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(C++) static member function

A static member function is a type of member function that does not need a specific object.

Advice

• Declare a member function that does not modify the state of its object a static member function [1]

Notes to self

• Declare a member function that does not modify the state of its object a static member function [1], but only if there is no need to trigger a unit test for that class. As static member functions bypass the constructor, and I use the constructor to start a unit test, making a member function like 'Transmogrify' static, leaves it untested. A member function like 'GetVersion' is fine to keep static, especially if the class has no default constructor

References

1. Bjarne Stroustrup. The C++ Programming Language (4th edition). 2013. ISBN: 978-0-321-56384-2. Chapter 16.4. Advice. page 479: '[11] Make a function that needs access to the representation of a class but needn't be called for a specific object a static member function'

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