LAPACK  3.7.1
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  /* Optionally check input matrices for NaNs */
55  if( LAPACKE_dge_nancheck( matrix_layout, n, n, a, lda ) ) {
56  return -6;
57  }
58  if( LAPACKE_lsame( fact, 'f' ) ) {
59  if( LAPACKE_dge_nancheck( matrix_layout, n, n, af, ldaf ) ) {
60  return -8;
61  }
62  }
63  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
64  return -14;
65  }
66  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
67  LAPACKE_lsame( *equed, 'c' ) ) ) {
68  if( LAPACKE_d_nancheck( n, c, 1 ) ) {
69  return -13;
70  }
71  }
72  if( nparams>0 ) {
73  if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
74  return -25;
75  }
76  }
77  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
78  LAPACKE_lsame( *equed, 'r' ) ) ) {
79  if( LAPACKE_d_nancheck( n, r, 1 ) ) {
80  return -12;
81  }
82  }
83 #endif
84  /* Allocate memory for working array(s) */
85  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
86  if( iwork == NULL ) {
88  goto exit_level_0;
89  }
90  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
91  if( work == NULL ) {
93  goto exit_level_1;
94  }
95  /* Call middle-level interface */
96  info = LAPACKE_dgesvxx_work( matrix_layout, fact, trans, n, nrhs, a, lda, af,
97  ldaf, ipiv, equed, r, c, b, ldb, x, ldx, rcond,
98  rpvgrw, berr, n_err_bnds, err_bnds_norm,
99  err_bnds_comp, nparams, params, work, iwork );
100  /* Release memory and exit */
101  LAPACKE_free( work );
102 exit_level_1:
103  LAPACKE_free( iwork );
104 exit_level_0:
105  if( info == LAPACK_WORK_MEMORY_ERROR ) {
106  LAPACKE_xerbla( "LAPACKE_dgesvxx", info );
107  }
108  return info;
109 }
#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
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