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Add evaluator/assignment to TriangularView expressions

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This commit is contained in:
Gael Guennebaud
2013-12-02 14:06:17 +01:00
parent 27ca9437a1
commit 626821b0e3
2 changed files with 350 additions and 2 deletions
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35
test/evaluators.cpp
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@@ -3,6 +3,10 @@
#define EIGEN_ENABLE_EVALUATORS
#endif
#ifdef EIGEN_TEST_EVALUATORS
#undef EIGEN_TEST_EVALUATORS
#endif
#include "main.h"
namespace Eigen {
@@ -101,7 +105,7 @@ void test_evaluators()
copy_using_evaluator(w.transpose(), v_const);
VERIFY_IS_APPROX(w,v_const.transpose().eval());
#if 0
// Testing Array evaluator
{
ArrayXXf a(2,3);
@@ -401,4 +405,33 @@ void test_evaluators()
arr_ref.row(1) /= (arr_ref.row(2) + 1);
VERIFY_IS_APPROX(arr, arr_ref);
}
#endif
{
// test triangular shapes
MatrixXd A = MatrixXd::Random(6,6), B(6,6), C(6,6);
A.setRandom();B.setRandom();
VERIFY_IS_APPROX_EVALUATOR2(B, A.triangularView<Upper>(), MatrixXd(A.triangularView<Upper>()));
A.setRandom();B.setRandom();
VERIFY_IS_APPROX_EVALUATOR2(B, A.triangularView<UnitLower>(), MatrixXd(A.triangularView<UnitLower>()));
A.setRandom();B.setRandom();
VERIFY_IS_APPROX_EVALUATOR2(B, A.triangularView<UnitUpper>(), MatrixXd(A.triangularView<UnitUpper>()));
A.setRandom();B.setRandom();
C = B; C.triangularView<Upper>() = A;
copy_using_evaluator(B.triangularView<Upper>(), A);
VERIFY(B.isApprox(C) && "copy_using_evaluator(B.triangularView<Upper>(), A)");
A.setRandom();B.setRandom();
C = B; C.triangularView<Lower>() = A.triangularView<Lower>();
copy_using_evaluator(B.triangularView<Lower>(), A.triangularView<Lower>());
VERIFY(B.isApprox(C) && "copy_using_evaluator(B.triangularView<Lower>(), A.triangularView<Lower>())");
A.setRandom();B.setRandom();
C = B; C.triangularView<Lower>() = A.triangularView<Upper>().transpose();
copy_using_evaluator(B.triangularView<Lower>(), A.triangularView<Upper>().transpose());
VERIFY(B.isApprox(C) && "copy_using_evaluator(B.triangularView<Lower>(), A.triangularView<Lower>().transpose())");
}
}