std::span<T,Extent>::last

 

C++

Language

Standard Library Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

 

Containers library

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

map

multimap

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

stack

queue

priority_queue

span (C++20)

 

std::span

Member functions

span::span

span::operator=

Element access

span::front

span::back

span::operator[]

span::data

Iterators

span::beginspan::cbegin

span::endspan::cend

span::rbeginspan::crbegin

span::rendspan::crend

Observers

span::empty

span::size

span::size_bytes

Subviews

span::first

span::last

span::subspan

Non-member functions

as_bytesas_writable_bytes

begin(std::span)end(std::span)

get

Non-member constant

dynamic_extent

Helper classes

tuple_size

tuple_element

Deduction guides

 

template< std::size_t Count > constexpr std::span<element_type, Count> last() const;
constexpr std::span<element_type, std::dynamic_extent> last( std::size_t Count ) const;

Obtains a span that is a view over the last Count elements of this span. The behavior is undefined if Count > size().

Return value

A span r that is a view over the last Count elements of *this, such that r.data() == this->data() + (this->size() - Count) && r.size() == Count.

See also

first	obtains a subspan consisting of the first N elements of the sequence (public member function)
subspan	obtains a subspan (public member function)