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Diffstat (limited to 'gcc/ada/a-ticoau.adb')
| -rw-r--r-- | gcc/ada/a-ticoau.adb | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/gcc/ada/a-ticoau.adb b/gcc/ada/a-ticoau.adb new file mode 100644 index 00000000000..d8c785a0986 --- /dev/null +++ b/gcc/ada/a-ticoau.adb @@ -0,0 +1,206 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUNTIME COMPONENTS -- +-- -- +-- A D A . T E X T _ I O . C O M P L E X _ A U X -- +-- -- +-- B o d y -- +-- -- +-- $Revision: 1.4 $ -- +-- -- +-- Copyright (C) 1992,1993,1994,1995,1996 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.Text_IO.Generic_Aux; use Ada.Text_IO.Generic_Aux; +with Ada.Text_IO.Float_Aux; + +with System.Img_Real; use System.Img_Real; + +package body Ada.Text_IO.Complex_Aux is + + package Aux renames Ada.Text_IO.Float_Aux; + + --------- + -- Get -- + --------- + + procedure Get + (File : in File_Type; + ItemR : out Long_Long_Float; + ItemI : out Long_Long_Float; + Width : Field) + is + Buf : String (1 .. Field'Last); + Stop : Integer := 0; + Ptr : aliased Integer; + Paren : Boolean := False; + + begin + -- General note for following code, exceptions from the calls to + -- Get for components of the complex value are propagated. + + if Width /= 0 then + Load_Width (File, Width, Buf, Stop); + Gets (Buf (1 .. Stop), ItemR, ItemI, Ptr); + + for J in Ptr + 1 .. Stop loop + if not Is_Blank (Buf (J)) then + raise Data_Error; + end if; + end loop; + + -- Case of width = 0 + + else + Load_Skip (File); + Ptr := 0; + Load (File, Buf, Ptr, '(', Paren); + Aux.Get (File, ItemR, 0); + Load_Skip (File); + Load (File, Buf, Ptr, ','); + Aux.Get (File, ItemI, 0); + + if Paren then + Load_Skip (File); + Load (File, Buf, Ptr, ')', Paren); + + if not Paren then + raise Data_Error; + end if; + end if; + end if; + end Get; + + ---------- + -- Gets -- + ---------- + + procedure Gets + (From : in String; + ItemR : out Long_Long_Float; + ItemI : out Long_Long_Float; + Last : out Positive) + is + Paren : Boolean; + Pos : Integer; + + begin + String_Skip (From, Pos); + + if From (Pos) = '(' then + Pos := Pos + 1; + Paren := True; + else + Paren := False; + end if; + + Aux.Gets (From (Pos .. From'Last), ItemR, Pos); + + String_Skip (From (Pos + 1 .. From'Last), Pos); + + if From (Pos) = ',' then + Pos := Pos + 1; + end if; + + Aux.Gets (From (Pos .. From'Last), ItemI, Pos); + + if Paren then + String_Skip (From (Pos + 1 .. From'Last), Pos); + + if From (Pos) /= ')' then + raise Data_Error; + end if; + end if; + + Last := Pos; + end Gets; + + --------- + -- Put -- + --------- + + procedure Put + (File : File_Type; + ItemR : Long_Long_Float; + ItemI : Long_Long_Float; + Fore : Field; + Aft : Field; + Exp : Field) + is + begin + Put (File, '('); + Aux.Put (File, ItemR, Fore, Aft, Exp); + Put (File, ','); + Aux.Put (File, ItemI, Fore, Aft, Exp); + Put (File, ')'); + end Put; + + ---------- + -- Puts -- + ---------- + + procedure Puts + (To : out String; + ItemR : Long_Long_Float; + ItemI : Long_Long_Float; + Aft : in Field; + Exp : in Field) + is + I_String : String (1 .. 3 * Field'Last); + R_String : String (1 .. 3 * Field'Last); + + Iptr : Natural; + Rptr : Natural; + + begin + -- Both parts are initially converted with a Fore of 0 + + Rptr := 0; + Set_Image_Real (ItemR, R_String, Rptr, 0, Aft, Exp); + Iptr := 0; + Set_Image_Real (ItemI, I_String, Iptr, 0, Aft, Exp); + + -- Check room for both parts plus parens plus comma (RM G.1.3(34)) + + if Rptr + Iptr + 3 > To'Length then + raise Layout_Error; + end if; + + -- If there is room, layout result according to (RM G.1.3(31-33)) + + To (To'First) := '('; + To (To'First + 1 .. To'First + Rptr) := R_String (1 .. Rptr); + To (To'First + Rptr + 1) := ','; + + To (To'Last) := ')'; + To (To'Last - Iptr .. To'Last - 1) := I_String (1 .. Iptr); + + for J in To'First + Rptr + 2 .. To'Last - Iptr - 1 loop + To (J) := ' '; + end loop; + + end Puts; + +end Ada.Text_IO.Complex_Aux; |