File : g-bubsor.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- G N A T . B U B B L E _ S O R T _ A --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 1995-2010, AdaCore --
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 -- --
19 -- --
20 -- --
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 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 package body GNAT.Bubble_Sort is
33
34 ----------
35 -- Sort --
36 ----------
37
38 procedure Sort (N : Natural; Xchg : Xchg_Procedure; Lt : Lt_Function) is
39 Switched : Boolean;
40
41 begin
42 loop
43 Switched := False;
44
45 for J in 1 .. N - 1 loop
46 if Lt (J + 1, J) then
47 Xchg (J, J + 1);
48 Switched := True;
49 end if;
50 end loop;
51
52 exit when not Switched;
53 end loop;
54 end Sort;
55
56 end GNAT.Bubble_Sort;