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<div class="title">svsample02.cpp</div> </div>
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<p>Example of how to serialize bm::sparse_vector<> template class</p><dl class="section see"><dt>See also</dt><dd><a class="el" href="classbm_1_1sparse__vector.html" title="sparse vector with runtime compression using bit transposition method">bm::sparse_vector</a> </dd>
<dd>
<a class="el" href="classbm_1_1sparse__vector.html#a2f8aadebd1cfecd8e70fc771dbbd748d" title="push value back into vector">bm::sparse_vector<>::push_back</a> </dd>
<dd>
<a class="el" href="classbm_1_1sparse__vector.html#a27be5c080f0bc67f8e886b7feb57e28e" title="check if another sparse vector has the same content and size">bm::sparse_vector<>::equal</a> </dd>
<dd>
<a class="el" href="group__svserial.html#ga358d9cdc693676c83730f9fdb0cf922e" title="Serialize sparse vector into a memory buffer(s) structure.">bm::sparse_vector_serialize</a> </dd>
<dd>
<a class="el" href="group__svserial.html#ga9a06b8c24ce8cd1ec82f598b80149178" title="Deserialize sparse vector.">bm::sparse_vector_deserialize</a></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 svsample02.cpp</span></div>
<div class="line"><span class="comment"> Example of how to serialize bm::sparse_vector<> template class</span></div>
<div class="line"><span class="comment"> </span></div>
<div class="line"><span class="comment"> \sa bm::sparse_vector</span></div>
<div class="line"><span class="comment"> \sa bm::sparse_vector<>::push_back</span></div>
<div class="line"><span class="comment"> \sa bm::sparse_vector<>::equal</span></div>
<div class="line"><span class="comment"> \sa bm::sparse_vector_serialize</span></div>
<div class="line"><span class="comment"> \sa bm::sparse_vector_deserialize</span></div>
<div class="line"><span class="comment"> </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 svsample02.cpp</span></div>
<div class="line"><span class="comment"> \brief Example: sparse_vector<> serialization</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 <vector></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"><span class="preprocessor">#include "<a class="code" href="bmsparsevec_8h.html">bmsparsevec.h</a>"</span></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="bmsparsevec__serial_8h.html">bmsparsevec_serial.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">typedef</span> <a name="_a0"></a><a class="code" href="classbm_1_1sparse__vector.html">bm::sparse_vector<unsigned, bm::bvector<></a> > <a name="a1"></a><a class="code" href="svsample02_8cpp.html#ae1c8c7a3dde49a1c340207dee7982f37">svector</a>;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">int</span> <a name="a2"></a><a class="code" href="svsample02_8cpp.html#a840291bc02cba5474a4cb46a9b9566fe">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> <span class="keywordflow">try</span></div>
<div class="line"> {</div>
<div class="line"> <a name="_a3"></a><a class="code" href="classbm_1_1sparse__vector.html">svector</a> sv1;</div>
<div class="line"> <a class="code" href="classbm_1_1sparse__vector.html">svector</a> sv2;</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// temp buffer to avoid unnecessary re-allocations</span></div>
<div class="line"> <a name="a4"></a><a class="code" href="bm_8h.html#ad9736d9521d713fa5d48859aa720bfdd">BM_DECLARE_TEMP_BLOCK</a>(tb)</div>
<div class="line"> </div>
<div class="line"> </div>
<div class="line"> <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < 128000; ++i)</div>
<div class="line"> {</div>
<div class="line"> sv1.<a name="a5"></a><a class="code" href="classbm_1_1sparse__vector.html#a2f8aadebd1cfecd8e70fc771dbbd748d">push_back</a>(8);</div>
<div class="line"> }</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// optimize memory allocation of sparse vector</span></div>
<div class="line"> sv1.<a name="a6"></a><a class="code" href="classbm_1_1sparse__vector.html#af9f218aa3af25cdfc9088cc0affdaa8f">optimize</a>(tb);</div>
<div class="line"> </div>
<div class="line"> <a name="_a7"></a><a class="code" href="structbm_1_1sparse__vector__serial__layout.html">bm::sparse_vector_serial_layout<svector></a> sv_lay;</div>
<div class="line"> <a name="a8"></a><a class="code" href="group__svserial.html#ga358d9cdc693676c83730f9fdb0cf922e">bm::sparse_vector_serialize</a>(sv1, sv_lay, tb);</div>
<div class="line"> </div>
<div class="line"> <span class="comment">// copy serialization buffer to some other location</span></div>
<div class="line"> <span class="comment">// to simulate data-base storage or network transaction</span></div>
<div class="line"> <span class="comment">//</span></div>
<div class="line"> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* buf = sv_lay.<a name="a9"></a><a class="code" href="structbm_1_1sparse__vector__serial__layout.html#a294902a56855b5bde661b07bba697ab2">buf</a>();</div>
<div class="line"> <span class="keywordtype">size_t</span> buf_size = sv_lay.<a name="a10"></a><a class="code" href="structbm_1_1sparse__vector__serial__layout.html#a1e735c5dd7f3f389b7d76fa22cc57da1">size</a>();</div>
<div class="line"> </div>
<div class="line"> vector<unsigned char> tmp_buf(buf_size);</div>
<div class="line"> ::memcpy(&tmp_buf[0], buf, buf_size);</div>
<div class="line"> </div>
<div class="line"> <span class="keywordtype">int</span> res = <a name="a11"></a><a class="code" href="group__svserial.html#ga9a06b8c24ce8cd1ec82f598b80149178">bm::sparse_vector_deserialize</a>(sv2, &tmp_buf[0], tb);</div>
<div class="line"> <span class="keywordflow">if</span> (res != 0)</div>
<div class="line"> {</div>
<div class="line"> cerr << <span class="stringliteral">"De-Serialization error!"</span> << 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">if</span> (!sv1.<a name="a12"></a><a class="code" href="classbm_1_1sparse__vector.html#a27be5c080f0bc67f8e886b7feb57e28e">equal</a>(sv2) )</div>
<div class="line"> {</div>
<div class="line"> cerr << <span class="stringliteral">"Error! Please report a bug to BitMagic project support."</span> << endl;</div>
<div class="line"> <span class="keywordflow">return</span> 1;</div>
<div class="line"> }</div>
<div class="line"> </div>
<div class="line"> cout << sv2.<a name="a13"></a><a class="code" href="classbm_1_1sparse__vector.html#a468ddeec517a36a4a9333008703acfab">size</a>() << endl;</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"> </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="aclassbm_1_1sparse__vector_html_af9f218aa3af25cdfc9088cc0affdaa8f"><div class="ttname"><a href="classbm_1_1sparse__vector.html#af9f218aa3af25cdfc9088cc0affdaa8f">bm::sparse_vector::optimize</a></div><div class="ttdeci">void optimize(bm::word_t *temp_block=0, typename bvector_type::optmode opt_mode=bvector_type::opt_compress, typename sparse_vector< Val, BV >::statistics *stat=0)</div><div class="ttdoc">run memory optimization for all vector plains</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec_8h_source.html#l01728">bmsparsevec.h:1728</a></div></div>
<div class="ttc" id="aclassbm_1_1sparse__vector_html"><div class="ttname"><a href="classbm_1_1sparse__vector.html">bm::sparse_vector</a></div><div class="ttdoc">sparse vector with runtime compression using bit transposition method</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec_8h_source.html#l00081">bmsparsevec.h:81</a></div></div>
<div class="ttc" id="abm_8h_html_ad9736d9521d713fa5d48859aa720bfdd"><div class="ttname"><a href="bm_8h.html#ad9736d9521d713fa5d48859aa720bfdd">BM_DECLARE_TEMP_BLOCK</a></div><div class="ttdeci">#define BM_DECLARE_TEMP_BLOCK(x)</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l00047">bm.h:47</a></div></div>
<div class="ttc" id="astructbm_1_1sparse__vector__serial__layout_html_a294902a56855b5bde661b07bba697ab2"><div class="ttname"><a href="structbm_1_1sparse__vector__serial__layout.html#a294902a56855b5bde661b07bba697ab2">bm::sparse_vector_serial_layout::buf</a></div><div class="ttdeci">const unsigned char * buf() const</div><div class="ttdoc">Return serialization buffer pointer.</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec__serial_8h_source.html#l00106">bmsparsevec_serial.h:106</a></div></div>
<div class="ttc" id="abmsparsevec_8h_html"><div class="ttname"><a href="bmsparsevec_8h.html">bmsparsevec.h</a></div><div class="ttdoc">Sparse constainer sparse_vector<> for integer types using bit-transposition transform.</div></div>
<div class="ttc" id="abmsparsevec__serial_8h_html"><div class="ttname"><a href="bmsparsevec__serial_8h.html">bmsparsevec_serial.h</a></div><div class="ttdoc">Serialization for sparse_vector<></div></div>
<div class="ttc" id="aclassbm_1_1sparse__vector_html_a27be5c080f0bc67f8e886b7feb57e28e"><div class="ttname"><a href="classbm_1_1sparse__vector.html#a27be5c080f0bc67f8e886b7feb57e28e">bm::sparse_vector::equal</a></div><div class="ttdeci">bool equal(const sparse_vector< Val, BV > &sv, bm::null_support null_able=bm::use_null) const BMNOEXCEPT</div><div class="ttdoc">check if another sparse vector has the same content and size</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec_8h_source.html#l01890">bmsparsevec.h:1890</a></div></div>
<div class="ttc" id="agroup__svserial_html_ga9a06b8c24ce8cd1ec82f598b80149178"><div class="ttname"><a href="group__svserial.html#ga9a06b8c24ce8cd1ec82f598b80149178">bm::sparse_vector_deserialize</a></div><div class="ttdeci">int sparse_vector_deserialize(SV &sv, const unsigned char *buf, bm::word_t *temp_block=0)</div><div class="ttdoc">Deserialize sparse vector.</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec__serial_8h_source.html#l00380">bmsparsevec_serial.h:380</a></div></div>
<div class="ttc" id="agroup__svserial_html_ga358d9cdc693676c83730f9fdb0cf922e"><div class="ttname"><a href="group__svserial.html#ga358d9cdc693676c83730f9fdb0cf922e">bm::sparse_vector_serialize</a></div><div class="ttdeci">void sparse_vector_serialize(const SV &sv, sparse_vector_serial_layout< SV > &sv_layout, bm::word_t *temp_block=0)</div><div class="ttdoc">Serialize sparse vector into a memory buffer(s) structure.</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec__serial_8h_source.html#l00356">bmsparsevec_serial.h:356</a></div></div>
<div class="ttc" id="astructbm_1_1sparse__vector__serial__layout_html"><div class="ttname"><a href="structbm_1_1sparse__vector__serial__layout.html">bm::sparse_vector_serial_layout</a></div><div class="ttdoc">layout class for serialization buffer structure</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec__serial_8h_source.html#l00057">bmsparsevec_serial.h:57</a></div></div>
<div class="ttc" id="aclassbm_1_1sparse__vector_html_a468ddeec517a36a4a9333008703acfab"><div class="ttname"><a href="classbm_1_1sparse__vector.html#a468ddeec517a36a4a9333008703acfab">bm::sparse_vector::size</a></div><div class="ttdeci">size_type size() const BMNOEXCEPT</div><div class="ttdoc">return size of the vector</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec_8h_source.html#l00644">bmsparsevec.h:644</a></div></div>
<div class="ttc" id="aclassbm_1_1sparse__vector_html_a2f8aadebd1cfecd8e70fc771dbbd748d"><div class="ttname"><a href="classbm_1_1sparse__vector.html#a2f8aadebd1cfecd8e70fc771dbbd748d">bm::sparse_vector::push_back</a></div><div class="ttdeci">void push_back(value_type v)</div><div class="ttdoc">push value back into vector</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec_8h_source.html#l01498">bmsparsevec.h:1498</a></div></div>
<div class="ttc" id="astructbm_1_1sparse__vector__serial__layout_html_a1e735c5dd7f3f389b7d76fa22cc57da1"><div class="ttname"><a href="structbm_1_1sparse__vector__serial__layout.html#a1e735c5dd7f3f389b7d76fa22cc57da1">bm::sparse_vector_serial_layout::size</a></div><div class="ttdeci">size_t size() const</div><div class="ttdoc">return current serialized size</div><div class="ttdef"><b>Definition:</b> <a href="bmsparsevec__serial_8h_source.html#l00084">bmsparsevec_serial.h:84</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>
<div class="ttc" id="asvsample02_8cpp_html_ae1c8c7a3dde49a1c340207dee7982f37"><div class="ttname"><a href="svsample02_8cpp.html#ae1c8c7a3dde49a1c340207dee7982f37">svector</a></div><div class="ttdeci">bm::sparse_vector< unsigned, bm::bvector<> > svector</div><div class="ttdef"><b>Definition:</b> <a href="svsample02_8cpp_source.html#l00043">svsample02.cpp:43</a></div></div>
<div class="ttc" id="asvsample02_8cpp_html_a840291bc02cba5474a4cb46a9b9566fe"><div class="ttname"><a href="svsample02_8cpp.html#a840291bc02cba5474a4cb46a9b9566fe">main</a></div><div class="ttdeci">int main(void)</div><div class="ttdef"><b>Definition:</b> <a href="svsample02_8cpp_source.html#l00045">svsample02.cpp:45</a></div></div>
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