The problem is that your user still has to enter the keys like:<br><br>appname.exe --key="public key" --key="secret key"<br><br>And if the user enters:<br>appname.exe --key="secret key" --key="public key"
<br><br>How do you know which is the right one?<br><br>The best solution would be to enforce to specify public and secret params:<br>appname.exe public="public key" secret="secret key"<br><br><br>The last point also applies to my previous post. This way you will avoid some errors for your users.
<br><br><br>Best Regards,<br>Ovanes<br><br><br><div><span class="gmail_quote">On 11/2/07, <b class="gmail_sendername">Edwin Savarimuthu</b> <<a href="mailto:zerobook@gmail.com">zerobook@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
You can use something like this as well.<br><br>std::vector<std::string> key_pair;<br>("secert", boost::program_options::value< std::vector<std::string><br>>(&key_pair), "creates the share secret key");
<br><br>Then you can do you error checks ...<br><br>if ( key_pair.size() == 2 )<br>{<br> // Do your processing here<br>} else<br>{<br> // error<br>}<br><br>This example uses string vector. I guess std::vector<BigInteger>
<br>should also work for you.<br><br><br>Thanks,<br>Edwin<br><br><br><br><br>On 10/31/07, Ovanes Markarian <<a href="mailto:om_boost@keywallet.com">om_boost@keywallet.com</a>> wrote:<br>> One more addition:<br>>
<br>> boost::tuple<BigInteger, BigInteger> key_pair;<br>><br>> This will not parse your key. You need to do it manually. So your param<br>> should be std::string. And than you can tokenize you string. Or you define 2
<br>> separate params and let program_options parse them into Integers for you.<br>> But I am unsure if this is supported. Probably yes. I am 100% sure program<br>> options will not tokenize one param for you. May be only if your key_pair
<br>> supports construction from a space separted string.<br>><br>><br>> Regards,<br>> Ovanes<br>><br>><br>> On 10/31/07, Ovanes Markarian <<a href="mailto:om_boost@keywallet.com">om_boost@keywallet.com
</a>> wrote:<br>> ><br>> > Hi!<br>> ><br>> ><br>> ><br>> > On 10/31/07, chun ping wang <<a href="mailto:cablepuff@gmail.com">cablepuff@gmail.com</a>> wrote:<br>> > ><br>
> > > HI how would I use program options to accept multiple input.<br>> > ><br>> > > The thing compiles but when I do DiffieHellman.exe --secert 817 697<br>> > ><br>> > > I get this error.
<br>> > > C:\CPW\cs_classes>DiffieHellmanEncrypt --secert 817 697<br>> > > terminate called after throwing an instance of<br>> > > 'boost::program_options::invalid_<br>> > > option_value'
<br>> > > what(): in option 'secert': invalid option value '817'<br>> > ><br>> > > This application has requested the Runtime to terminate it in an unusual<br>> > > way.
<br>> > > Please contact the application's support team for more information.<br>> > ><br>> > ><br>> > ><br>> > the option is in your case:<br>> ><br>> > --secert="817 697"
<br>> ><br>> > Regards,<br>> > Ovanes<br>><br>_______________________________________________<br>Boost-users mailing list<br><a href="mailto:Boost-users@lists.boost.org">Boost-users@lists.boost.org</a>
<br><a href="http://lists.boost.org/mailman/listinfo.cgi/boost-users">http://lists.boost.org/mailman/listinfo.cgi/boost-users</a><br></blockquote></div><br>