meta::destructible

Defined in header <mgs/meta/concepts/destructible.hpp>.

template <typename T>
concept destructible = std::is_nothrow_destructible_v<T>;

Pre-C++20 implementation of the std::destructible concept.

---

Concept emulation

namespace mgs {
namespace meta {

template <typename T>
struct is_destructible { /* ... */ };

template <typename T>
constexpr auto is_destructible_v = is_destructible<T>::value;

template <typename T,
          typename = std::enable_if_t<is_destructible_v<T>>>
using destructible = T;

} // namespace meta
} // namespace mgs

Example

#include <mgs/meta/concepts/destructible.hpp>

using namespace mgs::meta;

namespace {
struct A {
  ~A() noexcept(false) {};
};
}

static_assert(is_destructible_v<int>, "");
static_assert(!is_destructible_v<A>, "");