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Completeness of C ++ Member Initialization List

should class member initialization lists in C ++ be completed? or can they just initialize one or two of the given element in the class?

early!

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They do not have to be complete. You can leave the base classes and POD types , which are constructive by default, POD types, however, remain uninitialized.
Obviously, persistent members and links must be initialized in the member initialization list.

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inthas a constructor, see the Stroustrup section. C ++ programming language. 6.2.8.

int j = int();

j 0 ( 0 , , int() 0. , .

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, - , , ( ).

, , , . getcha - , float .., , undefined.

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Source: https://habr.com/ru/post/1756086/

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