std::array<T,N>::size
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Tables
std::array
constexpr size_type size() const noexcept;
(since C++11)
Returns the number of elements in the container.
Contents
[edit] Return value
std::distance (begin(), end())
[edit] Complexity
Constant.
[edit] Example
The following code uses size
to display the number of elements in a std::array :
Run this code
#include <array> #include <iostream> int main() { std::array <int, 4> nums{1, 3, 5, 7}; std::cout << "nums contains " << nums.size() << " elements.\n"; }
Output:
nums contains 4 elements.