Problem with std::shared_ptr<std::vector<T>> as argument in v2.2.0

[pschella]

Using std::shared_ptr<std::vector<T>> as an argument (or return value) used to work in v2.1.1, but now gives an error:

include/pybind11/cast.h:1378:5: error: static_assert failed "Holder classes are only supported for custom types" static_assert(std::is_base_of<base, type_caster<type>>::value.

[dean0x7d]

Did this actually work or just compile in v2.1.1? As far as I know, it never worked, it's just that it was a run-time error in v2.1 and now it's a compile-time error in v2.2. There is an open issue about it: #787.

[pschella]

Ah, that could be. It is part of a long list of overloads that may not actually be used. Let me check.