1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
#include "../Eigen/Core" #ifdef EIGEN_SHOULD_FAIL_TO_BUILD #define CV_QUALIFIER const #else #define CV_QUALIFIER #endif using namespace Eigen; void foo(){ MatrixXf m; Diagonal<CV_QUALIFIER MatrixXf>(m).coeffRef(0) = 1.0f; } int main() {}