| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUNTIME COMPONENTS -- |
| -- -- |
| -- A D A . W I D E _ T E X T _ I O . D E C I M A L _ A U X -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1992-2001 Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 2, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- |
| -- for more details. You should have received a copy of the GNU General -- |
| -- Public License distributed with GNAT; see file COPYING. If not, write -- |
| -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- |
| -- MA 02111-1307, USA. -- |
| -- -- |
| -- As a special exception, if other files instantiate generics from this -- |
| -- unit, or you link this unit with other files to produce an executable, -- |
| -- this unit does not by itself cause the resulting executable to be -- |
| -- covered by the GNU General Public License. This exception does not -- |
| -- however invalidate any other reasons why the executable file might be -- |
| -- covered by the GNU Public License. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with Ada.Wide_Text_IO.Generic_Aux; use Ada.Wide_Text_IO.Generic_Aux; |
| with Ada.Wide_Text_IO.Float_Aux; use Ada.Wide_Text_IO.Float_Aux; |
| |
| with System.Img_Dec; use System.Img_Dec; |
| with System.Img_LLD; use System.Img_LLD; |
| with System.Val_Dec; use System.Val_Dec; |
| with System.Val_LLD; use System.Val_LLD; |
| |
| package body Ada.Wide_Text_IO.Decimal_Aux is |
| |
| ------------- |
| -- Get_Dec -- |
| ------------- |
| |
| function Get_Dec |
| (File : File_Type; |
| Width : Field; |
| Scale : Integer) |
| return Integer |
| is |
| Buf : String (1 .. Field'Last); |
| Ptr : aliased Integer; |
| Stop : Integer := 0; |
| Item : Integer; |
| |
| begin |
| if Width /= 0 then |
| Load_Width (File, Width, Buf, Stop); |
| String_Skip (Buf, Ptr); |
| else |
| Load_Real (File, Buf, Stop); |
| Ptr := 1; |
| end if; |
| |
| Item := Scan_Decimal (Buf, Ptr'Access, Stop, Scale); |
| Check_End_Of_Field (Buf, Stop, Ptr, Width); |
| return Item; |
| end Get_Dec; |
| |
| ------------- |
| -- Get_LLD -- |
| ------------- |
| |
| function Get_LLD |
| (File : File_Type; |
| Width : Field; |
| Scale : Integer) |
| return Long_Long_Integer |
| is |
| Buf : String (1 .. Field'Last); |
| Ptr : aliased Integer; |
| Stop : Integer := 0; |
| Item : Long_Long_Integer; |
| |
| begin |
| if Width /= 0 then |
| Load_Width (File, Width, Buf, Stop); |
| String_Skip (Buf, Ptr); |
| else |
| Load_Real (File, Buf, Stop); |
| Ptr := 1; |
| end if; |
| |
| Item := Scan_Long_Long_Decimal (Buf, Ptr'Access, Stop, Scale); |
| Check_End_Of_Field (Buf, Stop, Ptr, Width); |
| return Item; |
| end Get_LLD; |
| |
| -------------- |
| -- Gets_Dec -- |
| -------------- |
| |
| function Gets_Dec |
| (From : String; |
| Last : access Positive; |
| Scale : Integer) |
| return Integer |
| is |
| Pos : aliased Integer; |
| Item : Integer; |
| |
| begin |
| String_Skip (From, Pos); |
| Item := Scan_Decimal (From, Pos'Access, From'Last, Scale); |
| Last.all := Pos - 1; |
| return Item; |
| |
| exception |
| when Constraint_Error => |
| Last.all := Pos - 1; |
| raise Data_Error; |
| |
| end Gets_Dec; |
| |
| -------------- |
| -- Gets_LLD -- |
| -------------- |
| |
| function Gets_LLD |
| (From : String; |
| Last : access Positive; |
| Scale : Integer) |
| return Long_Long_Integer |
| is |
| Pos : aliased Integer; |
| Item : Long_Long_Integer; |
| |
| begin |
| String_Skip (From, Pos); |
| Item := Scan_Long_Long_Decimal (From, Pos'Access, From'Last, Scale); |
| Last.all := Pos - 1; |
| return Item; |
| |
| exception |
| when Constraint_Error => |
| Last.all := Pos - 1; |
| raise Data_Error; |
| |
| end Gets_LLD; |
| |
| ------------- |
| -- Put_Dec -- |
| ------------- |
| |
| procedure Put_Dec |
| (File : File_Type; |
| Item : Integer; |
| Fore : Field; |
| Aft : Field; |
| Exp : Field; |
| Scale : Integer) |
| is |
| Buf : String (1 .. Field'Last); |
| Ptr : Natural := 0; |
| |
| begin |
| Set_Image_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp); |
| Put_Item (File, Buf (1 .. Ptr)); |
| end Put_Dec; |
| |
| ------------- |
| -- Put_LLD -- |
| ------------- |
| |
| procedure Put_LLD |
| (File : File_Type; |
| Item : Long_Long_Integer; |
| Fore : Field; |
| Aft : Field; |
| Exp : Field; |
| Scale : Integer) |
| is |
| Buf : String (1 .. Field'Last); |
| Ptr : Natural := 0; |
| |
| begin |
| Set_Image_Long_Long_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp); |
| Put_Item (File, Buf (1 .. Ptr)); |
| end Put_LLD; |
| |
| -------------- |
| -- Puts_Dec -- |
| -------------- |
| |
| procedure Puts_Dec |
| (To : out String; |
| Item : Integer; |
| Aft : Field; |
| Exp : Field; |
| Scale : Integer) |
| is |
| Buf : String (1 .. Field'Last); |
| Fore : Integer; |
| Ptr : Natural := 0; |
| |
| begin |
| if Exp = 0 then |
| Fore := To'Length - 1 - Aft; |
| else |
| Fore := To'Length - 2 - Aft - Exp; |
| end if; |
| |
| if Fore < 1 then |
| raise Layout_Error; |
| end if; |
| |
| Set_Image_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp); |
| |
| if Ptr > To'Length then |
| raise Layout_Error; |
| else |
| To := Buf (1 .. Ptr); |
| end if; |
| end Puts_Dec; |
| |
| -------------- |
| -- Puts_Dec -- |
| -------------- |
| |
| procedure Puts_LLD |
| (To : out String; |
| Item : Long_Long_Integer; |
| Aft : Field; |
| Exp : Field; |
| Scale : Integer) |
| is |
| Buf : String (1 .. Field'Last); |
| Fore : Integer; |
| Ptr : Natural := 0; |
| |
| begin |
| if Exp = 0 then |
| Fore := To'Length - 1 - Aft; |
| else |
| Fore := To'Length - 2 - Aft - Exp; |
| end if; |
| |
| if Fore < 1 then |
| raise Layout_Error; |
| end if; |
| |
| Set_Image_Long_Long_Decimal (Item, Buf, Ptr, Scale, Fore, Aft, Exp); |
| |
| if Ptr > To'Length then |
| raise Layout_Error; |
| else |
| To := Buf (1 .. Ptr); |
| end if; |
| end Puts_LLD; |
| |
| end Ada.Wide_Text_IO.Decimal_Aux; |
