diff options
Diffstat (limited to 'eigen/lapack/eigenvalues.cpp')
| -rw-r--r-- | eigen/lapack/eigenvalues.cpp | 27 |
1 files changed, 5 insertions, 22 deletions
diff --git a/eigen/lapack/eigenvalues.cpp b/eigen/lapack/eigenvalues.cpp index a1526eb..921c515 100644 --- a/eigen/lapack/eigenvalues.cpp +++ b/eigen/lapack/eigenvalues.cpp @@ -7,10 +7,10 @@ // Public License v. 2.0. If a copy of the MPL was not distributed // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. -#include "common.h" +#include "lapack_common.h" #include <Eigen/Eigenvalues> -// computes an LU factorization of a general M-by-N matrix A using partial pivoting with row interchanges +// computes eigen values and vectors of a general N-by-N matrix A EIGEN_LAPACK_FUNC(syev,(char *jobz, char *uplo, int* n, Scalar* a, int *lda, Scalar* w, Scalar* /*work*/, int* lwork, int *info)) { // TODO exploit the work buffer @@ -22,24 +22,7 @@ EIGEN_LAPACK_FUNC(syev,(char *jobz, char *uplo, int* n, Scalar* a, int *lda, Sca else if(*n<0) *info = -3; else if(*lda<std::max(1,*n)) *info = -5; else if((!query_size) && *lwork<std::max(1,3**n-1)) *info = -8; - -// if(*info==0) -// { -// int nb = ILAENV( 1, 'SSYTRD', UPLO, N, -1, -1, -1 ) -// LWKOPT = MAX( 1, ( NB+2 )*N ) -// WORK( 1 ) = LWKOPT -// * -// IF( LWORK.LT.MAX( 1, 3*N-1 ) .AND. .NOT.LQUERY ) -// $ INFO = -8 -// END IF -// * -// IF( INFO.NE.0 ) THEN -// CALL XERBLA( 'SSYEV ', -INFO ) -// RETURN -// ELSE IF( LQUERY ) THEN -// RETURN -// END IF - + if(*info!=0) { int e = -*info; @@ -64,14 +47,14 @@ EIGEN_LAPACK_FUNC(syev,(char *jobz, char *uplo, int* n, Scalar* a, int *lda, Sca if(eig.info()==NoConvergence) { - vector(w,*n).setZero(); + make_vector(w,*n).setZero(); if(computeVectors) matrix(a,*n,*n,*lda).setIdentity(); //*info = 1; return 0; } - vector(w,*n) = eig.eigenvalues(); + make_vector(w,*n) = eig.eigenvalues(); if(computeVectors) matrix(a,*n,*n,*lda) = eig.eigenvectors(); |