Dynamic cast pointer; returns nullptr when pp is null (const).
Declared in <mrdocs/ADT/Polymorphic.hpp>
template<
class To,
class From>
requires ( std::derived_from<std::remove_cvref_t<To>, std::remove_cvref_t<From>> )
[[nodiscard]]
std::add_pointer_t<std::remove_reference_t<To> const>
cast_or_null(Polymorphic<From> const* pp);Pointer to To when the cast succeeds, otherwise nullptr.
The return value should not be discarded.
| Name | Description |
|---|---|
| pp | A polymorphic value-type. |