devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
(grafted from 8a06c699d0
)
This commit is contained in:
Gael Guennebaud
2019-01-29 10:27:13 +01:00
parent 7b160dcc82
commit c30beb5974
2 changed files with 21 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
test/inverse.cpp
View File

@@ -92,6 +92,22 @@ 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);
}
}
void test_inverse()
{
int s = 0;
@@ -105,6 +121,7 @@ void 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)) );