std::destructible

 

C++

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Concepts library

Core language concepts same_as (C++20) derived_from (C++20) convertible_to (C++20) common_reference_with (C++20) common_with (C++20) integral (C++20) signed_integral (C++20) unsigned_integral (C++20) floating_point (C++20) swappableswappable_with (C++20)(C++20) destructible (C++20) constructible_from (C++20) default_initializable (C++20)   move_constructible (C++20) copy_constructible (C++20) assignable_from (C++20)

Comparison concepts equality_comparableequality_comparable_with (C++20)(C++20) totally_orderedtotally_ordered_with (C++20)(C++20) Object concepts movable (C++20) copyable (C++20) semiregular (C++20) regular (C++20) Callable concepts invocableregular_invocable (C++20)(C++20) predicate (C++20) relation (C++20) equivalence_relation (C++20) strict_weak_order (C++20)

Exposition-only concepts boolean-testable  (C++20)

 

Defined in header <concepts>
template<class T > concept destructible =std::is_nothrow_destructible_v<T>;		(since C++20)

The concept destructible specifies the concept of all types whose instances can safely be destroyed at the end of their lifetime (including reference types).

Notes

Unlike the Destructible named requirement, std::destructible requires the destructor to be noexcept(true), not merely non-throwing when invoked, and allows reference types and array types.

References

• C++23 standard (ISO/IEC 14882:2024):

• 18.4.10 Concept destructible [concept.destructible]

• C++20 standard (ISO/IEC 14882:2020):

• 18.4.10 Concept destructible [concept.destructible]

See also

is_destructibleis_trivially_destructibleis_nothrow_destructible (C++11)(C++11)(C++11)

checks if a type has a non-deleted destructor (class template)