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Replaced memcpy & memmove to smart_* alternatives for non-POD scalar types

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Pavel Holoborodko 2013-08-25 18:12:15 +09:00
parent e6462c2ce3
commit 41321e4366
1 changed files with 15 additions and 14 deletions
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29
Eigen/src/SparseCore/SparseBlock.h
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@ -66,13 +66,14 @@ public:
typename XprType::Nested m_matrix;
Index m_outerStart;
const internal::variable_if_dynamic<Index, OuterSize> m_outerSize;
public:
EIGEN_INHERIT_ASSIGNMENT_OPERATORS(BlockImpl)
};
/***************************************************************************
* specialisation for SparseMatrix
* specialization for SparseMatrix
***************************************************************************/
template<typename _Scalar, int _Options, typename _Index, int BlockRows, int BlockCols>
@ -125,7 +126,7 @@ public:
{
typedef typename internal::remove_all<typename SparseMatrixType::Nested>::type _NestedMatrixType;
_NestedMatrixType& matrix = const_cast<_NestedMatrixType&>(m_matrix);;
// This assignement is slow if this vector set is not empty
// This assignment is slow if this vector set is not empty
// and/or it is not at the end of the nonzeros of the underlying matrix.
// 1 - eval to a temporary to avoid transposition and/or aliasing issues
@ -134,7 +135,7 @@ public:
// 2 - let's check whether there is enough allocated memory
Index nnz = tmp.nonZeros();
Index start = m_outerStart==0 ? 0 : matrix.outerIndexPtr()[m_outerStart]; // starting position of the current block
Index end = m_matrix.outerIndexPtr()[m_outerStart+m_outerSize.value()]; // ending posiiton of the current block
Index end = m_matrix.outerIndexPtr()[m_outerStart+m_outerSize.value()]; // ending position of the current block
Index block_size = end - start; // available room in the current block
Index tail_size = m_matrix.outerIndexPtr()[m_matrix.outerSize()] - end;
@ -147,14 +148,14 @@ public:
// realloc manually to reduce copies
typename SparseMatrixType::Storage newdata(m_matrix.data().allocatedSize() - block_size + nnz);
std::memcpy(&newdata.value(0), &m_matrix.data().value(0), start*sizeof(Scalar));
std::memcpy(&newdata.index(0), &m_matrix.data().index(0), start*sizeof(Index));
internal::smart_copy(&m_matrix.data().value(0), &m_matrix.data().value(0) + start, &newdata.value(0));
internal::smart_copy(&m_matrix.data().index(0), &m_matrix.data().index(0) + start, &newdata.index(0));
std::memcpy(&newdata.value(start), &tmp.data().value(0), nnz*sizeof(Scalar));
std::memcpy(&newdata.index(start), &tmp.data().index(0), nnz*sizeof(Index));
internal::smart_copy(&tmp.data().value(0), &tmp.data().value(0) + nnz, &newdata.value(start));
internal::smart_copy(&tmp.data().index(0), &tmp.data().index(0) + nnz, &newdata.index(start));
std::memcpy(&newdata.value(start+nnz), &matrix.data().value(end), tail_size*sizeof(Scalar));
std::memcpy(&newdata.index(start+nnz), &matrix.data().index(end), tail_size*sizeof(Index));
internal::smart_copy(&matrix.data().value(end), &matrix.data().value(end) + tail_size, &newdata.value(start+nnz));
internal::smart_copy(&matrix.data().index(end), &matrix.data().index(end) + tail_size, &newdata.index(start+nnz));
newdata.resize(m_matrix.outerIndexPtr()[m_matrix.outerSize()] - block_size + nnz);
@ -165,11 +166,11 @@ public:
// no need to realloc, simply copy the tail at its respective position and insert tmp
matrix.data().resize(start + nnz + tail_size);
std::memmove(&matrix.data().value(start+nnz), &matrix.data().value(end), tail_size*sizeof(Scalar));
std::memmove(&matrix.data().index(start+nnz), &matrix.data().index(end), tail_size*sizeof(Index));
internal::smart_memmove(&matrix.data().value(end), &matrix.data().value(end) + tail_size, &matrix.data().value(start + nnz));
internal::smart_memmove(&matrix.data().index(end), &matrix.data().index(end) + tail_size, &matrix.data().index(start + nnz));
std::memcpy(&matrix.data().value(start), &tmp.data().value(0), nnz*sizeof(Scalar));
std::memcpy(&matrix.data().index(start), &tmp.data().index(0), nnz*sizeof(Index));
internal::smart_copy(&tmp.data().value(0), &tmp.data().value(0) + nnz, &matrix.value(start));
internal::smart_copy(&tmp.data().index(0), &tmp.data().index(0) + nnz, &matrix.index(start));
}
// update innerNonZeros