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* remove ei_block_direct_access_status

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* remove HasDirectAccess / NoDirectAccess constants
This commit is contained in:
Benoit Jacob
2010-04-23 11:36:22 -04:00
parent 58e7297859
commit a16ba80bfa
9 changed files with 25 additions and 33 deletions
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9
Eigen/src/Core/util/ForwardDeclarations.h
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@@ -49,17 +49,16 @@ template<typename ExpressionType> class NestByValue;
template<typename ExpressionType> class ForceAlignedAccess;
template<typename ExpressionType> class SwapWrapper;
// MSVC has a big bug: when the expression ei_traits<MatrixType>::Flags&DirectAccessBit ? HasDirectAccess : NoDirectAccess
// MSVC has a big bug: when the expression ei_traits<MatrixType>::Flags&DirectAccessBit ? 1 : 0
// is used as default template parameter value here, it gets mis-evaluated as just ei_traits<MatrixType>::Flags
// Moreover, adding brackets tends to give compilation errors with MSVC.
// Solution: defer that to a helper struct.
template<typename XprType>
struct ei_block_direct_access_status
template<typename Derived> struct ei_has_direct_access
{
enum { ret = ei_traits<XprType>::Flags&DirectAccessBit ? HasDirectAccess : NoDirectAccess };
enum { ret = (ei_traits<Derived>::Flags & DirectAccessBit) ? 1 : 0 };
};
template<typename XprType, int BlockRows=Dynamic, int BlockCols=Dynamic,
int _DirectAccessStatus = ei_block_direct_access_status<XprType>::ret> class Block;
bool HasDirectAccess = ei_has_direct_access<XprType>::ret> class Block;
template<typename MatrixType, int Size=Dynamic> class VectorBlock;
template<typename MatrixType> class Transpose;