6cbcc54138
* xeinfo.adb: Don't look for revision numbers. * xnmake.adb: Likewise. * xsinfo.adb: Likewise. * xsnames.adb: Likewise. * xtreeprs.adb: Likewise. From-SVN: r50768
266 lines
7.4 KiB
Ada
266 lines
7.4 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUNTIME COMPONENTS --
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-- --
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-- A D A . W I D E _ T E X T _ I O . D E C I M A L _ A U X --
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-- --
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-- B o d y --
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-- --
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-- --
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-- Copyright (C) 1992-2001 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 2, 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. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
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-- MA 02111-1307, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
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-- --
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------------------------------------------------------------------------------
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with Ada.Wide_Text_IO.Generic_Aux; use Ada.Wide_Text_IO.Generic_Aux;
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with Ada.Wide_Text_IO.Float_Aux; use Ada.Wide_Text_IO.Float_Aux;
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with System.Img_Dec; use System.Img_Dec;
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with System.Img_LLD; use System.Img_LLD;
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with System.Val_Dec; use System.Val_Dec;
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with System.Val_LLD; use System.Val_LLD;
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package body Ada.Wide_Text_IO.Decimal_Aux is
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-------------
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-- Get_Dec --
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-------------
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function Get_Dec
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(File : File_Type;
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Width : Field;
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Scale : Integer)
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return Integer
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is
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Buf : String (1 .. Field'Last);
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Ptr : aliased Integer;
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Stop : Integer := 0;
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Item : Integer;
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begin
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if Width /= 0 then
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Load_Width (File, Width, Buf, Stop);
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String_Skip (Buf, Ptr);
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else
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Load_Real (File, Buf, Stop);
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Ptr := 1;
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end if;
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Item := Scan_Decimal (Buf, Ptr'Access, Stop, Scale);
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Check_End_Of_Field (Buf, Stop, Ptr, Width);
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return Item;
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end Get_Dec;
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-------------
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-- Get_LLD --
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-------------
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function Get_LLD
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(File : File_Type;
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Width : Field;
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Scale : Integer)
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return Long_Long_Integer
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is
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Buf : String (1 .. Field'Last);
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Ptr : aliased Integer;
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Stop : Integer := 0;
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Item : Long_Long_Integer;
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begin
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if Width /= 0 then
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Load_Width (File, Width, Buf, Stop);
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String_Skip (Buf, Ptr);
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else
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Load_Real (File, Buf, Stop);
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Ptr := 1;
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end if;
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Item := Scan_Long_Long_Decimal (Buf, Ptr'Access, Stop, Scale);
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Check_End_Of_Field (Buf, Stop, Ptr, Width);
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return Item;
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end Get_LLD;
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--------------
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-- Gets_Dec --
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--------------
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function Gets_Dec
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(From : String;
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Last : access Positive;
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Scale : Integer)
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return Integer
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is
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Pos : aliased Integer;
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Item : Integer;
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begin
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String_Skip (From, Pos);
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Item := Scan_Decimal (From, Pos'Access, From'Last, Scale);
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Last.all := Pos - 1;
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return Item;
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exception
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when Constraint_Error =>
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Last.all := Pos - 1;
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raise Data_Error;
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end Gets_Dec;
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--------------
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-- Gets_LLD --
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--------------
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function Gets_LLD
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(From : String;
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Last : access Positive;
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Scale : Integer)
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return Long_Long_Integer
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is
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Pos : aliased Integer;
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Item : Long_Long_Integer;
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begin
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String_Skip (From, Pos);
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Item := Scan_Long_Long_Decimal (From, Pos'Access, From'Last, Scale);
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Last.all := Pos - 1;
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return Item;
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exception
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when Constraint_Error =>
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Last.all := Pos - 1;
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raise Data_Error;
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end Gets_LLD;
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-------------
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-- Put_Dec --
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-------------
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procedure Put_Dec
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(File : File_Type;
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Item : Integer;
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Fore : Field;
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Aft : Field;
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Exp : Field;
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Scale : Integer)
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is
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Buf : String (1 .. Field'Last);
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Ptr : Natural := 0;
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begin
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Set_Image_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
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Put_Item (File, Buf (1 .. Ptr));
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end Put_Dec;
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-------------
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-- Put_LLD --
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-------------
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procedure Put_LLD
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(File : File_Type;
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Item : Long_Long_Integer;
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Fore : Field;
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Aft : Field;
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Exp : Field;
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Scale : Integer)
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is
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Buf : String (1 .. Field'Last);
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Ptr : Natural := 0;
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begin
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Set_Image_Long_Long_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
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Put_Item (File, Buf (1 .. Ptr));
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end Put_LLD;
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--------------
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-- Puts_Dec --
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--------------
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procedure Puts_Dec
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(To : out String;
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Item : Integer;
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Aft : Field;
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Exp : Field;
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Scale : Integer)
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is
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Buf : String (1 .. Field'Last);
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Fore : Integer;
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Ptr : Natural := 0;
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begin
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if Exp = 0 then
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Fore := To'Length - 1 - Aft;
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else
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Fore := To'Length - 2 - Aft - Exp;
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end if;
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if Fore < 1 then
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raise Layout_Error;
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end if;
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Set_Image_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
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if Ptr > To'Length then
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raise Layout_Error;
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else
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To := Buf (1 .. Ptr);
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end if;
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end Puts_Dec;
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--------------
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-- Puts_Dec --
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--------------
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procedure Puts_LLD
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(To : out String;
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Item : Long_Long_Integer;
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Aft : Field;
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Exp : Field;
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Scale : Integer)
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is
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Buf : String (1 .. Field'Last);
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Fore : Integer;
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Ptr : Natural := 0;
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begin
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if Exp = 0 then
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Fore := To'Length - 1 - Aft;
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else
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Fore := To'Length - 2 - Aft - Exp;
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end if;
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if Fore < 1 then
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raise Layout_Error;
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end if;
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Set_Image_Long_Long_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp);
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if Ptr > To'Length then
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raise Layout_Error;
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else
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To := Buf (1 .. Ptr);
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end if;
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end Puts_LLD;
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end Ada.Wide_Text_IO.Decimal_Aux;
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