[istream.assign]

# 31 Input/output library [[input.output]](./#input.output)

## 31.7 Formatting and manipulators [[iostream.format]](iostream.format#istream.assign)

### 31.7.5 Input streams [[input.streams]](input.streams#istream.assign)

#### 31.7.5.2 Class template basic_istream [[istream]](istream#assign)

#### 31.7.5.2.3 Assignment and swap [istream.assign]

[🔗](#lib:operator=,basic_istream)

`basic_istream& operator=(basic_istream&& rhs);
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L4479)

*Effects*: Equivalent to swap(rhs)[.](#1.sentence-1)

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L4483)

*Returns*: *this[.](#2.sentence-1)

[🔗](#lib:swap,basic_istream)

`void swap(basic_istream& rhs);
`

[3](#3)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L4494)

*Effects*: Calls basic_ios<charT, traits>​::​swap(rhs)[.](#3.sentence-1)

Exchanges the values returned by gcount() andrhs.gcount()[.](#3.sentence-2)