OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [a-coprnu.adb] - Blame information for rev 706

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 706 jeremybenn
------------------------------------------------------------------------------
2
--                                                                          --
3
--                         GNAT LIBRARY COMPONENTS                          --
4
--                                                                          --
5
--         A D A . C O N T A I N E R S . P R I M E _ N U M B E R S          --
6
--                                                                          --
7
--                                 B o d y                                  --
8
--                                                                          --
9
--          Copyright (C) 2004-2009, Free Software Foundation, Inc.         --
10
--                                                                          --
11
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12
-- terms of the  GNU General Public License as published  by the Free Soft- --
13
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16
-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
17
--                                                                          --
18
-- As a special exception under Section 7 of GPL version 3, you are granted --
19
-- additional permissions described in the GCC Runtime Library Exception,   --
20
-- version 3.1, as published by the Free Software Foundation.               --
21
--                                                                          --
22
-- You should have received a copy of the GNU General Public License and    --
23
-- a copy of the GCC Runtime Library Exception along with this program;     --
24
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25
-- <http://www.gnu.org/licenses/>.                                          --
26
--                                                                          --
27
-- This unit was originally developed by Matthew J Heaney.                  --
28
------------------------------------------------------------------------------
29
 
30
package body Ada.Containers.Prime_Numbers is
31
 
32
   --------------
33
   -- To_Prime --
34
   --------------
35
 
36
   function To_Prime (Length : Count_Type) return Hash_Type is
37
      I, J, K : Integer'Base;
38
      Index   : Integer'Base;
39
 
40
   begin
41
      I := Primes'Last - Primes'First;
42
      Index := Primes'First;
43
      while I > 0 loop
44
         J := I / 2;
45
         K := Index + J;
46
 
47
         if Primes (K) < Hash_Type (Length) then
48
            Index := K + 1;
49
            I := I - J - 1;
50
         else
51
            I := J;
52
         end if;
53
      end loop;
54
 
55
      return Primes (Index);
56
   end To_Prime;
57
 
58
end Ada.Containers.Prime_Numbers;

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.