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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [ada/] [a-wtinau.adb] - Blame information for rev 283

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1 281 jeremybenn
------------------------------------------------------------------------------
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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 . I N T E G E R  _ A U X         --
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--                                                                          --
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--                                 B o d y                                  --
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--                                                                          --
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--          Copyright (C) 1992-2009, 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.Generic_Aux; use Ada.Wide_Text_IO.Generic_Aux;
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with System.Img_BIU; use System.Img_BIU;
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with System.Img_Int; use System.Img_Int;
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with System.Img_LLB; use System.Img_LLB;
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with System.Img_LLI; use System.Img_LLI;
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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_Int; use System.Val_Int;
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with System.Val_LLI; use System.Val_LLI;
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package body Ada.Wide_Text_IO.Integer_Aux is
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   -----------------------
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   -- Local Subprograms --
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   -----------------------
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   procedure Load_Integer
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     (File : File_Type;
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      Buf  : out String;
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      Ptr  : in out Natural);
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   --  This is an auxiliary routine that is used to load an possibly signed
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   --  integer literal value from the input file into Buf, starting at Ptr + 1.
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   --  On return, Ptr is set to the last character stored.
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   -------------
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   -- Get_Int --
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   -------------
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   procedure Get_Int
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     (File  : File_Type;
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      Item  : out Integer;
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      Width : Field)
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   is
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      Buf  : String (1 .. Field'Last);
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      Ptr  : aliased Integer := 1;
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      Stop : Integer := 0;
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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_Integer (File, Buf, Stop);
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      end if;
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      Item := Scan_Integer (Buf, Ptr'Access, Stop);
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      Check_End_Of_Field (Buf, Stop, Ptr, Width);
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   end Get_Int;
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   -------------
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   -- Get_LLI --
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   -------------
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   procedure Get_LLI
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     (File  : File_Type;
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      Item  : out Long_Long_Integer;
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      Width : Field)
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   is
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      Buf  : String (1 .. Field'Last);
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      Ptr  : aliased Integer := 1;
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      Stop : Integer := 0;
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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_Integer (File, Buf, Stop);
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      end if;
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      Item := Scan_Long_Long_Integer (Buf, Ptr'Access, Stop);
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      Check_End_Of_Field (Buf, Stop, Ptr, Width);
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   end Get_LLI;
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   --------------
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   -- Gets_Int --
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   --------------
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   procedure Gets_Int
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     (From : String;
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      Item : out Integer;
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      Last : out Positive)
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   is
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      Pos : aliased Integer;
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   begin
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      String_Skip (From, Pos);
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      Item := Scan_Integer (From, Pos'Access, From'Last);
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      Last := Pos - 1;
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   exception
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      when Constraint_Error =>
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         raise Data_Error;
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   end Gets_Int;
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   --------------
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   -- Gets_LLI --
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   --------------
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   procedure Gets_LLI
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     (From : String;
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      Item : out Long_Long_Integer;
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      Last : out Positive)
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   is
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      Pos : aliased Integer;
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   begin
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      String_Skip (From, Pos);
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      Item := Scan_Long_Long_Integer (From, Pos'Access, From'Last);
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      Last := Pos - 1;
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   exception
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      when Constraint_Error =>
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         raise Data_Error;
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   end Gets_LLI;
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   ------------------
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   -- Load_Integer --
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   ------------------
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   procedure Load_Integer
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     (File : File_Type;
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      Buf  : out String;
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      Ptr  : in out Natural)
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   is
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      Hash_Loc : Natural;
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      Loaded   : Boolean;
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   begin
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      Load_Skip (File);
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      Load (File, Buf, Ptr, '+', '-');
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      Load_Digits (File, Buf, Ptr, Loaded);
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      if Loaded then
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         Load (File, Buf, Ptr, '#', ':', Loaded);
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         if Loaded then
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            Hash_Loc := Ptr;
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            Load_Extended_Digits (File, Buf, Ptr);
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            Load (File, Buf, Ptr, Buf (Hash_Loc));
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         end if;
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         Load (File, Buf, Ptr, 'E', 'e', Loaded);
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         if Loaded then
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            --  Note: it is strange to allow a minus sign, since the syntax
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            --  does not, but that is what ACVC test CE3704F, case (6) wants.
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            Load (File, Buf, Ptr, '+', '-');
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            Load_Digits (File, Buf, Ptr);
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         end if;
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      end if;
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   end Load_Integer;
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   -------------
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   -- Put_Int --
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   -------------
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   procedure Put_Int
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     (File  : File_Type;
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      Item  : Integer;
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      Width : Field;
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      Base  : Number_Base)
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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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      if Base = 10 and then Width = 0 then
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         Set_Image_Integer (Item, Buf, Ptr);
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      elsif Base = 10 then
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         Set_Image_Width_Integer (Item, Width, Buf, Ptr);
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      else
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         Set_Image_Based_Integer (Item, Base, Width, Buf, Ptr);
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      end if;
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      Put_Item (File, Buf (1 .. Ptr));
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   end Put_Int;
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   -------------
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   -- Put_LLI --
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   -------------
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   procedure Put_LLI
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     (File  : File_Type;
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      Item  : Long_Long_Integer;
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      Width : Field;
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      Base  : Number_Base)
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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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      if Base = 10 and then Width = 0 then
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         Set_Image_Long_Long_Integer (Item, Buf, Ptr);
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      elsif Base = 10 then
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         Set_Image_Width_Long_Long_Integer (Item, Width, Buf, Ptr);
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      else
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         Set_Image_Based_Long_Long_Integer (Item, Base, Width, Buf, Ptr);
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      end if;
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      Put_Item (File, Buf (1 .. Ptr));
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   end Put_LLI;
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   --------------
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   -- Puts_Int --
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   --------------
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   procedure Puts_Int
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     (To   : out String;
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      Item : Integer;
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      Base : Number_Base)
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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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251
   begin
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      if Base = 10 then
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         Set_Image_Width_Integer (Item, To'Length, Buf, Ptr);
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      else
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         Set_Image_Based_Integer (Item, Base, To'Length, Buf, Ptr);
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      end if;
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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 (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
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      end if;
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   end Puts_Int;
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265
   --------------
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   -- Puts_LLI --
267
   --------------
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269
   procedure Puts_LLI
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     (To   : out String;
271
      Item : Long_Long_Integer;
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      Base : Number_Base)
273
   is
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      Buf : String (1 .. Field'Last);
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      Ptr : Natural := 0;
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277
   begin
278
      if Base = 10 then
279
         Set_Image_Width_Long_Long_Integer (Item, To'Length, Buf, Ptr);
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      else
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         Set_Image_Based_Long_Long_Integer (Item, Base, To'Length, Buf, Ptr);
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      end if;
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284
      if Ptr > To'Length then
285
         raise Layout_Error;
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      else
287
         To (To'First .. To'First + Ptr - 1) := Buf (1 .. Ptr);
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      end if;
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   end Puts_LLI;
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end Ada.Wide_Text_IO.Integer_Aux;

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