C++: syntax for accessing member struct from pointer to class

Question

I\'m trying to access a member structs variables, but I can\'t seem to get the syntax right. The two compile errors pr. access are: error C2274: \'function-style cast\' : i

Answer 1

Bar is inner structure defined inside Foo. Creation of Foo object does not implicitly create the Bar's members. You need to explicitly create the object of Bar using Foo::Bar syntax.

Foo foo;
Foo::Bar fooBar;
fooBar.otherdata = 5;
cout << fooBar.otherdata;

Otherwise,

Create the Bar instance as member in Foo class.

class Foo{
public:
    struct Bar{
        int otherdata;
    };
    int somedata;
    Bar myBar;  //Now, Foo has Bar's instance as member

};

 Foo foo;
 foo.myBar.otherdata = 5;