std::vector<T,Allocator>::data (3) - Linux Manuals

std::vector<T,Allocator>::data: std::vector<T,Allocator>::data

NAME

std::vector<T,Allocator>::data - std::vector<T,Allocator>::data

Synopsis

T* data() noexcept; (since C++11)
const T* data() const noexcept; (since C++11)

Returns pointer to the underlying array serving as element storage. The pointer is such that range [data(); data() + size()) is always a valid range, even if the container is empty (data() is not dereferenceable in that case).

Parameters

(none)

Return value

Pointer to the underlying element storage. For non-empty containers, the returned pointer compares equal to the address of the first element.

Complexity

Constant.

Notes

If size() is 0, data() may or may not return a null pointer.