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author | Matthew Heaney <heaney@adacore.com> | 2006-02-15 10:32:52 +0100 |
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committer | Arnaud Charlet <charlet@gcc.gnu.org> | 2006-02-15 10:32:52 +0100 |
commit | ffabcde5e102cd7cc8a283ddc89861a727226913 (patch) | |
tree | 39a55d293e0dcbbc8992be624d0eb85bc7be0307 /gcc/ada/a-stboha.adb | |
parent | 738819cdce8e966e04a3e83d305db2cfa9bdaa75 (diff) | |
download | gcc-ffabcde5e102cd7cc8a283ddc89861a727226913.zip gcc-ffabcde5e102cd7cc8a283ddc89861a727226913.tar.gz gcc-ffabcde5e102cd7cc8a283ddc89861a727226913.tar.bz2 |
a-rbtgso.adb, [...]: All explicit raise statements now include an exception message.
2006-02-13 Matthew Heaney <heaney@adacore.com>
* a-rbtgso.adb, a-crbtgo.adb, a-crbtgk.adb, a-coorse.adb,
a-cohama.adb, a-ciorse.adb, a-cihama.adb, a-cihase.adb,
a-cohase.adb: All explicit raise statements now include an exception
message.
* a-ciormu.ads, a-ciormu.adb, a-coormu.ads, a-coormu.adb
(Update_Element_Preserving_Key): renamed op to just Update_Element.
Explicit raise statements now include an exception message
* a-cihase.ads, a-cohase.ads: Removed comment.
* a-stboha.ads, a-stboha.adb, a-stfiha.ads, a-envvar.adb,
a-envvar.ads, a-swbwha.ads, a-swbwha.adb, a-swfwha.ads, a-szbzha.ads,
a-szbzha.adb, a-szfzha.ads: New files.
From-SVN: r111035
Diffstat (limited to 'gcc/ada/a-stboha.adb')
-rw-r--r-- | gcc/ada/a-stboha.adb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/gcc/ada/a-stboha.adb b/gcc/ada/a-stboha.adb new file mode 100644 index 0000000..ba5ce06 --- /dev/null +++ b/gcc/ada/a-stboha.adb @@ -0,0 +1,57 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT LIBRARY COMPONENTS -- +-- -- +-- A D A . S T R I N G S . B O U N D E D . H A S H -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2004-2006 Free Software Foundation, Inc. -- +-- -- +-- This specification is derived from the Ada Reference Manual for use with -- +-- GNAT. The copyright notice above, and the license provisions that follow -- +-- apply solely to the contents of the part following the private keyword. -- +-- -- +-- 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, 51 Franklin Street, Fifth Floor, -- +-- Boston, MA 02110-1301, 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. -- +-- -- +-- This unit was originally developed by Matthew J Heaney. -- +------------------------------------------------------------------------------ + +-- Note: source of this algorithm: GNAT.HTable.Hash (g-htable.adb) + +function Ada.Strings.Bounded.Hash (Key : Bounded.Bounded_String) + return Containers.Hash_Type +is + use Ada.Containers; + + function Rotate_Left + (Value : Hash_Type; + Amount : Natural) return Hash_Type; + pragma Import (Intrinsic, Rotate_Left); + + Tmp : Hash_Type; + +begin + Tmp := 0; + for J in 1 .. Bounded.Length (Key) loop + Tmp := Rotate_Left (Tmp, 3) + Character'Pos (Bounded.Element (Key, J)); + end loop; + + return Tmp; +end Ada.Strings.Bounded.Hash; |