BitMagic-C++
sample2.cpp

Example demonstrates using set operations AND, OR, XOR, etc.

bvsetalgebra.cpp
/*
Copyright(c) 2002-2017 Anatoliy Kuznetsov(anatoliy_kuznetsov at yahoo.com)
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Unless required by applicable law or agreed to in writing, software
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
*/
/** \example sample2.cpp
Example demonstrates using set operations AND, OR, XOR, etc.
\sa bvsetalgebra.cpp
*/
/*! \file sample2.cpp
\brief Example: bvector<> set algebra operations AND, OR, XOR, etc.
*/
#include <iostream>
#include "bm.h"
#include "bmundef.h" /* clear the pre-proc defines from BM */
using namespace std;
static
{
do
{
cout << value;
value = bv.get_next(value);
if (value)
{
cout << ",";
}
else
{
break;
}
} while(1);
cout << endl;
}
int main(void)
{
try
{
bv1.set(10);
bv1.set(100);
bv1.set(1000000);
bv2.set(10);
bv2.set(100);
// Logical AND operation on bv2 (bv1 is the argument)
// bv2 = bv2 AND bv1
bv3 = bv1 & bv2;
bv2 &= bv1; // You also can use: bv2.bit_and(bv1);
// bv2 = bv2 OR bv1
bv3 = bv1 | bv2;
bv2 |= bv1; // You can also use: bv2.bit_or(bv1);
bv1.set(1000000, false);
// bv2 = bv2 SUB bv1
bv3 = bv2 - bv1;
bv2 -= bv1; // You can also use: bv2.bit_sub(bv1);
// bv2 XOR bv1
bv3 = bv2 ^ bv1;
// product of XOR is a mismatch vector (definition of XOR)
//
{
bool f = bv3.find(pos);
if (f)
{
cout << "XOR mismatch position = " << pos << endl;
}
// if we need to find only first mismatch we don't need a full
// XOR product, we can use bvector<>::find_first_mismatch()
//
f = bv2.find_first_mismatch(bv1, pos);
if (f)
{
cout << "search mismatch position = " << pos << endl;
}
}
bv2 ^= bv1; // You can also use: bv2.bit_xor(bv1);
// For lexicographical comparison there is set of overloaded
if (bv2 == bv3)
{
cerr << "Equivalent. Comparison result = "
<< bv2.compare(bv3) << endl;
}
else
{
cout << "Error." << endl;
return 1;
}
}
catch(std::exception& ex)
{
std::cerr << ex.what() << std::endl;
}
return 0;
}