std::span<T,Extent>::end
constexpr iterator end() const noexcept; |
Returns an iterator to the element following the last element of the span.
This element acts as a placeholder; attempting to access it results in undefined behavior.
Parameters
(none).
Return value
Iterator to the element following the last element.
Complexity
Constant.
Example
#include <span>
#include <iostream>
void print(std::span<const int> sp)
{
for(auto it = sp.begin(); it != sp.end(); ++it) {
std::cout << *it << ' ';
}
std::cout << '\n';
}
void transmogrify(std::span<int> sp)
{
if (!sp.empty()) {
std::cout << *sp.begin() << '\n';
*sp.begin() = 2;
}
}
int main()
{
int array[] { 1, 3, 4, 5 };
print(array);
transmogrify(array);
print(array);
}
Output:
1 3 4 5 1 2 3 4 5
See also
|
(C++20)
|
returns an iterator to the beginning (public member function) |
|
(C++11)(C++14)
|
returns an iterator to the end of a container or array (function template) |
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