c++ - Not understanding how pointers and classes work together in this example -


hmmmm stumped on one, using visual studio 2012 have 1 error left on project , dying test out. yes it's c++ class , hope posted enough code.

i error:

c2227 left of ->writedata must point class/struct/union/generic type

in previous project line had element of array of pointers ( employee* pointer assume) , worked so:

employee* myemployees[max_emps]; ... myemployees[i]->writedata(outputemployee);

so implement vector of employee*, , assume contains pointers:

myvector<employee*> employeeptrlist;

i next couple steps bit indirectly have cleared prof. debry:

employee* empptr1 = new hourlyemployee(emp1_id, emp1_name, emp1_address, emp1_phone, emp1_hours, emp1_wage); 2... 3... 4...  employeeptrlist.push_back(empptr1); 2... 3... 4...

then later in program line giving me error:

employeeptrlist.at(i)->writedata(outputemployee);

i have tried various things, if dereference *(employeeptrlist) fun changes intellisense error still same:

c2227 left of ->writedata must point class/struct/union/generic type

any idears? stumped understand employeeptrlist employee pointer maybe it's looking @ in wrong class? guess maybe not "pointing" function in myvector class properly?

thanks

without knowing how myvector works, few things @ first glance going wrong:

.at() might returning reference object (or copy of object), you'd need use . operator.

another possibility that, if .at() returns iterator of type employee*, might need dereference iterator (i.e. (*employeeptrlist.at(i))->writedata(outputemployee);) depending on implementation.


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