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- Class member: When to declare pvt and pu
Class member: When to declare pvt and public
Please explain to me with least ambiguity when is a class member should be declared public and when private?
read about basic c++ paradigms - in this case: encapsulation:
http://www.tutorialspoint.com/cplusplus/cpp_data_encapsulation.htm
http://www.tutorialspoint.com/cplusplus/cpp_data_encapsulation.htm
In short:
Data members should be private unless it is just aggregate structure.
Interface should be public (and preferably non-virtual if you are using NVI)
http://isocpp.org/wiki/faq/strange-inheritance#protected-virtuals
http://www.gotw.ca/publications/mill18.htm
Overloadable interface implementation should be private, unless it should be called by derived classes, in this case it should be protected.
Data members should be private unless it is just aggregate structure.
Interface should be public (and preferably non-virtual if you are using NVI)
http://isocpp.org/wiki/faq/strange-inheritance#protected-virtuals
http://www.gotw.ca/publications/mill18.htm
Overloadable interface implementation should be private, unless it should be called by derived classes, in this case it should be protected.
Structure whose only purpose is to group some values together. It has no own behavior, does not do checks, etc. Usually used for data transfer between different applications.
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