LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgtsvx()

lapack_int LAPACKE_zgtsvx ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_double dl,
const lapack_complex_double d,
const lapack_complex_double du,
lapack_complex_double dlf,
lapack_complex_double df,
lapack_complex_double duf,
lapack_complex_double du2,
lapack_int ipiv,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  rcond,
double *  ferr,
double *  berr 
)

Definition at line 36 of file lapacke_zgtsvx.c.

48 {
49  lapack_int info = 0;
50  double* rwork = NULL;
51  lapack_complex_double* work = NULL;
52  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
53  LAPACKE_xerbla( "LAPACKE_zgtsvx", -1 );
54  return -1;
55  }
56 #ifndef LAPACK_DISABLE_NAN_CHECK
57  if( LAPACKE_get_nancheck() ) {
58  /* Optionally check input matrices for NaNs */
59  if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
60  return -14;
61  }
62  if( LAPACKE_z_nancheck( n, d, 1 ) ) {
63  return -7;
64  }
65  if( LAPACKE_lsame( fact, 'f' ) ) {
66  if( LAPACKE_z_nancheck( n, df, 1 ) ) {
67  return -10;
68  }
69  }
70  if( LAPACKE_z_nancheck( n-1, dl, 1 ) ) {
71  return -6;
72  }
73  if( LAPACKE_lsame( fact, 'f' ) ) {
74  if( LAPACKE_z_nancheck( n-1, dlf, 1 ) ) {
75  return -9;
76  }
77  }
78  if( LAPACKE_z_nancheck( n-1, du, 1 ) ) {
79  return -8;
80  }
81  if( LAPACKE_lsame( fact, 'f' ) ) {
82  if( LAPACKE_z_nancheck( n-2, du2, 1 ) ) {
83  return -12;
84  }
85  }
86  if( LAPACKE_lsame( fact, 'f' ) ) {
87  if( LAPACKE_z_nancheck( n-1, duf, 1 ) ) {
88  return -11;
89  }
90  }
91  }
92 #endif
93  /* Allocate memory for working array(s) */
94  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
95  if( rwork == NULL ) {
97  goto exit_level_0;
98  }
99  work = (lapack_complex_double*)
100  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
101  if( work == NULL ) {
103  goto exit_level_1;
104  }
105  /* Call middle-level interface */
106  info = LAPACKE_zgtsvx_work( matrix_layout, fact, trans, n, nrhs, dl, d, du,
107  dlf, df, duf, du2, ipiv, b, ldb, x, ldx, rcond,
108  ferr, berr, work, rwork );
109  /* Release memory and exit */
110  LAPACKE_free( work );
111 exit_level_1:
112  LAPACKE_free( rwork );
113 exit_level_0:
114  if( info == LAPACK_WORK_MEMORY_ERROR ) {
115  LAPACKE_xerbla( "LAPACKE_zgtsvx", info );
116  }
117  return info;
118 }
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
#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 lapack_complex_double
Definition: lapacke.h:90
lapack_int LAPACKE_zgtsvx_work(int matrix_layout, char fact, char trans, lapack_int n, lapack_int nrhs, const lapack_complex_double *dl, const lapack_complex_double *d, const lapack_complex_double *du, lapack_complex_double *dlf, lapack_complex_double *df, lapack_complex_double *duf, lapack_complex_double *du2, lapack_int *ipiv, const 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)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
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
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
int LAPACKE_get_nancheck()
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