LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dsytrs2()

lapack_int LAPACKE_dsytrs2 ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const double *  a,
lapack_int  lda,
const lapack_int ipiv,
double *  b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_dsytrs2.c.

39 {
40  lapack_int info = 0;
41  double* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_dsytrs2", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  /* Optionally check input matrices for NaNs */
48  if( LAPACKE_dsy_nancheck( matrix_layout, uplo, n, a, lda ) ) {
49  return -5;
50  }
51  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
52  return -8;
53  }
54 #endif
55  /* Allocate memory for working array(s) */
56  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
57  if( work == NULL ) {
59  goto exit_level_0;
60  }
61  /* Call middle-level interface */
62  info = LAPACKE_dsytrs2_work( matrix_layout, uplo, n, nrhs, a, lda, ipiv, b,
63  ldb, work );
64  /* Release memory and exit */
65  LAPACKE_free( work );
66 exit_level_0:
67  if( info == LAPACK_WORK_MEMORY_ERROR ) {
68  LAPACKE_xerbla( "LAPACKE_dsytrs2", info );
69  }
70  return info;
71 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_int LAPACKE_dsytrs2_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const double *a, lapack_int lda, const lapack_int *ipiv, double *b, lapack_int ldb, double *work)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_dsy_nancheck(int matrix_layout, char uplo, lapack_int n, const double *a, lapack_int lda)
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