[KKKKkkkk1]

With Valgrind, I would say dangling pointers are a solved problem by now. The real debugging headaches in C++ come from stuff like autogenerated constructors, overloading, template specialization, and other features that change semantics without requiring the syntax of the code that experiences the change to reflect that change. My unpopular opinion is that exceptions also fall into this class of dark features.

[comex]

> With Valgrind, I would say dangling pointers are a solved problem by now.

Given the frequency with which use-after-free vulnerabilities are discovered in C++ programs, I’d say they’re not a solved problem. Valgrind is great but it doesn’t help when the only inputs that cause bad behavior are bizarre attacker-generated ones.

[pjmlp]

Only on the platforms that support Valgrind, with teams that bother to use it.

Given that Apple, Microsoft and Google keep doing presentations about such tools at their conferences, and my experience at enterprise level, I would say not so many bother to use them.