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<p>Example for STL interoperability and set operations with iterators.</p><dl class="section see"><dt>See also</dt><dd><a class="el" href="classbm_1_1bvector.html#a71cabca9670588878381f72d16e059b8">bm::bvector<>::enumerator</a> </dd>
<dd>
bm::bvector<>::insert_iterator</dd></dl>
<div class="fragment"><div class="line"><span class="comment">/*</span></div>
<div class="line"><span class="comment">Copyright(c) 2002-2017 Anatoliy Kuznetsov(anatoliy_kuznetsov at yahoo.com)</span></div>
<div class="line"><span class="comment"></span> </div>
<div class="line"><span class="comment">Licensed under the Apache License, Version 2.0 (the "License");</span></div>
<div class="line"><span class="comment">you may not use this file except in compliance with the License.</span></div>
<div class="line"><span class="comment">You may obtain a copy of the License at</span></div>
<div class="line"><span class="comment"></span> </div>
<div class="line"><span class="comment"> http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><span class="comment"></span> </div>
<div class="line"><span class="comment">Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><span class="comment">distributed under the License is distributed on an "AS IS" BASIS,</span></div>
<div class="line"><span class="comment">WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><span class="comment">See the License for the specific language governing permissions and</span></div>
<div class="line"><span class="comment">limitations under the License.</span></div>
<div class="line"><span class="comment"></span> </div>
<div class="line"><span class="comment">For more information please visit: http://bitmagic.io</span></div>
<div class="line"><span class="comment">*/</span></div>
<div class="line"><span class="comment"></span> </div>
<div class="line"><span class="comment">/** \example sample8.cpp</span></div>
<div class="line"><span class="comment"></span> </div>
<div class="line"><span class="comment"> Example for STL interoperability and set operations with iterators.</span></div>
<div class="line"><span class="comment"> </span></div>
<div class="line"><span class="comment"> \sa bm::bvector<>::enumerator </span></div>
<div class="line"><span class="comment"> \sa bm::bvector<>::insert_iterator</span></div>
<div class="line"><span class="comment">*/</span></div>
<div class="line"><span class="comment"></span> </div>
<div class="line"><span class="comment">/*! \file sample8.cpp</span></div>
<div class="line"><span class="comment"> \brief Example: bvector<> - STL interoperability</span></div>
<div class="line"><span class="comment">*/</span></div>
<div class="line"> </div>
<div class="line"><span class="preprocessor">#include <iostream></span></div>
<div class="line"><span class="preprocessor">#include <algorithm></span></div>
<div class="line"><span class="preprocessor">#include <vector></span></div>
<div class="line"><span class="preprocessor">#include <list></span></div>
<div class="line"> </div>
<div class="line"><span class="keyword">using</span> std::vector;</div>
<div class="line"><span class="keyword">using</span> std::list;</div>
<div class="line"> </div>
<div class="line"><span class="comment">// This example requires STL compatibility</span></div>
<div class="line"><span class="preprocessor">#ifdef BM_NO_STL</span></div>
<div class="line"><span class="preprocessor"># undef BM_NO_STL</span></div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"> </div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="bm_8h.html">bm.h</a>"</span></div>
<div class="line"> </div>
<div class="line"><span class="keyword">using namespace </span>std;</div>
<div class="line"> </div>
<div class="line"><span class="keyword">inline</span></div>
<div class="line"><span class="keywordtype">void</span> <a name="a0"></a><a class="code" href="sample8_8cpp.html#a1a9beb932506d3b6316514b927d50cb8">Print</a>(<a class="code" href="classbm_1_1bvector.html#a405dd9ed048c935c84a5086ec8ba3649">bm::bvector<>::size_type</a> n)</div>
<div class="line">{</div>
<div class="line"> cout << n << endl;;</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="comment">// Utility template function used to print container</span></div>
<div class="line"><span class="keyword">template</span><<span class="keyword">class</span> T> <span class="keywordtype">void</span> <a name="a1"></a><a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(T first, T last)</div>
<div class="line">{</div>
<div class="line"> <span class="keywordflow">if</span> (first == last)</div>
<div class="line"> cout << <span class="stringliteral">"<EMPTY SET>"</span>;</div>
<div class="line"> <span class="keywordflow">else</span></div>
<div class="line"> <span class="keywordflow">for</span>(;first != last; ++first)</div>
<div class="line"> cout << *first << <span class="stringliteral">";"</span>;</div>
<div class="line"> cout << endl;</div>
<div class="line">}</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">int</span> <a name="a2"></a><a class="code" href="sample8_8cpp.html#a840291bc02cba5474a4cb46a9b9566fe">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> <span class="keyword">typedef</span> <a class="code" href="classbm_1_1bvector.html#a405dd9ed048c935c84a5086ec8ba3649">bm::bvector<>::size_type</a> <a name="a3"></a><a class="code" href="sample12_8cpp.html#aea59d980189c67689688d065772264ce">bm_size_type</a>;</div>
<div class="line"> <span class="keywordflow">try</span></div>
<div class="line"> {</div>
<div class="line"> <a name="_a4"></a><a class="code" href="classbm_1_1bvector.html">bm::bvector<></a> bv;</div>
<div class="line"> </div>
<div class="line"> bv[10] = <span class="keyword">true</span>;</div>
<div class="line"> bv[100] = <span class="keyword">true</span>;</div>
<div class="line"> bv[10000] = <span class="keyword">true</span>;</div>
<div class="line"> </div>
<div class="line"> cout << <span class="stringliteral">"Source set:"</span>;</div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(bv.<a name="a5"></a><a class="code" href="classbm_1_1bvector.html#a86b939f3aed555dc073e8c26e9efea71">first</a>(), bv.<a name="a6"></a><a class="code" href="classbm_1_1bvector.html#a937cd13482984f234a5d94cc638c22b5">end</a>());</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// copy all bitset information into STL vector using copy algorithm</span></div>
<div class="line"> {</div>
<div class="line"> vector<bm_size_type> vect;</div>
<div class="line"> vect.resize(bv.<a name="a7"></a><a class="code" href="classbm_1_1bvector.html#a3009ba9b116f13f4933a48641f3a695d">count</a>());</div>
<div class="line"> std::copy(bv.<a class="code" href="classbm_1_1bvector.html#a86b939f3aed555dc073e8c26e9efea71">first</a>(), bv.<a class="code" href="classbm_1_1bvector.html#a937cd13482984f234a5d94cc638c22b5">end</a>(), vect.begin());</div>
<div class="line"> cout << <span class="stringliteral">"Vector:"</span>;</div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(vect.begin(), vect.end());</div>
<div class="line"> }</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// doing the same with the help of back_inserter</span></div>
<div class="line"> </div>
<div class="line"> {</div>
<div class="line"> list<bm_size_type> lst;</div>
<div class="line"> std::copy(bv.<a class="code" href="classbm_1_1bvector.html#a86b939f3aed555dc073e8c26e9efea71">first</a>(), bv.<a class="code" href="classbm_1_1bvector.html#a937cd13482984f234a5d94cc638c22b5">end</a>(), std::back_inserter(lst));</div>
<div class="line"> cout << <span class="stringliteral">"List:"</span>;</div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(lst.begin(), lst.end());</div>
<div class="line"> }</div>
<div class="line"> </div>
<div class="line"> {</div>
<div class="line"> vector<bm_size_type> vect;</div>
<div class="line"> vector<bm_size_type> res1, res2, res3;</div>
<div class="line"> </div>
<div class="line"> vect.push_back(100);</div>
<div class="line"> vect.push_back(15);</div>
<div class="line"> vect.push_back(150);</div>
<div class="line"> </div>
<div class="line"> cout << <span class="stringliteral">"Argument vector for set operations:"</span>;</div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(vect.begin(), vect.end());</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// set should be ordered by < to make set algorithms possible</span></div>
<div class="line"> std::sort(vect.begin(), vect.end());</div>
<div class="line"> cout << endl;</div>
<div class="line"> </div>
<div class="line"> std::set_union(bv.<a class="code" href="classbm_1_1bvector.html#a86b939f3aed555dc073e8c26e9efea71">first</a>(), bv.<a class="code" href="classbm_1_1bvector.html#a937cd13482984f234a5d94cc638c22b5">end</a>(),</div>
<div class="line"> vect.begin(), vect.end(),</div>
<div class="line"> std::back_inserter(res1)); <span class="comment">//10;15;100;150;10000</span></div>
<div class="line"> cout << <span class="stringliteral">"Set union:"</span> << endl;</div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(res1.begin(), res1.end());</div>
<div class="line"> </div>
<div class="line"> std::set_intersection(bv.<a class="code" href="classbm_1_1bvector.html#a86b939f3aed555dc073e8c26e9efea71">first</a>(), bv.<a class="code" href="classbm_1_1bvector.html#a937cd13482984f234a5d94cc638c22b5">end</a>(),</div>
<div class="line"> vect.begin(), vect.end(),</div>
<div class="line"> std::back_inserter(res2)); <span class="comment">// 100</span></div>
<div class="line"> cout << <span class="stringliteral">"Set intersection:"</span> << endl;</div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(res2.begin(), res2.end());</div>
<div class="line"> </div>
<div class="line"> vector<bm_size_type>::const_iterator it1 = vect.begin();</div>
<div class="line"> vector<bm_size_type>::const_iterator it2 = vect.end();</div>
<div class="line"> <a name="_a8"></a><a class="code" href="classbm_1_1bvector_1_1enumerator.html">bm::bvector<>::enumerator</a> en = bv.<a class="code" href="classbm_1_1bvector.html#a86b939f3aed555dc073e8c26e9efea71">first</a>();</div>
<div class="line"> <a class="code" href="classbm_1_1bvector_1_1enumerator.html">bm::bvector<>::enumerator</a> en2= bv.<a class="code" href="classbm_1_1bvector.html#a937cd13482984f234a5d94cc638c22b5">end</a>();</div>
<div class="line"> </div>
<div class="line"> std::set_difference(en, en2,</div>
<div class="line"> it1, it2,</div>
<div class="line"> std::back_inserter(res3)); <span class="comment">// 10;10000</span></div>
<div class="line"> </div>
<div class="line"> cout << <span class="stringliteral">"Set diff:"</span> << endl;</div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(res3.begin(), res3.end());</div>
<div class="line"> </div>
<div class="line"> }</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// Using bvector<>::insert_iterator to set bits</span></div>
<div class="line"> {</div>
<div class="line"> <a class="code" href="classbm_1_1bvector.html">bm::bvector<></a> bv1;</div>
<div class="line"> std::vector<bm_size_type> vect;</div>
<div class="line"> </div>
<div class="line"> vect.push_back(300);</div>
<div class="line"> vect.push_back(200);</div>
<div class="line"> vect.push_back(275);</div>
<div class="line"> vect.push_back(200);</div>
<div class="line"> </div>
<div class="line"> cout << endl << <span class="stringliteral">"Source vector:"</span>;</div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(vect.begin(), vect.end()); <span class="comment">// 300;200;275;200;</span></div>
<div class="line"> </div>
<div class="line"> <span class="comment">// The "side effect" of this operation is that we sorted</span></div>
<div class="line"> <span class="comment">// the input sequence and eliminated duplicates</span></div>
<div class="line"> </div>
<div class="line"> std::copy(vect.begin(), vect.end(), bv1.<a name="a9"></a><a class="code" href="classbm_1_1bvector.html#a6fbb5c0bd6f4b05712ee7701dcd1fe1e">inserter</a>());</div>
<div class="line"> cout << <span class="stringliteral">"Bitset:"</span>;</div>
<div class="line"> </div>
<div class="line"> <a class="code" href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a>(bv1.<a class="code" href="classbm_1_1bvector.html#a86b939f3aed555dc073e8c26e9efea71">first</a>(), bv1.<a class="code" href="classbm_1_1bvector.html#a937cd13482984f234a5d94cc638c22b5">end</a>()); <span class="comment">// 200;275;300</span></div>
<div class="line"> }</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">catch</span>(std::exception& ex)</div>
<div class="line"> {</div>
<div class="line"> std::cerr << ex.what() << std::endl;</div>
<div class="line"> <span class="keywordflow">return</span> 1;</div>
<div class="line"> }</div>
<div class="line"> </div>
<div class="line"> </div>
<div class="line"> <span class="keywordflow">return</span> 0;</div>
<div class="line">}</div>
<div class="line"> </div>
</div><!-- fragment --> </div><!-- contents -->
<div class="ttc" id="asample8_8cpp_html_a1a9beb932506d3b6316514b927d50cb8"><div class="ttname"><a href="sample8_8cpp.html#a1a9beb932506d3b6316514b927d50cb8">Print</a></div><div class="ttdeci">void Print(bm::bvector<>::size_type n)</div><div class="ttdef"><b>Definition:</b> <a href="sample8_8cpp_source.html#l00049">sample8.cpp:49</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_1_1enumerator_html"><div class="ttname"><a href="classbm_1_1bvector_1_1enumerator.html">bm::bvector::enumerator</a></div><div class="ttdoc">Constant iterator designed to enumerate "ON" bits.</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l00599">bm.h:599</a></div></div>
<div class="ttc" id="asample12_8cpp_html_aea59d980189c67689688d065772264ce"><div class="ttname"><a href="sample12_8cpp.html#aea59d980189c67689688d065772264ce">bm_size_type</a></div><div class="ttdeci">bm::bvector ::size_type bm_size_type</div><div class="ttdef"><b>Definition:</b> <a href="sample12_8cpp_source.html#l00053">sample12.cpp:53</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html"><div class="ttname"><a href="classbm_1_1bvector.html">bm::bvector<></a></div></div>
<div class="ttc" id="asample8_8cpp_html_a15ab1ec24c164cc91abcefb45a316cec"><div class="ttname"><a href="sample8_8cpp.html#a15ab1ec24c164cc91abcefb45a316cec">PrintContainer</a></div><div class="ttdeci">void PrintContainer(T first, T last)</div><div class="ttdef"><b>Definition:</b> <a href="sample8_8cpp_source.html#l00055">sample8.cpp:55</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a3009ba9b116f13f4933a48641f3a695d"><div class="ttname"><a href="classbm_1_1bvector.html#a3009ba9b116f13f4933a48641f3a695d">bm::bvector::count</a></div><div class="ttdeci">size_type count() const BMNOEXCEPT</div><div class="ttdoc">population cout (count of ON bits)</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l02194">bm.h:2194</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a6fbb5c0bd6f4b05712ee7701dcd1fe1e"><div class="ttname"><a href="classbm_1_1bvector.html#a6fbb5c0bd6f4b05712ee7701dcd1fe1e">bm::bvector::inserter</a></div><div class="ttdeci">insert_iterator inserter()</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l01245">bm.h:1245</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a937cd13482984f234a5d94cc638c22b5"><div class="ttname"><a href="classbm_1_1bvector.html#a937cd13482984f234a5d94cc638c22b5">bm::bvector::end</a></div><div class="ttdeci">enumerator end() const</div><div class="ttdoc">Returns enumerator pointing on the next bit after the last.</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l01776">bm.h:1776</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a86b939f3aed555dc073e8c26e9efea71"><div class="ttname"><a href="classbm_1_1bvector.html#a86b939f3aed555dc073e8c26e9efea71">bm::bvector::first</a></div><div class="ttdeci">enumerator first() const</div><div class="ttdoc">Returns enumerator pointing on the first non-zero bit.</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l01770">bm.h:1770</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a405dd9ed048c935c84a5086ec8ba3649"><div class="ttname"><a href="classbm_1_1bvector.html#a405dd9ed048c935c84a5086ec8ba3649">bm::bvector::size_type</a></div><div class="ttdeci">bm::id_t size_type</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l00117">bm.h:117</a></div></div>
<div class="ttc" id="abm_8h_html"><div class="ttname"><a href="bm_8h.html">bm.h</a></div><div class="ttdoc">Compressed bit-vector bvector<> container, set algebraic methods, traversal iterators.</div></div>
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