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bug #1669: fix PartialPivLU/inverse with zero-sized matrices.

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This commit is contained in:
Gael Guennebaud
2019-01-29 10:27:13 +01:00
parent a2a07e62b9
commit 8a06c699d0
2 changed files with 21 additions and 1 deletions
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17
test/inverse.cpp
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@@ -105,6 +105,22 @@ template<typename MatrixType> void inverse(const MatrixType& m)
}
}
template<typename Scalar>
void inverse_zerosized()
{
Matrix<Scalar,Dynamic,Dynamic> A(0,0);
{
Matrix<Scalar,0,1> b, x;
x = A.inverse() * b;
}
{
Matrix<Scalar,Dynamic,Dynamic> b(0,1), x;
x = A.inverse() * b;
VERIFY_IS_EQUAL(x.rows(), 0);
VERIFY_IS_EQUAL(x.cols(), 1);
}
}
EIGEN_DECLARE_TEST(inverse)
{
int s = 0;
@@ -118,6 +134,7 @@ EIGEN_DECLARE_TEST(inverse)
s = internal::random<int>(50,320);
CALL_SUBTEST_5( inverse(MatrixXf(s,s)) );
TEST_SET_BUT_UNUSED_VARIABLE(s)
CALL_SUBTEST_5( inverse_zerosized<float>() );
s = internal::random<int>(25,100);
CALL_SUBTEST_6( inverse(MatrixXcd(s,s)) );