/in/foo.cc: In constructor 'Package::Package(Person&, Person&, double, double)':
/in/foo.cc:40:12: warning: 'Package::recipient' will be initialized after [-Wreorder]
     Person recipient;
            ^~~~~~~~~
/in/foo.cc:36:12: warning:   'double Package::weight' [-Wreorder]
     double weight;
            ^~~~~~
/in/foo.cc:41:5: warning:   when initialized here [-Wreorder]
     Package(Person&s ,Person&r,double w=1.0,double p=1.0)
     ^~~~~~~