map_on_const_type_actually_const_0.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(float *ptr){
    Map<CV_QUALIFIER MatrixXf>(ptr, 1, 1).coeffRef(0,0) = 1.0f;
}
 
int main() {}