Answer by trent for Comparing polymorphic types in c++20
This does not look like a problem of polymorphism. Actually, I think that there is any polymorphism at all is a symptom of a data model error.If you have values that identify machines, and values that...
View ArticleAnswer by goodvibration for Comparing polymorphic types in c++20
OK, I see it wasn't mentioned in the answer given by @dfrib, so I'll extend that answer to show it.You could add an abstract (pure virtual) function in the Identifier structure, which returns its...
View ArticleAnswer by dfrib for Comparing polymorphic types in c++20
As an intermediate solution you could re-factor your polymorphic equality operator== to a non-virtual operator== defined in the base class, which polymorphically dispatches to a non-operator virtual...
View ArticleAnswer by scohe001 for Comparing polymorphic types in c++20
You don't have any polymorphism in your code. You can force a dynamic binding of the comparison operator function (polymorphism) by using either Identifier pointers or references.For example, instead...
View ArticleComparing polymorphic types in c++20
I have code that is somewhere between c++17 and c++20. Specifically, we have c++20 enabled on GCC-9 and clang-9, where it is only partially implemented.In code we have quite big hierarchy of...
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