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std::vector::capacity

size_type capacity() const;

Returns the number of elements that the container has currently allocated space for.

Parameters

(none).

Return value

Capacity of the currently allocated storage.

Exceptions

(none) (until C++11)
noexcept specification:
noexcept
(since C++11)

Complexity

Constant.

See also

returns the number of elements
(public member function)
reserves storage
(public member function)

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