mirror of
https://gitlab.com/libeigen/eigen.git
synced 2026-04-10 11:34:33 +08:00
#include<Eigen/Core>
int main()
{
Eigen::Matrix4f m;
m <<1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16;
m.col(0).swap(m.col(1));
std::cout << m << std::endl;
}
when the fast unaligned stores are used, the column is copied instead of being swapped.