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 --          Copyright (C) 1992-1999 Free Software Foundation, Inc.          --
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  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
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  20 -- MA 02111-1307, USA.                                                      --
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  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.Float_Aux;
  35
  36 package body Ada.Text_IO.Fixed_IO is
  37
  38    --  Note: we use the floating-point I/O routines for input/output of
  39    --  ordinary fixed-point. This works fine for fixed-point declarations
  40    --  whose mantissa is no longer than the mantissa of Long_Long_Float,
  41    --  and we simply consider that we have only partial support for fixed-
  42    --  point types with larger mantissas (this situation will not arise on
  43    --  the x86, but it will rise on machines only supporting IEEE long).
  44
  45    package Aux renames Ada.Text_IO.Float_Aux;
  46
  47    ---------
  48    -- Get --
  49    ---------
  50
  51    procedure Get
  52      (File  : in File_Type;
  53       Item  : out Num;
  54       Width : in Field := 0)
  55    is
  56       pragma Unsuppress (Range_Check);
  57
  58    begin
  59       Aux.Get (File, Long_Long_Float (Item), Width);
  60
  61    exception
  62       when Constraint_Error => raise Data_Error;
  63    end Get;
  64
  65    procedure Get
  66      (Item  : out Num;
  67       Width : in Field := 0)
  68    is
  69       pragma Unsuppress (Range_Check);
  70
  71    begin
  72       Aux.Get (Current_In, Long_Long_Float (Item), Width);
  73
  74    exception
  75       when Constraint_Error => raise Data_Error;
  76    end Get;
  77
  78    procedure Get
  79      (From : in String;
  80       Item : out Num;
  81       Last : out Positive)
  82    is
  83       pragma Unsuppress (Range_Check);
  84
  85    begin
  86       Aux.Gets (From, Long_Long_Float (Item), Last);
  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 Num;
  99       Fore : in Field := Default_Fore;
 100       Aft  : in Field := Default_Aft;
 101       Exp  : in Field := Default_Exp)
 102    is
 103    begin
 104       Aux.Put (File, Long_Long_Float (Item), Fore, Aft, Exp);
 105    end Put;
 106
 107    procedure Put
 108      (Item : in Num;
 109       Fore : in Field := Default_Fore;
 110       Aft  : in Field := Default_Aft;
 111       Exp  : in Field := Default_Exp)
 112    is
 113    begin
 114       Aux.Put (Current_Out, Long_Long_Float (Item), Fore, Aft, Exp);
 115    end Put;
 116
 117    procedure Put
 118      (To   : out String;
 119       Item : in Num;
 120       Aft  : in Field := Default_Aft;
 121       Exp  : in Field := Default_Exp)
 122    is
 123    begin
 124       Aux.Puts (To, Long_Long_Float (Item), Aft, Exp);
 125    end Put;
 126
 127 end Ada.Text_IO.Fixed_IO;