Scope for Public and Private

Question

There is a piece of code:

class BirdCarreau: public viscosityModel  // Private data
{


        dictionary BirdCarreauCoeffs_;
...

Why this data which is inside this PUBLIC type is said to be private data?

Are you asking why the `private` data members of `viscosityModel` aren't visible to `BirdCarreau`? — StoryTeller - Unslander Monica, Feb 18 '16 at 11:47
Take a look at http://stackoverflow.com/questions/860339/difference-between-private-public-and-protected-inheritance. — Eutherpy, Feb 18 '16 at 11:49
That's not a ‘*public type*’, it's a class that publicly inherits from an other class. Any C++ book worth its name will teach you this. — Biffen, Feb 18 '16 at 11:53

score 1 · Answer 1 · answered Feb 18 '16 at 11:47

1

Default access protection for members in a class is private. So you need to put public: before.

The public you provided is only for the base class. But your members are extending the derived class.

answered Feb 18 '16 at 11:47

Werner Henze

16,404
12
44
69

score 1 · Answer 2 · answered Feb 18 '16 at 11:47

1

The class itself is public but its members are private to the user. That's the general idea of classes. you can make them public by specifically stating their access modifier to be private

answered Feb 18 '16 at 11:47

Zachi Shtain

826
1
13
31

score 0 · Accepted Answer · answered Feb 18 '16 at 12:05

0

In your example public means that BirdCarreau inherit the data and methods from viscosityModel.So public is used to achieve public inheritance.By default, all members of a class have private access. So, the data in your class is private.

answered Feb 18 '16 at 12:05

SVN

254
1
2
6

Scope for Public and Private

3 Answers3