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this post was submitted on 05 Sep 2024
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Programming
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This is quite standard, and in fact it's even a safety feature. C++ introduced nullptr defined as an instance of std::nullptr_t explicitly with this in mind.
https://en.cppreference.com/w/cpp/language/nullptr
This approach is also quite basic in monadic types.
With what in mind? Evading
NULL?Languages that make use of references rather than pointers don't have this Dualism. C# has nullable references and nullability analysis, and
nullas a keyword.What does your reasoning mean in that context?
It's not about references vs pointers. You could easily have a language that allowed "null references" (edit: too much C++; of course many languages allow null references, e.g. Javascript) or one that properly separated null pointers out in the type system.
I agree with your point though, using a special
Nullvalue is usually worse than usingOptionor similar. Andnullptr_tdoesn't help with this at all.Not sure I follow you...