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.
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 <algorithm>
#include <iostream>
#include <iterator>
#include <vector>
int main()
{
std::vector<int> 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[edit] See also
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