LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zposvx()

lapack_int LAPACKE_zposvx ( int  matrix_layout,
char  fact,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double af,
lapack_int  ldaf,
char *  equed,
double *  s,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  rcond,
double *  ferr,
double *  berr 
)

Definition at line 35 of file lapacke_zposvx.c.

42 {
43  lapack_int info = 0;
44  double* rwork = NULL;
45  lapack_complex_double* work = NULL;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_zposvx", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  if( LAPACKE_get_nancheck() ) {
52  /* Optionally check input matrices for NaNs */
53  if( LAPACKE_zpo_nancheck( matrix_layout, uplo, n, a, lda ) ) {
54  return -6;
55  }
56  if( LAPACKE_lsame( fact, 'f' ) ) {
57  if( LAPACKE_zpo_nancheck( matrix_layout, uplo, n, af, ldaf ) ) {
58  return -8;
59  }
60  }
61  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
62  return -12;
63  }
64  if( LAPACKE_lsame( fact, 'f' ) && LAPACKE_lsame( *equed, 'y' ) ) {
65  if( LAPACKE_d_nancheck( n, s, 1 ) ) {
66  return -11;
67  }
68  }
69  }
70 #endif
71  /* Allocate memory for working array(s) */
72  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
73  if( rwork == NULL ) {
75  goto exit_level_0;
76  }
77  work = (lapack_complex_double*)
78  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
79  if( work == NULL ) {
81  goto exit_level_1;
82  }
83  /* Call middle-level interface */
84  info = LAPACKE_zposvx_work( matrix_layout, fact, uplo, n, nrhs, a, lda, af,
85  ldaf, equed, s, b, ldb, x, ldx, rcond, ferr,
86  berr, work, rwork );
87  /* Release memory and exit */
88  LAPACKE_free( work );
89 exit_level_1:
90  LAPACKE_free( rwork );
91 exit_level_0:
92  if( info == LAPACK_WORK_MEMORY_ERROR ) {
93  LAPACKE_xerbla( "LAPACKE_zposvx", info );
94  }
95  return info;
96 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_int LAPACKE_zposvx_work(int matrix_layout, char fact, char uplo, lapack_int n, lapack_int nrhs, lapack_complex_double *a, lapack_int lda, lapack_complex_double *af, lapack_int ldaf, char *equed, double *s, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *x, lapack_int ldx, double *rcond, double *ferr, double *berr, lapack_complex_double *work, double *rwork)
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_zpo_nancheck(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *a, lapack_int lda)
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