On 7/24/17 11:45 AM, Houdini wrote:
On Monday, 24 July 2017 at 15:41:33 UTC, Steven Schveighoffer wrote:
Because types with inheritance generally don't work right if you pass
by value (i.e. the slicing problem).
structs don't support inheritance or virtual functions, so they can be
safely passed by value.
But in C++, we pass them by reference also to avoid copies (const &).
The potential polymorphic usage is not the only point to consider.
In C++ class and struct are pretty much interchangeable, so technically,
class is a wasted keyword for default visibility.
In D, I would use classes for any time I need polymorphism, and use
structs otherwise.
-Steve
