From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/ada/s-wwdwch.adb | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 130 insertions(+) create mode 100644 gcc/ada/s-wwdwch.adb (limited to 'gcc/ada/s-wwdwch.adb') diff --git a/gcc/ada/s-wwdwch.adb b/gcc/ada/s-wwdwch.adb new file mode 100644 index 000000000..001680ef5 --- /dev/null +++ b/gcc/ada/s-wwdwch.adb @@ -0,0 +1,130 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . W W D _ W C H A R -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2009, 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 3, 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. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- a copy of the GCC Runtime Library Exception along with this program; -- +-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- +-- . -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +with Interfaces; use Interfaces; + +with System.WWd_Char; + +package body System.Wwd_WChar is + + ------------------------------------ + -- Wide_Wide_Width_Wide_Character -- + ------------------------------------ + + -- This is the case where we are talking about the Wide_Wide_Image of + -- a Wide_Character, which is always the same character sequence as the + -- Wide_Image of the same Wide_Character. + + function Wide_Wide_Width_Wide_Character + (Lo, Hi : Wide_Character) return Natural + is + begin + return Wide_Width_Wide_Character (Lo, Hi); + end Wide_Wide_Width_Wide_Character; + + ------------------------------------ + -- Wide_Wide_Width_Wide_Wide_Char -- + ------------------------------------ + + function Wide_Wide_Width_Wide_Wide_Char + (Lo, Hi : Wide_Wide_Character) return Natural + is + LV : constant Unsigned_32 := Wide_Wide_Character'Pos (Lo); + HV : constant Unsigned_32 := Wide_Wide_Character'Pos (Hi); + + begin + -- Return zero if empty range + + if LV > HV then + return 0; + + -- Return max value (12) for wide character (Hex_hhhhhhhh) + + elsif HV > 255 then + return 12; + + -- If any characters in normal character range, then use normal + -- Wide_Wide_Width attribute on this range to find out a starting point. + -- Otherwise start with zero. + + else + return + System.WWd_Char.Wide_Wide_Width_Character + (Lo => Character'Val (LV), + Hi => Character'Val (Unsigned_32'Min (255, HV))); + end if; + end Wide_Wide_Width_Wide_Wide_Char; + + ------------------------------- + -- Wide_Width_Wide_Character -- + ------------------------------- + + function Wide_Width_Wide_Character + (Lo, Hi : Wide_Character) return Natural + is + LV : constant Unsigned_32 := Wide_Character'Pos (Lo); + HV : constant Unsigned_32 := Wide_Character'Pos (Hi); + + begin + -- Return zero if empty range + + if LV > HV then + return 0; + + -- Return max value (12) for wide character (Hex_hhhhhhhh) + + elsif HV > 255 then + return 12; + + -- If any characters in normal character range, then use normal + -- Wide_Wide_Width attribute on this range to find out a starting point. + -- Otherwise start with zero. + + else + return + System.WWd_Char.Wide_Width_Character + (Lo => Character'Val (LV), + Hi => Character'Val (Unsigned_32'Min (255, HV))); + end if; + end Wide_Width_Wide_Character; + + ------------------------------------ + -- Wide_Width_Wide_Wide_Character -- + ------------------------------------ + + function Wide_Width_Wide_Wide_Character + (Lo, Hi : Wide_Wide_Character) return Natural + is + begin + return Wide_Wide_Width_Wide_Wide_Char (Lo, Hi); + end Wide_Width_Wide_Wide_Character; + +end System.Wwd_WChar; -- cgit v1.2.3