devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Add sub/super-diagonal expression (read/write) as a trivial extension of

Browse Source 
DiagonalCoeffs. The current API is simply:
  m.diagonal<1>() => 1st super diagonal
  m.diagonal<-2>() => the 2nd sub diagonal
I'll add a code snippet once we agree on this API.
This commit is contained in:
Gael Guennebaud
2009-02-05 18:37:21 +00:00
parent 9637af5ecf
commit 910b387438
5 changed files with 60 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Eigen/src/Core/util/ForwardDeclarations.h
View File

@@ -48,7 +48,7 @@ template<typename Lhs, typename Rhs, int ProductMode> class Product;
template<typename CoeffsVectorType, typename Derived> class DiagonalMatrixBase;
template<typename CoeffsVectorType> class DiagonalMatrixWrapper;
template<typename _Scalar, int _Size> class DiagonalMatrix;
template<typename MatrixType> class DiagonalCoeffs;
template<typename MatrixType, int DiagId=0> class DiagonalCoeffs;
template<typename MatrixType, int PacketAccess = AsRequested> class Map;
template<typename MatrixType, unsigned int Mode> class Part;
template<typename MatrixType, unsigned int Mode> class Extract;

2
Eigen/src/Core/util/Macros.h
View File

@@ -41,7 +41,7 @@
// because extra memory must be allocated for bookkeeping).
// if the compiler is not GNUC, just cross fingers that the architecture isn't too exotic, because we don't want
// to keep track of all the different preprocessor symbols for all compilers.
#if !defined(__GNUC__) || defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__ia64__)
#if (!defined(__GNUC__)) || defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__ia64__)
#define EIGEN_ARCH_WANTS_ALIGNMENT 1
#else
#ifdef EIGEN_VECTORIZE