blocking_udp_echo_server.cpp.html
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<tr><th colspan='2'>src/​examples/​cpp03/​echo/​blocking_udp_echo_ser​ver.​cpp</th><th colspan='2'>src/​examples/​cpp11/​echo/​blocking_udp_echo_ser​ver.​cpp</th></tr>
<tr class="diffhunk"><td colspan="2">⋮</td><td colspan="2">⋮</td></tr><tr class="diffunmodified"><td class="diffline">1 </td><td class="diffpresent">/​/​</td><td class="diffline">1 </td><td class="diffpresent">/​/​</td></tr>
<tr class="diffunmodified"><td class="diffline">2 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​blocking_udp_echo_ser​ver.​cpp</td><td class="diffline">2 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​blocking_udp_echo_ser​ver.​cpp</td></tr>
<tr class="diffunmodified"><td class="diffline">3 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​~~~~~~~~~~~~~~~~~~~~~​~~~~~~~</td><td class="diffline">3 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​~~~~~~~~~~~~~~~~~~~~~​~~~~~~~</td></tr>
<tr class="diffunmodified"><td class="diffline">4 </td><td class="diffpresent">/​/​</td><td class="diffline">4 </td><td class="diffpresent">/​/​</td></tr>
<tr class="diffunmodified"><td class="diffline">5 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​Copyright<span class="diffponct">·</span>​(c)​<span class="diffponct">·</span>​2003-​2020<span class="diffponct">·</span>​Christopher<span class="diffponct">·</span>​M.​<span class="diffponct">·</span>​Kohlhoff<span class="diffponct">·</span>​(chris<span class="diffponct">·</span>​at<span class="diffponct">·</span>​kohlhoff<span class="diffponct">·</span>​dot<span class="diffponct">·</span>​com)​</td><td class="diffline">5 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​Copyright<span class="diffponct">·</span>​(c)​<span class="diffponct">·</span>​2003-​2020<span class="diffponct">·</span>​Christopher<span class="diffponct">·</span>​M.​<span class="diffponct">·</span>​Kohlhoff<span class="diffponct">·</span>​(chris<span class="diffponct">·</span>​at<span class="diffponct">·</span>​kohlhoff<span class="diffponct">·</span>​dot<span class="diffponct">·</span>​com)​</td></tr>
<tr class="diffunmodified"><td class="diffline">6 </td><td class="diffpresent">/​/​</td><td class="diffline">6 </td><td class="diffpresent">/​/​</td></tr>
<tr class="diffunmodified"><td class="diffline">7 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​Distributed<span class="diffponct">·</span>​under<span class="diffponct">·</span>​the<span class="diffponct">·</span>​Boost<span class="diffponct">·</span>​Software<span class="diffponct">·</span>​License,​<span class="diffponct">·</span>​Version<span class="diffponct">·</span>​1.​0.​<span class="diffponct">·</span>​(See<span class="diffponct">·</span>​accompanying</td><td class="diffline">7 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​Distributed<span class="diffponct">·</span>​under<span class="diffponct">·</span>​the<span class="diffponct">·</span>​Boost<span class="diffponct">·</span>​Software<span class="diffponct">·</span>​License,​<span class="diffponct">·</span>​Version<span class="diffponct">·</span>​1.​0.​<span class="diffponct">·</span>​(See<span class="diffponct">·</span>​accompanying</td></tr>
<tr class="diffunmodified"><td class="diffline">8 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​file<span class="diffponct">·</span>​LICENSE_1_0.​txt<span class="diffponct">·</span>​or<span class="diffponct">·</span>​copy<span class="diffponct">·</span>​at<span class="diffponct">·</span>​http:​/​/​www.​boost.​org/​LICENSE_1_0.​txt)​</td><td class="diffline">8 </td><td class="diffpresent">/​/​<span class="diffponct">·</span>​file<span class="diffponct">·</span>​LICENSE_1_0.​txt<span class="diffponct">·</span>​or<span class="diffponct">·</span>​copy<span class="diffponct">·</span>​at<span class="diffponct">·</span>​http:​/​/​www.​boost.​org/​LICENSE_1_0.​txt)​</td></tr>
<tr class="diffunmodified"><td class="diffline">9 </td><td class="diffpresent">/​/​</td><td class="diffline">9 </td><td class="diffpresent">/​/​</td></tr>
<tr class="diffunmodified"><td class="diffline">10 </td><td class="diffpresent"></td><td class="diffline">10 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">11 </td><td class="diffpresent">#include<span class="diffponct">·</span>​<cstdlib></td><td class="diffline">11 </td><td class="diffpresent">#include<span class="diffponct">·</span>​<cstdlib></td></tr>
<tr class="diffunmodified"><td class="diffline">12 </td><td class="diffpresent">#include<span class="diffponct">·</span>​<iostream></td><td class="diffline">12 </td><td class="diffpresent">#include<span class="diffponct">·</span>​<iostream></td></tr>
<tr class="diffunmodified"><td class="diffline">13 </td><td class="diffpresent">#include<span class="diffponct">·</span>​"asio.​hpp"</td><td class="diffline">13 </td><td class="diffpresent">#include<span class="diffponct">·</span>​"asio.​hpp"</td></tr>
<tr class="diffunmodified"><td class="diffline">14 </td><td class="diffpresent"></td><td class="diffline">14 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">15 </td><td class="diffpresent">using<span class="diffponct">·</span>​asio:​:​ip:​:​udp;​</td><td class="diffline">15 </td><td class="diffpresent">using<span class="diffponct">·</span>​asio:​:​ip:​:​udp;​</td></tr>
<tr class="diffunmodified"><td class="diffline">16 </td><td class="diffpresent"></td><td class="diffline">16 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">17 </td><td class="diffpresent">enum<span class="diffponct">·</span>​{<span class="diffponct">·</span>​max_length<span class="diffponct">·</span>​=<span class="diffponct">·</span>​1024<span class="diffponct">·</span>​};​</td><td class="diffline">17 </td><td class="diffpresent">enum<span class="diffponct">·</span>​{<span class="diffponct">·</span>​max_length<span class="diffponct">·</span>​=<span class="diffponct">·</span>​1024<span class="diffponct">·</span>​};​</td></tr>
<tr class="diffunmodified"><td class="diffline">18 </td><td class="diffpresent"></td><td class="diffline">18 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">19 </td><td class="diffpresent">void<span class="diffponct">·</span>​server(asio:​:​io_context&<span class="diffponct">·</span>​io_context,​<span class="diffponct">·</span>​unsigned<span class="diffponct">·</span>​short<span class="diffponct">·</span>​port)​</td><td class="diffline">19 </td><td class="diffpresent">void<span class="diffponct">·</span>​server(asio:​:​io_context&<span class="diffponct">·</span>​io_context,​<span class="diffponct">·</span>​unsigned<span class="diffponct">·</span>​short<span class="diffponct">·</span>​port)​</td></tr>
<tr class="diffunmodified"><td class="diffline">20 </td><td class="diffpresent">{</td><td class="diffline">20 </td><td class="diffpresent">{</td></tr>
<tr class="diffunmodified"><td class="diffline">21 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​udp:​:​socket<span class="diffponct">·</span>​sock(io_context,​<span class="diffponct">·</span>​udp:​:​endpoint(udp:​:​v4()​,​<span class="diffponct">·</span>​port)​)​;​</td><td class="diffline">21 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​udp:​:​socket<span class="diffponct">·</span>​sock(io_context,​<span class="diffponct">·</span>​udp:​:​endpoint(udp:​:​v4()​,​<span class="diffponct">·</span>​port)​)​;​</td></tr>
<tr class="diffunmodified"><td class="diffline">22 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​for<span class="diffponct">·</span>​(;​;​)​</td><td class="diffline">22 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​for<span class="diffponct">·</span>​(;​;​)​</td></tr>
<tr class="diffunmodified"><td class="diffline">23 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​{</td><td class="diffline">23 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​{</td></tr>
<tr class="diffunmodified"><td class="diffline">24 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​char<span class="diffponct">·</span>​data[max_length];​</td><td class="diffline">24 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​char<span class="diffponct">·</span>​data[max_length];​</td></tr>
<tr class="diffunmodified"><td class="diffline">25 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​udp:​:​endpoint<span class="diffponct">·</span>​sender_endpoint;​</td><td class="diffline">25 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​udp:​:​endpoint<span class="diffponct">·</span>​sender_endpoint;​</td></tr>
<tr class="diffunmodified"><td class="diffline">26 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​size_t<span class="diffponct">·</span>​length<span class="diffponct">·</span>​=<span class="diffponct">·</span>​sock.​receive_from(</td><td class="diffline">26 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​size_t<span class="diffponct">·</span>​length<span class="diffponct">·</span>​=<span class="diffponct">·</span>​sock.​receive_from(</td></tr>
<tr class="diffunmodified"><td class="diffline">27 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​asio:​:​buffer(data,​<span class="diffponct">·</span>​max_length)​,​<span class="diffponct">·</span>​sender_endpoint)​;​</td><td class="diffline">27 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​asio:​:​buffer(data,​<span class="diffponct">·</span>​max_length)​,​<span class="diffponct">·</span>​sender_endpoint)​;​</td></tr>
<tr class="diffunmodified"><td class="diffline">28 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​sock.​send_to(asio:​:​buffer(data,​<span class="diffponct">·</span>​length)​,​<span class="diffponct">·</span>​sender_endpoint)​;​</td><td class="diffline">28 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​sock.​send_to(asio:​:​buffer(data,​<span class="diffponct">·</span>​length)​,​<span class="diffponct">·</span>​sender_endpoint)​;​</td></tr>
<tr class="diffunmodified"><td class="diffline">29 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​}</td><td class="diffline">29 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​}</td></tr>
<tr class="diffunmodified"><td class="diffline">30 </td><td class="diffpresent">}</td><td class="diffline">30 </td><td class="diffpresent">}</td></tr>
<tr class="diffunmodified"><td class="diffline">31 </td><td class="diffpresent"></td><td class="diffline">31 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">32 </td><td class="diffpresent">int<span class="diffponct">·</span>​main(int<span class="diffponct">·</span>​argc,​<span class="diffponct">·</span>​char*<span class="diffponct">·</span>​argv[])​</td><td class="diffline">32 </td><td class="diffpresent">int<span class="diffponct">·</span>​main(int<span class="diffponct">·</span>​argc,​<span class="diffponct">·</span>​char*<span class="diffponct">·</span>​argv[])​</td></tr>
<tr class="diffunmodified"><td class="diffline">33 </td><td class="diffpresent">{</td><td class="diffline">33 </td><td class="diffpresent">{</td></tr>
<tr class="diffunmodified"><td class="diffline">34 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​try</td><td class="diffline">34 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​try</td></tr>
<tr class="diffunmodified"><td class="diffline">35 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​{</td><td class="diffline">35 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​{</td></tr>
<tr class="diffunmodified"><td class="diffline">36 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​if<span class="diffponct">·</span>​(argc<span class="diffponct">·</span>​!=<span class="diffponct">·</span>​2)​</td><td class="diffline">36 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​if<span class="diffponct">·</span>​(argc<span class="diffponct">·</span>​!=<span class="diffponct">·</span>​2)​</td></tr>
<tr class="diffunmodified"><td class="diffline">37 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​{</td><td class="diffline">37 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​{</td></tr>
<tr class="diffunmodified"><td class="diffline">38 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​std:​:​cerr<span class="diffponct">·</span>​<<<span class="diffponct">·</span>​"Usage:​<span class="diffponct">·</span>​blocking_udp_echo_ser​ver<span class="diffponct">·</span>​<port>\n";​</td><td class="diffline">38 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​std:​:​cerr<span class="diffponct">·</span>​<<<span class="diffponct">·</span>​"Usage:​<span class="diffponct">·</span>​blocking_udp_echo_ser​ver<span class="diffponct">·</span>​<port>\n";​</td></tr>
<tr class="diffunmodified"><td class="diffline">39 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​return<span class="diffponct">·</span>​1;​</td><td class="diffline">39 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​return<span class="diffponct">·</span>​1;​</td></tr>
<tr class="diffunmodified"><td class="diffline">40 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​}</td><td class="diffline">40 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​}</td></tr>
<tr class="diffunmodified"><td class="diffline">41 </td><td class="diffpresent"></td><td class="diffline">41 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">42 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​asio:​:​io_context<span class="diffponct">·</span>​io_context;​</td><td class="diffline">42 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​asio:​:​io_context<span class="diffponct">·</span>​io_context;​</td></tr>
<tr class="diffunmodified"><td class="diffline">43 </td><td class="diffpresent"></td><td class="diffline">43 </td><td class="diffpresent"></td></tr>
<tr class="diffchanged"><td class="diffline">44 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffchanged2">u</span><span class="diffchanged2">s</span><span class="diffchanged2">i</span><span class="diffchanged2">n</span><span class="diffchanged2">g</span><span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2">n</span><span class="diffchanged2">a</span><span class="diffchanged2">m</span><span class="diffchanged2">e</span><span class="diffchanged2">s</span><span class="diffchanged2">p</span><span class="diffchanged2">a</span><span class="diffchanged2">c</span>e<span class="diffponct">·</span>​std<span class="diffchanged2">;​</span><span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2">/​</span><span class="diffchanged2">/​</span><span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2">F</span><span class="diffchanged2">o</span>r<span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2">a</span><span class="diffchanged2">t</span><span class="diffchanged2">o</span><span class="diffchanged2">i</span><span class="diffchanged2">.​</span></td><td class="diffline">44 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffchanged2">s</span><span class="diffchanged2">e</span><span class="diffchanged2">r</span><span class="diffchanged2">v</span><span class="diffchanged2">e</span><span class="diffchanged2">r</span><span class="diffchanged2">(</span><span class="diffchanged2">i</span><span class="diffchanged2">o</span><span class="diffchanged2">_</span><span class="diffchanged2">c</span><span class="diffchanged2">o</span><span class="diffchanged2">n</span><span class="diffchanged2">t</span>e<span class="diffchanged2">x</span><span class="diffchanged2">t</span><span class="diffchanged2">,​</span><span class="diffponct">·</span>​std<span class="diffchanged2">:​</span><span class="diffchanged2">:​</span><span class="diffchanged2">a</span><span class="diffchanged2">t</span><span class="diffchanged2">o</span><span class="diffchanged2">i</span><span class="diffchanged2">(</span><span class="diffchanged2">a</span>r<span class="diffchanged2">g</span><span class="diffchanged2">v</span><span class="diffchanged2">[</span><span class="diffchanged2">1</span><span class="diffchanged2">]</span><span class="diffchanged2">)​</span><span class="diffchanged2">)​</span><span class="diffchanged2">;​</span></td></tr>
<tr class="diffchanged"><td class="diffline">45 </td><td class="diffpresent"><span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2">s</span><span class="diffchanged2">e</span><span class="diffchanged2">r</span><span class="diffchanged2">v</span><span class="diffchanged2">e</span><span class="diffchanged2">r</span><span class="diffchanged2">(</span><span class="diffchanged2">i</span><span class="diffchanged2">o</span><span class="diffchanged2">_</span><span class="diffchanged2">c</span><span class="diffchanged2">o</span><span class="diffchanged2">n</span><span class="diffchanged2">t</span><span class="diffchanged2">e</span><span class="diffchanged2">x</span><span class="diffchanged2">t</span><span class="diffchanged2">,​</span><span class="diffchanged2"><span class="diffponct">·</span>​</span><span class="diffchanged2">a</span><span class="diffchanged2">t</span><span class="diffchanged2">o</span><span class="diffchanged2">i</span><span class="diffchanged2">(</span><span class="diffchanged2">a</span><span class="diffchanged2">r</span><span class="diffchanged2">g</span><span class="diffchanged2">v</span><span class="diffchanged2">[</span><span class="diffchanged2">1</span><span class="diffchanged2">]</span><span class="diffchanged2">)​</span><span class="diffchanged2">)​</span><span class="diffchanged2">;​</span><span class="diffchanged2"></span></td><td colspan="2"></td></tr>
<tr class="diffunmodified"><td class="diffline">46 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​}</td><td class="diffline">45 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​}</td></tr>
<tr class="diffunmodified"><td class="diffline">47 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​catch<span class="diffponct">·</span>​(std:​:​exception&<span class="diffponct">·</span>​e)​</td><td class="diffline">46 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​catch<span class="diffponct">·</span>​(std:​:​exception&<span class="diffponct">·</span>​e)​</td></tr>
<tr class="diffunmodified"><td class="diffline">48 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​{</td><td class="diffline">47 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​{</td></tr>
<tr class="diffunmodified"><td class="diffline">49 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​std:​:​cerr<span class="diffponct">·</span>​<<<span class="diffponct">·</span>​"Exception:​<span class="diffponct">·</span>​"<span class="diffponct">·</span>​<<<span class="diffponct">·</span>​e.​what()​<span class="diffponct">·</span>​<<<span class="diffponct">·</span>​"\n";​</td><td class="diffline">48 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​<span class="diffponct">·</span>​std:​:​cerr<span class="diffponct">·</span>​<<<span class="diffponct">·</span>​"Exception:​<span class="diffponct">·</span>​"<span class="diffponct">·</span>​<<<span class="diffponct">·</span>​e.​what()​<span class="diffponct">·</span>​<<<span class="diffponct">·</span>​"\n";​</td></tr>
<tr class="diffunmodified"><td class="diffline">50 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​}</td><td class="diffline">49 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​}</td></tr>
<tr class="diffunmodified"><td class="diffline">51 </td><td class="diffpresent"></td><td class="diffline">50 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">52 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​return<span class="diffponct">·</span>​0;​</td><td class="diffline">51 </td><td class="diffpresent"><span class="diffponct">·</span>​<span class="diffponct">·</span>​return<span class="diffponct">·</span>​0;​</td></tr>
<tr class="diffunmodified"><td class="diffline">53 </td><td class="diffpresent">}</td><td class="diffline">52 </td><td class="diffpresent">}</td></tr>
</table>
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