mrdocs::isa_or_null

Return true if pointer is non‐null and referent is of type To.

Synopsis

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]]
bool
isa_or_null(Polymorphic<From> const* pp) noexcept;

Return Value

true if pointer is non‐null and referent is of type To.

Parameters

Name	Description
pp	A polymorphic value‐type.

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