LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dgesvxx()

lapack_int LAPACKE_dgesvxx ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  nrhs,
double *  a,
lapack_int  lda,
double *  af,
lapack_int  ldaf,
lapack_int ipiv,
char *  equed,
double *  r,
double *  c,
double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
double *  rcond,
double *  rpvgrw,
double *  berr,
lapack_int  n_err_bnds,
double *  err_bnds_norm,
double *  err_bnds_comp,
lapack_int  nparams,
double *  params 
)

Definition at line 36 of file lapacke_dgesvxx.c.

45 {
46  lapack_int info = 0;
47  lapack_int* iwork = NULL;
48  double* work = NULL;
49  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
50  LAPACKE_xerbla( "LAPACKE_dgesvxx", -1 );
51  return -1;
52  }
53 #ifndef LAPACK_DISABLE_NAN_CHECK
54  if( LAPACKE_get_nancheck() ) {
55  /* Optionally check input matrices for NaNs */
56  if( LAPACKE_dge_nancheck( matrix_layout, n, n, a, lda ) ) {
57  return -6;
58  }
59  if( LAPACKE_lsame( fact, 'f' ) ) {
60  if( LAPACKE_dge_nancheck( matrix_layout, n, n, af, ldaf ) ) {
61  return -8;
62  }
63  }
64  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
65  return -14;
66  }
67  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
68  LAPACKE_lsame( *equed, 'c' ) ) ) {
69  if( LAPACKE_d_nancheck( n, c, 1 ) ) {
70  return -13;
71  }
72  }
73  if( nparams>0 ) {
74  if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
75  return -25;
76  }
77  }
78  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
79  LAPACKE_lsame( *equed, 'r' ) ) ) {
80  if( LAPACKE_d_nancheck( n, r, 1 ) ) {
81  return -12;
82  }
83  }
84  }
85 #endif
86  /* Allocate memory for working array(s) */
87  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
88  if( iwork == NULL ) {
90  goto exit_level_0;
91  }
92  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
93  if( work == NULL ) {
95  goto exit_level_1;
96  }
97  /* Call middle-level interface */
98  info = LAPACKE_dgesvxx_work( matrix_layout, fact, trans, n, nrhs, a, lda, af,
99  ldaf, ipiv, equed, r, c, b, ldb, x, ldx, rcond,
100  rpvgrw, berr, n_err_bnds, err_bnds_norm,
101  err_bnds_comp, nparams, params, work, iwork );
102  /* Release memory and exit */
103  LAPACKE_free( work );
104 exit_level_1:
105  LAPACKE_free( iwork );
106 exit_level_0:
107  if( info == LAPACK_WORK_MEMORY_ERROR ) {
108  LAPACKE_xerbla( "LAPACKE_dgesvxx", info );
109  }
110  return info;
111 }
#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
lapack_int LAPACKE_dgesvxx_work(int matrix_layout, char fact, char trans, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *af, lapack_int ldaf, lapack_int *ipiv, char *equed, double *r, double *c, double *b, lapack_int ldb, double *x, lapack_int ldx, double *rcond, double *rpvgrw, double *berr, lapack_int n_err_bnds, double *err_bnds_norm, double *err_bnds_comp, lapack_int nparams, double *params, double *work, lapack_int *iwork)
#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_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
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)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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