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// List of sets -*- c++ -*-
#ifdef __GNUC__
# pragma implementation
#endif // __GNUC__
#include "SetList.h"
#include "BitVector.h"
#include <string.h>
/** @file SetList.C
* A collection of sets of numbers
*/
/* Copyright 2000-2002 Marko Mkel (msmakela@tcs.hut.fi).
Copyright 2000 Timo Latvala (timo@tcs.hut.fi).
This file is part of MARIA, a reachability analyzer and model checker
for high-level Petri nets.
MARIA 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 2, or (at your option)
any later version.
MARIA 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.
The GNU General Public License is often shipped with GNU software, and
is generally kept in a file called COPYING or LICENSE. If you do not
have a copy of the license, write to the Free Software Foundation,
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
SetList::SetList (unsigned numSets) :
myNumSets (numSets), myAllocatedSets (0), mySets (0)
{
for (myAllocatedSets = 1; myAllocatedSets < numSets; myAllocatedSets <<= 1);
mySets = new unsigned*[myAllocatedSets];
memset (mySets, 0, myAllocatedSets * sizeof *mySets);
}
SetList::~SetList ()
{
for (unsigned i = myNumSets; i--; )
delete[] mySets[i];
delete[] mySets;
}
void
SetList::assign (unsigned i, unsigned* array)
{
assert (i < myNumSets && array && *array);
if (!mySets[i])
mySets[i] = array;
else {
unsigned* sets = new unsigned[*mySets[i] + *array + 1];
memcpy (sets, mySets[i], (*mySets[i] + 1) * sizeof *sets);
memcpy (sets + *sets + 1, array + 1, *array * sizeof *sets);
*sets += *array;
delete[] mySets[i];
delete[] array;
mySets[i] = sets;
}
}
void
SetList::assign (unsigned i,
const class BitVector& bv,
unsigned offset,
bool complement)
{
assert(i < myNumSets);
if (!bv.getSize())
return;
unsigned numTrue = 0, b;
for (b = bv.getSize(); b--; )
if(bv[b] != complement) numTrue++;
if (!numTrue)
return;
unsigned* s = new unsigned[numTrue + 1];
*s = numTrue;
for (b = bv.getSize();; )
if(bv[--b] != complement)
if ((s[numTrue] = b + offset), !--numTrue)
break;
assign (i, s);
}
void
SetList::copy (unsigned i, const unsigned* array)
{
assert (i < myNumSets && array && *array);
if (!mySets[i]) {
mySets[i] = new unsigned[*array + 1];
memcpy (mySets[i], array, (*array + 1) * sizeof *array);
}
else {
unsigned* sets = new unsigned[*mySets[i] + *array + 1];
memcpy (sets, mySets[i], (*mySets[i] + 1) * sizeof *sets);
memcpy (sets + *sets + 1, array + 1, *array * sizeof *sets);
*sets += *array;
delete[] mySets[i];
mySets[i] = sets;
}
}
void
SetList::grow (unsigned numSets)
{
assert (numSets > myNumSets);
if (numSets <= myAllocatedSets) {
memset (mySets + myNumSets, 0, (numSets - myNumSets) * sizeof *mySets);
myNumSets = numSets;
return;
}
for (; myAllocatedSets < numSets; myAllocatedSets <<= 1);
unsigned** sets = new unsigned*[myAllocatedSets];
memcpy (sets, mySets, myNumSets * sizeof *sets);
memset (sets + myNumSets, 0, (numSets - myNumSets) * sizeof *sets);
delete[] mySets;
mySets = sets;
myNumSets = numSets;
}
void
SetList::shrink (unsigned numSets)
{
assert (numSets <= myNumSets);
while (myNumSets > numSets)
delete[] mySets[--myNumSets];
}
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