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bug #1516: add assertion for out-of-range diagonal index in MatrixBase::diagonal(i)

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This commit is contained in:
Gael Guennebaud 2018-04-03 16:15:43 +02:00
parent 407e3e2621
commit 8d0ffe3655
2 changed files with 11 additions and 3 deletions
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5
Eigen/src/Core/Diagonal.h
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@ -70,7 +70,10 @@ template<typename MatrixType, int _DiagIndex> class Diagonal
EIGEN_DENSE_PUBLIC_INTERFACE(Diagonal)
EIGEN_DEVICE_FUNC
explicit inline Diagonal(MatrixType& matrix, Index a_index = DiagIndex) : m_matrix(matrix), m_index(a_index) {}
explicit inline Diagonal(MatrixType& matrix, Index a_index = DiagIndex) : m_matrix(matrix), m_index(a_index)
{
eigen_assert( a_index <= m_matrix.cols() && -a_index <= m_matrix.rows() );
}
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(Diagonal)

9
test/diagonal.cpp
View File

@ -66,6 +66,9 @@ template<typename MatrixType> void diagonal(const MatrixType& m)
m2.diagonal(N2).coeffRef(0) = Scalar(2)*s1;
VERIFY_IS_APPROX(m2.diagonal(N2).coeff(0), Scalar(2)*s1);
}
VERIFY( m1.diagonal( cols).size()==0 );
VERIFY( m1.diagonal(-rows).size()==0 );
}
template<typename MatrixType> void diagonal_assert(const MatrixType& m) {
@ -81,6 +84,9 @@ template<typename MatrixType> void diagonal_assert(const MatrixType& m) {
VERIFY_RAISES_ASSERT( m1.array() *= m1.diagonal().array() );
VERIFY_RAISES_ASSERT( m1.array() /= m1.diagonal().array() );
}
VERIFY_RAISES_ASSERT( m1.diagonal(cols+1) );
VERIFY_RAISES_ASSERT( m1.diagonal(-(rows+1)) );
}
void test_diagonal()
@ -95,7 +101,6 @@ void test_diagonal()
CALL_SUBTEST_2( diagonal(MatrixXcd(internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<int>(1,EIGEN_TEST_MAX_SIZE))) );
CALL_SUBTEST_1( diagonal(MatrixXf(internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<int>(1,EIGEN_TEST_MAX_SIZE))) );
CALL_SUBTEST_1( diagonal(Matrix<float,Dynamic,4>(3, 4)) );
CALL_SUBTEST_1( diagonal_assert(MatrixXf(internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<int>(1,EIGEN_TEST_MAX_SIZE))) );
}
CALL_SUBTEST_1( diagonal_assert(MatrixXf(internal::random<int>(1,EIGEN_TEST_MAX_SIZE), internal::random<int>(1,EIGEN_TEST_MAX_SIZE))) );
}