LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dgghrd()

lapack_int LAPACKE_dgghrd ( int  matrix_layout,
char  compq,
char  compz,
lapack_int  n,
lapack_int  ilo,
lapack_int  ihi,
double *  a,
lapack_int  lda,
double *  b,
lapack_int  ldb,
double *  q,
lapack_int  ldq,
double *  z,
lapack_int  ldz 
)

Definition at line 36 of file lapacke_dgghrd.c.

41 {
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_dgghrd", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  /* Optionally check input matrices for NaNs */
48  if( LAPACKE_dge_nancheck( matrix_layout, n, n, a, lda ) ) {
49  return -7;
50  }
51  if( LAPACKE_dge_nancheck( matrix_layout, n, n, b, ldb ) ) {
52  return -9;
53  }
54  if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
55  if( LAPACKE_dge_nancheck( matrix_layout, n, n, q, ldq ) ) {
56  return -11;
57  }
58  }
59  if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
60  if( LAPACKE_dge_nancheck( matrix_layout, n, n, z, ldz ) ) {
61  return -13;
62  }
63  }
64 #endif
65  return LAPACKE_dgghrd_work( matrix_layout, compq, compz, n, ilo, ihi, a, lda,
66  b, ldb, q, ldq, z, ldz );
67 }
lapack_int LAPACKE_dgghrd_work(int matrix_layout, char compq, char compz, lapack_int n, lapack_int ilo, lapack_int ihi, double *a, lapack_int lda, double *b, lapack_int ldb, double *q, lapack_int ldq, double *z, lapack_int ldz)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
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