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</o:shapelayout></xml><![endif]--></head><body lang=EN-IE link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>I was adding a new option for our backend, and because of the nature of the option I wanted to use an ‘</span><span style='font-size:12.0pt;font-family:"Courier New",serif'>enum</span><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>’, something like:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'>enum Direction {<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'> left,<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'> right,<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'> up,<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'> down<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'>};<o:p></o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'>cl:opt<Direction> myOpt(“option-switch”, cl::init(up), cl::desc(“what it does”), cl::Hidden);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>This bit is fine, but then I wanted to change it on the command-line to ‘</span><span style='font-size:12.0pt;font-family:"Courier New",serif'>clang</span><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>’ and tried:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:12.0pt;font-family:"Courier New",serif'>clang ... -mllvm -option-switch=3 ...<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>but that doesn’t work, and I get something like “</span><span style='font-size:12.0pt;font-family:"Courier New",serif'>invalid option ‘3’</span><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>”. If I change the type to ‘</span><span style='font-size:12.0pt;font-family:"Courier New",serif'>int</span><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>’ it works fine. Is it valid to use an ‘</span><span style='font-size:12.0pt;font-family:"Courier New",serif'>enum</span><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>’ in this way? And if so, what is the correct way of specifying a value to the option if I do use an ‘</span><span style='font-size:12.0pt;font-family:"Courier New",serif'>enum</span><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>’ for the type?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'> MartinO<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Book Antiqua",serif'><o:p> </o:p></span></p></div></body></html>