c++ - Arrays enums and input -

i have enumerated data type for/in class. want set/assign values inside main. code looks like

class pet { public:      enum species { bird,cat,dog,rat,horse };     enum demands { food,water,companionship };     demands demand;     species petspecies;        float waterlevel = 100;     float foodlevel = 100;     float happiness = 100;      //species not initialized in class , have initialized separately in main      string name;      //and bunch of functions here , there  }; 

inside main function using vector create set of pets each own name , species. setting species pets proving difficult.
how do it?

vector_pets[i].petspecies = pet::horse; should want.