boost array使用

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#include <iostream> #include<boost/array.hpp> int main() {     boost::array<int, 6> arr = {1,2,3,4,5,6};     boost::array<int, 6> arr2 = {7,8,9,10,11,12};     std::copy(arr.begin(), arr.end(), std::ostream_iterator<int>(std::cout, " "));     std::cout<<std::endl;     arr.swap(arr2);     for(size_t i=0;i<arr.size();i++)     {         std::cout<<arr.at(i)<<" ";     }     std::cout<<std::endl;     return 0; }

boost array是一种静态数组，比stl中的vector效率高