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detect and implement inplace permutations

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This commit is contained in:
Gael Guennebaud
2010-02-25 16:30:58 +01:00
parent d9ca0c0d36
commit 959a1b5d63
6 changed files with 78 additions and 40 deletions
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19
test/permutationmatrices.cpp
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@@ -86,6 +86,23 @@ template<typename MatrixType> void permutationmatrices(const MatrixType& m)
identityp.setIdentity(rows);
VERIFY_IS_APPROX(m_original, identityp*m_original);
// check inplace permutations
m_permuted = m_original;
m_permuted = lp.inverse() * m_permuted;
VERIFY_IS_APPROX(m_permuted, lp.inverse()*m_original);
m_permuted = m_original;
m_permuted = m_permuted * rp.inverse();
VERIFY_IS_APPROX(m_permuted, m_original*rp.inverse());
m_permuted = m_original;
m_permuted = lp * m_permuted;
VERIFY_IS_APPROX(m_permuted, lp*m_original);
m_permuted = m_original;
m_permuted = m_permuted * rp;
VERIFY_IS_APPROX(m_permuted, m_original*rp);
if(rows>1 && cols>1)
{
lp2 = lp;
@@ -114,7 +131,7 @@ void test_permutationmatrices()
CALL_SUBTEST_2( permutationmatrices(Matrix3f()) );
CALL_SUBTEST_3( permutationmatrices(Matrix<double,3,3,RowMajor>()) );
CALL_SUBTEST_4( permutationmatrices(Matrix4d()) );
CALL_SUBTEST_5( permutationmatrices(Matrix<double,4,6>()) );
CALL_SUBTEST_5( permutationmatrices(Matrix<double,40,60>()) );
CALL_SUBTEST_6( permutationmatrices(Matrix<double,Dynamic,Dynamic,RowMajor>(20, 30)) );
CALL_SUBTEST_7( permutationmatrices(MatrixXcf(15, 10)) );
}