boost::pfr::greater — std::greater like comparator that returns boost::pfr::gt (x, y)
// In header: <boost/pfr/functors.hpp> template<typename T> struct greater { // public member functions (, ) ; };
greater
( x, y) ;
Returns:
true if field of x greater than the field with same index of y and all previous fields of x equal to the same fields of y.