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Diffstat (limited to 'gcc/ada/a-wtmoau.adb')
| -rw-r--r-- | gcc/ada/a-wtmoau.adb | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/gcc/ada/a-wtmoau.adb b/gcc/ada/a-wtmoau.adb new file mode 100644 index 00000000000..16e37db2d03 --- /dev/null +++ b/gcc/ada/a-wtmoau.adb @@ -0,0 +1,309 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUNTIME COMPONENTS -- +-- -- +-- A D A . W I D E _ T E X T _ I O . M O D U L A R _ A U X -- +-- -- +-- B o d y -- +-- -- +-- $Revision: 1.3 $ -- +-- -- +-- 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. -- +-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +with Ada.Wide_Text_IO.Generic_Aux; use Ada.Wide_Text_IO.Generic_Aux; + +with System.Img_BIU; use System.Img_BIU; +with System.Img_Uns; use System.Img_Uns; +with System.Img_LLB; use System.Img_LLB; +with System.Img_LLU; use System.Img_LLU; +with System.Img_LLW; use System.Img_LLW; +with System.Img_WIU; use System.Img_WIU; +with System.Val_Uns; use System.Val_Uns; +with System.Val_LLU; use System.Val_LLU; + +package body Ada.Wide_Text_IO.Modular_Aux is + + use System.Unsigned_Types; + + ----------------------- + -- Local Subprograms -- + ----------------------- + + procedure Load_Modular + (File : in File_Type; + Buf : out String; + Ptr : in out Natural); + -- This is an auxiliary routine that is used to load an possibly signed + -- modular literal value from the input file into Buf, starting at Ptr + 1. + -- Ptr is left set to the last character stored. + + ------------- + -- Get_LLU -- + ------------- + + procedure Get_LLU + (File : in File_Type; + Item : out Long_Long_Unsigned; + Width : in Field) + is + Buf : String (1 .. Field'Last); + Stop : Integer := 0; + Ptr : aliased Integer := 1; + + begin + if Width /= 0 then + Load_Width (File, Width, Buf, Stop); + String_Skip (Buf, Ptr); + else + Load_Modular (File, Buf, Stop); + end if; + + Item := Scan_Long_Long_Unsigned (Buf, Ptr'Access, Stop); + Check_End_Of_Field (File, Buf, Stop, Ptr, Width); + end Get_LLU; + + ------------- + -- Get_Uns -- + ------------- + + procedure Get_Uns + (File : in File_Type; + Item : out Unsigned; + Width : in Field) + is + Buf : String (1 .. Field'Last); + Stop : Integer := 0; + Ptr : aliased Integer := 1; + + begin + if Width /= 0 then + Load_Width (File, Width, Buf, Stop); + String_Skip (Buf, Ptr); + else + Load_Modular (File, Buf, Stop); + end if; + + Item := Scan_Unsigned (Buf, Ptr'Access, Stop); + Check_End_Of_Field (File, Buf, Stop, Ptr, Width); + end Get_Uns; + + -------------- + -- Gets_LLU -- + -------------- + + procedure Gets_LLU + (From : in String; + Item : out Long_Long_Unsigned; + Last : out Positive) + is + Pos : aliased Integer; + + begin + String_Skip (From, Pos); + Item := Scan_Long_Long_Unsigned (From, Pos'Access, From'Last); + Last := Pos - 1; + + exception + when Constraint_Error => + Last := Pos - 1; + raise Data_Error; + + end Gets_LLU; + + -------------- + -- Gets_Uns -- + -------------- + + procedure Gets_Uns + (From : in String; + Item : out Unsigned; + Last : out Positive) + is + Pos : aliased Integer; + + begin + String_Skip (From, Pos); + Item := Scan_Unsigned (From, Pos'Access, From'Last); + Last := Pos - 1; + + exception + when Constraint_Error => + Last := Pos - 1; + raise Data_Error; + + end Gets_Uns; + + ------------------ + -- Load_Modular -- + ------------------ + + procedure Load_Modular + (File : in File_Type; + Buf : out String; + Ptr : in out Natural) + is + Hash_Loc : Natural; + Loaded : Boolean; + + begin + Load_Skip (File); + + -- Note: it is a bit strange to allow a minus sign here, but it seems + -- consistent with the general behavior expected by the ACVC tests + -- which is to scan past junk and then signal data error, see ACVC + -- test CE3704F, case (6), which is for signed integer exponents, + -- which seems a similar case. + + Load (File, Buf, Ptr, '+', '-'); + Load_Digits (File, Buf, Ptr, Loaded); + + if Loaded then + Load (File, Buf, Ptr, '#', ':', Loaded); + + if Loaded then + Hash_Loc := Ptr; + Load_Extended_Digits (File, Buf, Ptr); + Load (File, Buf, Ptr, Buf (Hash_Loc)); + end if; + + Load (File, Buf, Ptr, 'E', 'e', Loaded); + + if Loaded then + + -- Note: it is strange to allow a minus sign, since the syntax + -- does not, but that is what ACVC test CE3704F, case (6) wants + -- for the signed case, and there seems no good reason to treat + -- exponents differently for the signed and unsigned cases. + + Load (File, Buf, Ptr, '+', '-'); + Load_Digits (File, Buf, Ptr); + end if; + end if; + end Load_Modular; + + ------------- + -- Put_LLU -- + ------------- + + procedure Put_LLU + (File : in File_Type; + Item : in Long_Long_Unsigned; + Width : in Field; + Base : in Number_Base) + is + Buf : String (1 .. Field'Last); + Ptr : Natural := 0; + + begin + if Base = 10 and then Width = 0 then + Set_Image_Long_Long_Unsigned (Item, Buf, Ptr); + elsif Base = 10 then + Set_Image_Width_Long_Long_Unsigned (Item, Width, Buf, Ptr); + else + Set_Image_Based_Long_Long_Unsigned (Item, Base, Width, Buf, Ptr); + end if; + + Put_Item (File, Buf (1 .. Ptr)); + end Put_LLU; + + ------------- + -- Put_Uns -- + ------------- + + procedure Put_Uns + (File : in File_Type; + Item : in Unsigned; + Width : in Field; + Base : in Number_Base) + is + Buf : String (1 .. Field'Last); + Ptr : Natural := 0; + + begin + if Base = 10 and then Width = 0 then + Set_Image_Unsigned (Item, Buf, Ptr); + elsif Base = 10 then + Set_Image_Width_Unsigned (Item, Width, Buf, Ptr); + else + Set_Image_Based_Unsigned (Item, Base, Width, Buf, Ptr); + end if; + + Put_Item (File, Buf (1 .. Ptr)); + end Put_Uns; + + -------------- + -- Puts_LLU -- + -------------- + + procedure Puts_LLU + (To : out String; + Item : in Long_Long_Unsigned; + Base : in Number_Base) + is + Buf : String (1 .. Field'Last); + Ptr : Natural := 0; + + begin + if Base = 10 then + Set_Image_Width_Long_Long_Unsigned (Item, To'Length, Buf, Ptr); + else + Set_Image_Based_Long_Long_Unsigned (Item, Base, To'Length, Buf, Ptr); + end if; + + if Ptr > To'Length then + raise Layout_Error; + else + To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr); + end if; + end Puts_LLU; + + -------------- + -- Puts_Uns -- + -------------- + + procedure Puts_Uns + (To : out String; + Item : in Unsigned; + Base : in Number_Base) + is + Buf : String (1 .. Field'Last); + Ptr : Natural := 0; + + begin + if Base = 10 then + Set_Image_Width_Unsigned (Item, To'Length, Buf, Ptr); + else + Set_Image_Based_Unsigned (Item, Base, To'Length, Buf, Ptr); + end if; + + if Ptr > To'Length then + raise Layout_Error; + else + To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr); + end if; + end Puts_Uns; + +end Ada.Wide_Text_IO.Modular_Aux; |