front_inserter is a convenience function template that constructs a std::front_insert_iterator for the container c with the type deduced from the type of the argument.
push_front operation [edit] Return value
A std::front_insert_iterator which can be used to add elements to the beginning of the container c.
[edit] Possible implementation [edit] Example#include <algorithm>
#include <deque>
#include <iostream>
#include <iterator>
#include <vector>
int main()
{
std::vector<int> v{1, 2, 3, 4, 5};
std::deque<int> d;
std::copy(v.begin(), v.end(), std::front_inserter(d));
for (int n : d)
std::cout << n << ' ';
std::cout << '\n';
}
Output:
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