inheritance - protected function call c++ - 


class base() { protected:     void foo(); } class derived : public base {     void bar(); }  void derived::bar(){     foo();    //this causes error. }

i know i'm missing obvious i've been going round in circles hour. how call protected function in derived class?

the error appears in comments linker error, have checked that:

it's hard tell more without more info.

also, code contains invalid syntax, causes error(s):

  • class lower case
  • no brackets after class name
  • ; after class definition

the following code works (until gets linker) on g++ version 4.9.0:

class base { protected:     void foo(); };  class derived : public base {     void bar(); };  void derived::bar(){     foo(); }

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