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/* Fast lookup table abstraction implemented as an Iteration Number Array
// $Id$
Copyright (C) 1989 Free Software Foundation, Inc.
written by Douglas C. Schmidt (schmidt@ics.uci.edu)
This file is part of GNU GPERF.
GNU GPERF is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
GNU GPERF is distributed in the hope that it will be useful,
but WITHOUT 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
along with GNU GPERF; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
#include "Bool_Array.h"
// Prints out debugging diagnostics.
Bool_Array::~Bool_Array (void)
{
if (option[DEBUG])
fprintf (stderr, "\ndumping boolean array information\n"
"size = %d\niteration number = %d\nend of array dump\n",
size, generation_number);
}
Bool_Array::Bool_Array (void)
: storage_array (0),
generation_number (0),
size (0)
{
}
void
Bool_Array::init (STORAGE_TYPE *buffer, STORAGE_TYPE s)
{
size = s;
generation_number = 1;
storage_array = buffer;
memset (storage_array, 0, s * sizeof *storage_array);
if (option[DEBUG])
fprintf (stderr, "\nbool array size = %d, total bytes = %d\n",
size, size * sizeof *storage_array);
}
int
Bool_Array::find (int index)
{
if (storage_array[index] == generation_number)
return 1;
else
{
storage_array[index] = generation_number;
return 0;
}
}
void
Bool_Array::reset (void)
{
if (++generation_number == 0)
{
if (option[DEBUG])
{
fprintf (stderr, "(re-initializing bool_array)...");
fflush (stderr);
}
generation_number = 1;
memset (storage_array, 0, size * sizeof *storage_array);
if (option[DEBUG])
{
fprintf (stderr, "done\n");
fflush (stderr);
}
}
}
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