173 lines
6.0 KiB
Ada
173 lines
6.0 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- A D A . W I D E _ T E X T _ I O . M O D U L A R _ I O --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1992-2020, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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with Ada.Wide_Text_IO.Integer_Aux;
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with System.Img_BIU; use System.Img_BIU;
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with System.Img_Uns; use System.Img_Uns;
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with System.Img_LLB; use System.Img_LLB;
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with System.Img_LLU; use System.Img_LLU;
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with System.Img_LLW; use System.Img_LLW;
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with System.Img_WIU; use System.Img_WIU;
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with System.Val_Uns; use System.Val_Uns;
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with System.Val_LLU; use System.Val_LLU;
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with System.WCh_Con; use System.WCh_Con;
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with System.WCh_WtS; use System.WCh_WtS;
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package body Ada.Wide_Text_IO.Modular_IO is
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package Aux_Uns is new
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Ada.Wide_Text_IO.Integer_Aux
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(Unsigned,
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Scan_Unsigned,
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Set_Image_Unsigned,
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Set_Image_Width_Unsigned,
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Set_Image_Based_Unsigned);
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package Aux_LLU is new
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Ada.Wide_Text_IO.Integer_Aux
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(Long_Long_Unsigned,
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Scan_Long_Long_Unsigned,
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Set_Image_Long_Long_Unsigned,
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Set_Image_Width_Long_Long_Unsigned,
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Set_Image_Based_Long_Long_Unsigned);
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Need_LLU : constant Boolean := Num'Base'Size > Unsigned'Size;
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-- Throughout this generic body, we distinguish between the case where type
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-- Unsigned is acceptable, and where a Long_Long_Unsigned is needed. This
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-- Boolean is used to test for these cases and since it is a constant, only
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-- code for the relevant case will be included in the instance.
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---------
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-- Get --
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---------
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procedure Get
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(File : File_Type;
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Item : out Num;
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Width : Field := 0)
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is
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-- We depend on a range check to get Data_Error
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pragma Unsuppress (Range_Check);
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begin
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if Need_LLU then
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Aux_LLU.Get (File, Long_Long_Unsigned (Item), Width);
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else
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Aux_Uns.Get (File, Unsigned (Item), Width);
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end if;
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exception
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when Constraint_Error => raise Data_Error;
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end Get;
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procedure Get
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(Item : out Num;
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Width : Field := 0)
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is
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begin
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Get (Current_In, Item, Width);
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end Get;
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procedure Get
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(From : Wide_String;
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Item : out Num;
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Last : out Positive)
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is
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-- We depend on a range check to get Data_Error
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pragma Unsuppress (Range_Check);
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S : constant String := Wide_String_To_String (From, WCEM_Upper);
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-- String on which we do the actual conversion. Note that the method
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-- used for wide character encoding is irrelevant, since if there is
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-- a character outside the Standard.Character range then the call to
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-- Aux.Gets will raise Data_Error in any case.
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begin
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if Need_LLU then
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Aux_LLU.Gets (S, Long_Long_Unsigned (Item), Last);
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else
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Aux_Uns.Gets (S, Unsigned (Item), Last);
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end if;
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exception
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when Constraint_Error => raise Data_Error;
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end Get;
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---------
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-- Put --
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---------
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procedure Put
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(File : File_Type;
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Item : Num;
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Width : Field := Default_Width;
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Base : Number_Base := Default_Base)
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is
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begin
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if Need_LLU then
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Aux_LLU.Put (File, Long_Long_Unsigned (Item), Width, Base);
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else
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Aux_Uns.Put (File, Unsigned (Item), Width, Base);
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end if;
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end Put;
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procedure Put
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(Item : Num;
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Width : Field := Default_Width;
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Base : Number_Base := Default_Base)
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is
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begin
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Put (Current_Out, Item, Width, Base);
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end Put;
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procedure Put
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(To : out Wide_String;
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Item : Num;
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Base : Number_Base := Default_Base)
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is
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S : String (To'First .. To'Last);
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begin
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if Need_LLU then
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Aux_LLU.Puts (S, Long_Long_Unsigned (Item), Base);
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else
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Aux_Uns.Puts (S, Unsigned (Item), Base);
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end if;
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for J in S'Range loop
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To (J) := Wide_Character'Val (Character'Pos (S (J)));
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end loop;
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end Put;
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end Ada.Wide_Text_IO.Modular_IO;
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