std::back_inserter - cppreference.com (original) (raw)
back_inserter is a convenience function template that constructs a std::back_insert_iterator for the container c with the type deduced from the type of the argument.
[edit] Parameters
| c | - | container that supports a push_back operation |
|---|
[edit] Return value
A std::back_insert_iterator which can be used to add elements to the end of the container c.
[edit] Possible implementation
[edit] Example
#include #include #include #include int main() { std::vector v{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; std::fill_n(std::back_inserter(v), 3, -1); for (int n : v) std::cout << n << ' '; std::cout << '\n'; }
Output:
1 2 3 4 5 6 7 8 9 10 -1 -1 -1