bool-array.icc revision 58552 
1/* Inline Functions for bool-array.{h,cc}.
2
3   Copyright (C) 1989-1998 Free Software Foundation, Inc.
4   written by Douglas C. Schmidt (schmidt@ics.uci.edu)
5
6This file is part of GNU GPERF.
7
8GNU GPERF is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 1, or (at your option)
11any later version.
12
13GNU GPERF is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with GNU GPERF; see the file COPYING.  If not, write to the Free
20Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22// This needs:
23//#include <stdio.h>
24//#include <string.h>
25//#include "options.h"
26//#include "trace.h"
27
28INLINE
29Bool_Array::Bool_Array (void)
30{
31  T (Trace t ("Bool_Array::Bool_Array");)
32  storage_array = 0;
33  iteration_number = size = 0;
34}
35
36INLINE void
37Bool_Array::init (STORAGE_TYPE *buffer, unsigned int s)
38{
39  T (Trace t ("Bool_Array::init");)
40  size             = s;
41  iteration_number = 1;
42  storage_array    = buffer;
43  memset (storage_array, 0, s * sizeof (*storage_array));
44  if (option[DEBUG])
45    fprintf (stderr, "\nbool array size = %d, total bytes = %d\n",
46             size, (unsigned int) (size * sizeof (*storage_array)));
47}
48
49INLINE int
50Bool_Array::find (int index)
51{
52  T (Trace t ("Bool_Array::find");)
53  if (storage_array[index] == iteration_number)
54    return 1;
55  else
56    {
57      storage_array[index] = iteration_number;
58      return 0;
59    }
60}
61
62INLINE void
63Bool_Array::reset (void)
64{
65  T (Trace t ("Bool_Array::reset");)
66  /* If we wrap around it's time to zero things out again!  However, this only
67     occurs once about every 2^31 or 2^15 iterations, so it should probably
68     never happen! */
69
70  if (++iteration_number == 0)
71    {
72      if (option[DEBUG])
73        {
74          fprintf (stderr, "(re-initializing bool_array)...");
75          fflush (stderr);
76        }
77      iteration_number = 1;
78      memset (storage_array, 0, size * sizeof (*storage_array));
79      if (option[DEBUG])
80        {
81          fprintf (stderr, "done\n");
82          fflush (stderr);
83        }
84    }
85}
86