或者，对于一个更更小，更易于阅读的解决方案，Boost！

Or, for a much smaller and easier-to-read solution, Boost!

// #include <algorithm>
// #include <boost/algorithm/string/predicate.hpp>

const auto it = std::find_if(
   std::begin(vec),
   std::end(vec),
   [&myString](const auto& str) { return boost::iequals(myString, str); }
);

const bool found = (it != std::end(vec));