std::span::empty

 

C++

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Containers library

array (C++11)

vector

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list

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std::span

Member functions

span::span

span::operator=

Element access

span::operator[]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

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span::first

span::last

span::subspan

Non-member functions

as_bytesas_writable_bytes

Non-member constant

dynamic_extent

Deduction guides

 

constexpr bool empty() const noexcept;

Checks if the span is empty.

Return value

true if the span is empty (i.e., size() == 0); false otherwise.

See also

size	returns the number of elements in the sequence (public member function)