block_nonconst_ctor_on_const_xpr_2.cpp

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#include "../Eigen/Core"
 
#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
#define CV_QUALIFIER const
#else
#define CV_QUALIFIER
#endif
 
using namespace Eigen;
 
void foo(CV_QUALIFIER Matrix3d &m){
    // row/column constructor
    Block<Matrix3d,3,1> b(m,0);
}
 
int main() {}