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    <p>You can get it working on Windows by removing the &lt;unistd.h&gt; include and eliminating your use of the <a href="http://www.opengroup.org/onlinepubs/000095399/functions/getopt.html" rel="nofollow noreferrer">getopt()</a> function... you will have to parse the commandline manually or use <a href="http://www.boost.org/doc/libs/1_42_0/doc/html/program_options.html" rel="nofollow noreferrer">boost::program_options</a>.</p> <p>The header &lt;unistd.h&gt; and the the getopt() function are both available on UNIX-compliant operating systems, but not available on Windows (which is flagrantly non-compliant). If you want to be able to compile without any source code changes, you might also try downloading and installing <a href="http://www.cygwin.com/" rel="nofollow noreferrer">Cygwin</a>, which attempts to provide a UNIX-compliant environment inside of Windows with a modicum of success (though it isn't perfect, by any means). Alternatively, in the future, you can use a cross-platform library such as <a href="http://www.boost.org/" rel="nofollow noreferrer">Boost</a> or <a href="http://qt.nokia.com/" rel="nofollow noreferrer">Qt</a>.</p> <p><b>Manual Parsing</b><br /> Based on your usage message, you could replace the while-loop with the following code:</p> <pre> int idx=1; while ( idx &lt; argc ){ std::string arg(argv[idx]); if (arg == "-m"){ //minsup idx++; if (idx&gt;argc){ std::cerr&lt;&lt;"Option \""&lt;&lt;arg&lt;&lt;"\" requires parameter."&lt;&lt;std::endl; usage(argv[0]); // move usage message into a function std::exit(1); } minsup=atoi(argv[idx++]); }else if (arg == "-M"){ //minpat idx++; if (idx&gt;argc){ std::cerr&lt;&lt;"Option \""&lt;&lt;arg&lt;&lt;"\" requires parameter."&lt;&lt;std::endl; usage(argv[0]); // move usage message into a function std::exit(1); } minpat=atoi(argv[idx++]); }else if (arg == "-L"){ //maxpat idx++; if (idx&gt;argc){ std::cerr&lt;&lt;"Option \""&lt;&lt;arg&lt;&lt;"\" requires parameter."&lt;&lt;std::endl; usage(argv[0]); // move usage message into a function std::exit(1); } maxpat=atoi(argv[idx++]); }else if (arg == "-a"){ all=true; idx++; }else if (arg == "-w"){ where=true; idx++; }else if (arg == "-v"){ verbose=true; idx++; }else if (arg == "-t"){ //type idx++; if (idx&gt;argc){ std::cerr&lt;&lt;"Option \""&lt;&lt;arg&lt;&lt;"\" requires parameter."&lt;&lt;std::endl; usage(argv[0]); // move usage message into a function std::exit(1); } type=argv[idx++]; }else if (arg == "-d"){ idx++; if (idx&gt;argc){ std::cerr&lt;&lt;"Option \""&lt;&lt;arg&lt;&lt;"\" requires parameter."&lt;&lt;std::endl; usage(argv[0]); // move usage message into a function std::exit(1); } delimiter=argv[idx++]; }else { usage(); std::exit(1); } } </pre> <p>Then add the following code somewhere before your main function:</p> <pre> void usage(const char* progname) { std::cout &lt;&lt; "Usage: " &lt;&lt; progname &lt;&lt; " [-m minsup] [-M minpat] [-L maxpat] [-a] [-w] [-v] [-t type] [-d delimiter]" &lt; data .." &lt;&lt; endl; } </pre> <p>Note that this is slightly different from how getopt actually behaves (getopt would allow you to combine -awv together, whereas this parsing won't... but if that isn't important, then this should get the job done.</p>
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    1. POHow to compile a C++ source code written for Linux/Unix on Windows Vista (code given)
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    1. USMichael Aaron Safyan
    1. USMichael Aaron Safyan
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    1. COthanks Michael, i am trying to follow your instructions. But I have not worked in c++ much and was thinking that i might be able to compile it right away.
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    2. CO@HTMZ, if you want to compile without any changes, then your best bet is Cygwin.
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    3. CO@HTMZ, I have updated with code to parse manually.
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