Help to understand what a class without data is, and where it can / should be used.
2 answers
For example, a class without data members can define an interface for its derived classes. That is, such a class can contain only declarations of methods (virtual, non-virtual, static).
Or a class can be a container for some methods, most often static ones.
Vlad from Moscow Vlad from Moscow
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- Now there is a tendency of library static functions to be located in classes. For example in js there is a class Math which contains mat-methods but does not contain data. - nick_n_a
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Help to understand what a class without data is, and where it can / should be used.
Can be used in meta-programming. Although it is customary to use structures to implement the SFINAE paradigm.
Majestio Majestio
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