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(C++) protected

protected is a keyword to a class its access level to protected or for protected inheritance.

Examples

• protected example 1: a protected member variable (but note [2])

Advice

• Use protected members only carefully when really needed [1]
• Don't declare member variables protected [2]

References

1. Bjarne Stroustrup. The C++ Programming Language (4th edition). 2013. ISBN: 978-0-321-56384-2. Chapter 20.7. Advice. page 611: '[12] Use protected members only carefully when really needed'
2. Bjarne Stroustrup. The C++ Programming Language (4th edition). 2013. ISBN: 978-0-321-56384-2. Chapter 20.7. Advice. page 611: '[13] Don't declare data members protected'

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