[inplace.vector.cons]

# 23 Containers library [[containers]](./#containers)

## 23.3 Sequence containers [[sequences]](sequences#inplace.vector.cons)

### 23.3.16 Class template inplace_vector [[inplace.vector]](inplace.vector#cons)

#### 23.3.16.2 Constructors [inplace.vector.cons]

[🔗](#lib:inplace_vector,constructor)

`constexpr explicit inplace_vector(size_type n);
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10926)

*Preconditions*: T is *Cpp17DefaultInsertable* into inplace_vector[.](#1.sentence-1)

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10930)

*Effects*: Constructs an inplace_vector with n default-inserted elements[.](#2.sentence-1)

[3](#3)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10934)

*Complexity*: Linear in n[.](#3.sentence-1)

[🔗](#lib:inplace_vector,constructor_)

`constexpr inplace_vector(size_type n, const T& value);
`

[4](#4)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10945)

*Preconditions*: T is *Cpp17CopyInsertable* into inplace_vector[.](#4.sentence-1)

[5](#5)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10949)

*Effects*: Constructs an inplace_vector with n copies of value[.](#5.sentence-1)

[6](#6)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10953)

*Complexity*: Linear in n[.](#6.sentence-1)

[🔗](#lib:inplace_vector,constructor__)

`template<class InputIterator>
  constexpr inplace_vector(InputIterator first, InputIterator last);
`

[7](#7)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10965)

*Effects*: Constructs an inplace_vector equal to the range [first, last)[.](#7.sentence-1)

[8](#8)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10969)

*Complexity*: Linear in distance(first, last)[.](#8.sentence-1)

[🔗](#lib:inplace_vector,constructor___)

`template<[container-compatible-range](container.intro.reqmts#concept:container-compatible-range "23.2.2.1 Introduction [container.intro.reqmts]")<T> R>
  constexpr inplace_vector(from_range_t, R&& rg);
`

[9](#9)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10981)

*Effects*: Constructs an inplace_vector with
the elements of the range rg[.](#9.sentence-1)

[10](#10)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/containers.tex#L10986)

*Complexity*: Linear in ranges​::​distance(rg)[.](#10.sentence-1)