std::destructible

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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)

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

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

[edit]Notes

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