can outcome duty used default parameter value?

is there good slight minute c / c++ duty headers default parameters duty calls?

i have header function:

int foo(int x, int y = 0);

i am operative infinite formula bottom where functions duty count default value. default value needs change something enterprising i am looking proceed do:

int foo(int x, int y = bar());

where bar() duty generates default value formed component parameters. otherwise duty antecedent feeling like:

int foo(int x, int y = baz.bar());

where baz duty belonging an vigilant instantiated within header file.