diff options
Diffstat (limited to 'Eigen/src/Core/DenseStorageBase.h')
| -rw-r--r-- | Eigen/src/Core/DenseStorageBase.h | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/Eigen/src/Core/DenseStorageBase.h b/Eigen/src/Core/DenseStorageBase.h index ed116d708..7dc8d38c4 100644 --- a/Eigen/src/Core/DenseStorageBase.h +++ b/Eigen/src/Core/DenseStorageBase.h @@ -175,8 +175,14 @@ class DenseStorageBase : public _Base<Derived> && (RowsAtCompileTime == Dynamic || RowsAtCompileTime == rows) && (MaxColsAtCompileTime == Dynamic || MaxColsAtCompileTime >= cols) && (ColsAtCompileTime == Dynamic || ColsAtCompileTime == cols)); - m_storage.resize(rows * cols, rows, cols); - EIGEN_INITIALIZE_BY_ZERO_IF_THAT_OPTION_IS_ENABLED + #ifdef EIGEN_INITIALIZE_MATRICES_BY_ZERO + int size = rows*cols; + bool size_changed = size != this->size(); + m_storage.resize(size, rows, cols); + if(size_changed) EIGEN_INITIALIZE_BY_ZERO_IF_THAT_OPTION_IS_ENABLED + #else + m_storage.resize(rows*cols, rows, cols); + #endif } /** Resizes \c *this to a vector of length \a size @@ -194,11 +200,16 @@ class DenseStorageBase : public _Base<Derived> { EIGEN_STATIC_ASSERT_VECTOR_ONLY(DenseStorageBase) ei_assert(SizeAtCompileTime == Dynamic || SizeAtCompileTime == size); + #ifdef EIGEN_INITIALIZE_MATRICES_BY_ZERO + bool size_changed = size != this->size(); + #endif if(RowsAtCompileTime == 1) m_storage.resize(size, 1, size); else m_storage.resize(size, size, 1); - EIGEN_INITIALIZE_BY_ZERO_IF_THAT_OPTION_IS_ENABLED + #ifdef EIGEN_INITIALIZE_MATRICES_BY_ZERO + if(size_changed) EIGEN_INITIALIZE_BY_ZERO_IF_THAT_OPTION_IS_ENABLED + #endif } /** Resizes the matrix, changing only the number of columns. For the parameter of type NoChange_t, just pass the special value \c NoChange |