21 Containers library [containers]

21.7 Views [views]

21.7.3 Class template span [views.span]

21.7.3.5 Element access [span.elem]

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constexpr reference operator[](index_type idx) const; constexpr reference operator()(index_type idx) const;
1
#
Requires: 0 <= idx && idx < size().
2
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Effects: Equivalent to: return *(data() + idx);
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constexpr pointer data() const noexcept;
3
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Effects: Equivalent to: return data_­;