[specialized.destroy]

# 26 Algorithms library [[algorithms]](./#algorithms)

## 26.11 Specialized <memory> algorithms [[specialized.algorithms]](specialized.algorithms#specialized.destroy)

### 26.11.9 destroy [specialized.destroy]

[🔗](#lib:destroy_at)

`template<class T>
  constexpr void destroy_at(T* location);
namespace ranges {
  template<[destructible](concept.destructible#concept:destructible "18.4.10 Concept destructible [concept.destructible]") T>
    constexpr void destroy_at(T* location) noexcept;
}
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/algorithms.tex#L14225)

*Effects*: 

- [(1.1)](#1.1)

  If T is an array type, equivalent to destroy(begin(*location), end(*location))[.](#1.1.sentence-1)

- [(1.2)](#1.2)

  Otherwise, equivalent to location->~T()[.](#1.2.sentence-1)

[🔗](#lib:destroy)

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

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/algorithms.tex#L14242)

*Effects*: Equivalent to:for (; first != last; ++first) destroy_at(addressof(*first));

[🔗](#lib:destroy_)

`namespace ranges {
  template<[nothrow-input-iterator](special.mem.concepts#concept:nothrow-input-iterator "26.11.2 Special memory concepts [special.mem.concepts]") I, [nothrow-sentinel-for](special.mem.concepts#concept:nothrow-sentinel-for "26.11.2 Special memory concepts [special.mem.concepts]")<I> S>
    requires [destructible](concept.destructible#concept:destructible "18.4.10 Concept destructible [concept.destructible]")<iter_value_t<I>>
    constexpr I destroy(I first, S last) noexcept;
  template<[nothrow-input-range](special.mem.concepts#concept:nothrow-input-range "26.11.2 Special memory concepts [special.mem.concepts]") R>
    requires [destructible](concept.destructible#concept:destructible "18.4.10 Concept destructible [concept.destructible]")<range_value_t<R>>
    constexpr borrowed_iterator_t<R> destroy(R&& r) noexcept;
}
`

[3](#3)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/algorithms.tex#L14264)

*Effects*: Equivalent to:for (; first != last; ++first) destroy_at(addressof(*first));return first;

[🔗](#lib:destroy_n)

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

[4](#4)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/algorithms.tex#L14281)

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

[🔗](#lib:destroy_n_)

`namespace ranges {
  template<[nothrow-input-iterator](special.mem.concepts#concept:nothrow-input-iterator "26.11.2 Special memory concepts [special.mem.concepts]") I>
    requires [destructible](concept.destructible#concept:destructible "18.4.10 Concept destructible [concept.destructible]")<iter_value_t<I>>
    constexpr I destroy_n(I first, iter_difference_t<I> n) noexcept;
}
`

[5](#5)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/algorithms.tex#L14301)

*Effects*: Equivalent to:return destroy(counted_iterator(std::move(first), n), default_sentinel).base();