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

From cppreference.com

< cpp‎ | container‎ | span

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span::span
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span::front
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span::beginspan::cbegin (C++23)
span::endspan::cend (C++23)
span::rbeginspan::crbegin (C++23)
span::rendspan::crend (C++23)
Observers
span::empty
span::size