25 Algorithms library [algorithms]

25.11 Specialized <memory> algorithms [specialized.algorithms]

25.11.8 destroy [specialized.destroy]

template<class T>
  constexpr void destroy_at(T* location);
namespace ranges {
  template<destructible T>
    constexpr void destroy_at(T* location) noexcept;
}

Effects:

(1.1)
If T is an array type, equivalent to destroy(begin(*location), end(*location)).
(1.2)
Otherwise, equivalent to location->~T().

🔗

template<class NoThrowForwardIterator>
  constexpr void destroy(NoThrowForwardIterator first, NoThrowForwardIterator last);

Effects: Equivalent to:

for (; first != last; ++first)
  destroy_at(addressof(*first));

🔗

namespace ranges {
  template<no-throw-input-iterator I, no-throw-sentinel<I> S>
      requires destructible<iter_value_t<I>>
    constexpr I destroy(I first, S last) noexcept;
  template<no-throw-input-range R>
      requires destructible<range_value_t<R>>
    constexpr borrowed_iterator_t<R> destroy(R&& r) noexcept;
}

Effects: Equivalent to:

for (; first != last; ++first)
  destroy_at(addressof(*first));
return first;

🔗

template<class NoThrowForwardIterator, class Size>
  constexpr NoThrowForwardIterator destroy_n(NoThrowForwardIterator first, Size n);

Effects: Equivalent to:

for (; n > 0; (void)++first, --n)
  destroy_at(addressof(*first));
return first;

🔗

namespace ranges {
  template<no-throw-input-iterator I>
      requires destructible<iter_value_t<I>>
    constexpr I destroy_n(I first, iter_difference_t<I> n) noexcept;
}

Effects: Equivalent to:

return destroy(counted_iterator(first, n), default_sentinel).base();