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Multiple ChoiceIntermediate 45s

Aggregate initialization rules

Which class qualifies as an aggregate in C++17 (eligible for brace aggregate init)?
Options
  1. 1Any class at all, as long as it happens to declare some form of default constructor.
  2. 2One with no user-provided/deduced constructors, no private/protected non-static data members, no virtual functions, and no virtual/private/protected base classes.
  3. 3Any class whose members are all public, even if it declares its own user-defined constructors.
  4. 4Only POD structs that have no constructors of any kind and whose members are all trivial.
cppaggregate-initinitialization

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