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[vector.data]

23 Containers library [containers]

23.3 Sequence containers [sequences]

23.3.13 Class template vector [vector]

23.3.13.4 Data [vector.data]

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constexpr T* data() noexcept; constexpr const T* data() const noexcept;

1

Returns: A pointer such that [data(), data() + size()) is a valid range.

For a non-empty vector, data() == addressof(front()) is true.

2

Complexity: Constant time.