Difference between revisions of "cpp/iterator/front inserter"
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Revision as of 19:37, 19 April 2012
Template:cpp/iterator/sidebar Template:ddcl list begin <tr class="t-dsc-header">
<td>Defined in header
</td>
<iterator>
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<td class="t-dcl-nopad">template< class Container >
std::front_insert_iterator<Container> front_inserter( Container& c);
</td>
std::front_insert_iterator<Container> front_inserter( Container& c);
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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.
Contents |
Parameters
| c | - | container that supports a push_front operation
|
Return value
A std::front_insert_iterator which can be used to add elements to the beginning of the container c
Possible implementation
Example
Run this code
#include <iostream> #include <deque> #include <algorithm> #include <iterator> int main() { std::deque<int> v{1,2,3,4,5,6,7,8,9,10}; std::fill_n(std::front_inserter(v), 3, -1); for(int n : v) std::cout << n << ' '; }
Output:
-1 -1 -1 1 2 3 4 5 6 7 8 9 10
