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/* ANTLR Translator Generator
* Project led by Terence Parr at http://www.jGuru.com
* Software rights: http://www.antlr.org/license.html
*
* $Id$
*/
#include "antlr/BitSet.hpp"
#include <string>
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif
BitSet::BitSet(unsigned int nbits)
: storage(nbits)
{
for (unsigned int i = 0; i < nbits ; i++ )
storage[i] = false;
}
BitSet::BitSet( const unsigned long* bits_, unsigned int nlongs )
: storage(nlongs*32)
{
for ( unsigned int i = 0 ; i < (nlongs * 32); i++)
storage[i] = (bits_[i>>5] & (1UL << (i&31))) ? true : false;
}
BitSet::~BitSet()
{
}
void BitSet::add(unsigned int el)
{
if( el >= storage.size() )
storage.resize( el+1, false );
storage[el] = true;
}
bool BitSet::member(unsigned int el) const
{
if ( el >= storage.size())
return false;
return storage[el];
}
ANTLR_USE_NAMESPACE(std)vector<unsigned int> BitSet::toArray() const
{
ANTLR_USE_NAMESPACE(std)vector<unsigned int> elems;
for (unsigned int i = 0; i < storage.size(); i++)
{
if (storage[i])
elems.push_back(i);
}
return elems;
}
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif
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