244     MatrixXd mat1(6,6), mat2(6,6);  in test_evaluators()  local
245     VERIFY_IS_APPROX_EVALUATOR(mat1, MatrixXd::Identity(6,6));  in test_evaluators()
246     VERIFY_IS_APPROX_EVALUATOR(mat2, mat1);  in test_evaluators()
247     copy_using_evaluator(mat2.transpose(), mat1);  in test_evaluators()
248     VERIFY_IS_APPROX(mat2.transpose(), mat1);  in test_evaluators()
256     VERIFY_IS_APPROX_EVALUATOR(mat2, mat1);  in test_evaluators()
326     mat1.setRandom();  in test_evaluators()
329     copy_using_evaluator(matXcd.real(), mat1);  in test_evaluators()
331     matXcd_ref.real() = mat1;  in test_evaluators()
349     VERIFY_IS_APPROX_EVALUATOR(vec1, mat1.rowwise().sum());  in test_evaluators()
350     VERIFY_IS_APPROX_EVALUATOR(vec1, mat1.colwise().sum().transpose());  in test_evaluators()
353     mat1.setRandom(6,6);  in test_evaluators()
356     VERIFY_IS_APPROX_EVALUATOR(arr2, mat1.array());  in test_evaluators()
358     VERIFY_IS_APPROX_EVALUATOR(arr2, mat1.array() + 2);  in test_evaluators()
370     mat2.array() = mat1.array().reverse();  in test_evaluators()
371     VERIFY_IS_APPROX(mat2.array(), mat1.array().reverse());  in test_evaluators()
374     VERIFY_IS_APPROX_EVALUATOR(vec1, mat1.diagonal());  in test_evaluators()
376     VERIFY_IS_APPROX_EVALUATOR(vec1, mat1.diagonal(1));  in test_evaluators()
377     VERIFY_IS_APPROX_EVALUATOR(vec1, mat1.diagonal<-1>());  in test_evaluators()
380     mat2 = mat1;  in test_evaluators()
381     copy_using_evaluator(mat1.diagonal(1), vec1);  in test_evaluators()
383     VERIFY_IS_APPROX(mat1, mat2);  in test_evaluators()
385     copy_using_evaluator(mat1.diagonal<-1>(), mat1.diagonal(1));  in test_evaluators()
387     VERIFY_IS_APPROX(mat1, mat2);  in test_evaluators()
392     MatrixXd mat1, mat2, mat1ref, mat2ref;  in test_evaluators()  local
393     mat1ref = mat1 = MatrixXd::Random(6, 6);  in test_evaluators()
394     mat2ref = mat2 = 2 * mat1 + MatrixXd::Identity(6, 6);  in test_evaluators()
395     swap_using_evaluator(mat1, mat2);  in test_evaluators()
397     VERIFY_IS_APPROX(mat1, mat1ref);  in test_evaluators()
400     swap_using_evaluator(mat1.block(0, 0, 3, 3), mat2.block(3, 3, 3, 3));  in test_evaluators()
402     VERIFY_IS_APPROX(mat1, mat1ref);  in test_evaluators()
405     swap_using_evaluator(mat1.row(2), mat2.col(3).transpose());  in test_evaluators()
406     mat1.row(2).swap(mat2.col(3).transpose());  in test_evaluators()
407     VERIFY_IS_APPROX(mat1, mat1ref);  in test_evaluators()