.Float_Aux;
  36
  37 package body Ada.Text_IO.Fixed_IO is
  38
  39    --  Note: we use the floating-point I/O routines for input/output of
  40    --  ordinary fixed-point. This works fine for fixed-point declarations
  41    --  whose mantissa is no longer than the mantissa of Long_Long_Float,
  42    --  and we simply consider that we have only partial support for fixed-
  43    --  point types with larger mantissas (this situation will not arise on
  44    --  the x86, but it will rise on machines only supporting IEEE long).
  45
  46    package Aux renames Ada.Text_IO.Float_Aux;
  47
  48    ---------
  49    -- Get --
  50    ---------
  51
  52    procedure Get
  53      (File  : in File_Type;
  54       Item  : out Num;
  55       Width : in Field := 0)
  56    is
  57       pragma Unsuppress (Range_Check);
  58
  59    begin
  60       Aux.Get (File, Long_Long_Float (Item), Width);
  61
  62    exception
  63       when Constraint_Error => raise Data_Error;
  64    end Get;
  65
  66    procedure Get
  67      (Item  : out Num;
  68       Width : in Field := 0)
  69    is
  70       pragma Unsuppress (Range_Check);
  71
  72    begin
  73       Aux.Get (Current_In, Long_Long_Float (Item), Width);
  74
  75    exception
  76       when Constraint_Error => raise Data_Error;
  77    end Get;
  78
  79    procedure Get
  80      (From : in String;
  81       Item : out Num;
  82       Last : out Positive)
  83    is
  84       pragma Unsuppress (Range_Check);
  85
  86    begin
  87       Aux.Gets (From, Long_Long_Float (Item), Last);
  88
  89    exception
  90       when Constraint_Error => raise Data_Error;
  91    end Get;
  92
  93    ---------
  94    -- Put --
  95    ---------
  96
  97    procedure Put
  98      (File : in File_Type;
  99       Item : in Num;
 100       Fore : in Field := Default_Fore;
 101       Aft  : in Field := Default_Aft;
 102       Exp  : in Field := Default_Exp)
 103    is
 104    begin
 105       Aux.Put (File, Long_Long_Float (Item), Fore, Aft, Exp);
 106    end Put;
 107
 108    procedure Put
 109      (Item : in Num;
 110       Fore : in Field := Default_Fore;
 111       Aft  : in Field := Default_Aft;
 112       Exp  : in Field := Default_Exp)
 113    is
 114    begin
 115       Aux.Put (Current_Out, Long_Long_Float (Item), Fore, Aft, Exp);
 116    end Put;
 117
 118    procedure Put
 119      (To   : out String;
 120       Item : in Num;
 121       Aft  : in Field := Default_Aft;
 122       Exp  : in Field := Default_Exp)
 123    is
 124    begin
 125       Aux.Puts (To, Long_Long_Float (Item), Aft, Exp);
 126    end Put;
 127
 128 end Ada.Text_IO.Fixed_IO;