#27 Section selectivity in unidentified_variables()

[Julian Berengut]

...
GetPot opt(inputFileName.c_str(), "//", "\n", ",");
double N = opt("Vehicle/N", 0);

opt.set_prefix("Vehicle/");
N = opt("N", 1);

std::vector<std::string> ufo = opt.unidentified_variables();
...
then ufo contains the "Vehicle/N" variable despite it having been accessed.</std::string>