LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zsprfs_work()

lapack_int LAPACKE_zsprfs_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_double ap,
const lapack_complex_double afp,
const lapack_int ipiv,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  ferr,
double *  berr,
lapack_complex_double work,
double *  rwork 
)

Definition at line 35 of file lapacke_zsprfs_work.c.

44 {
45  lapack_int info = 0;
46  if( matrix_layout == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_zsprfs( &uplo, &n, &nrhs, ap, afp, ipiv, b, &ldb, x, &ldx, ferr,
49  berr, work, rwork, &info );
50  if( info < 0 ) {
51  info = info - 1;
52  }
53  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
54  lapack_int ldb_t = MAX(1,n);
55  lapack_int ldx_t = MAX(1,n);
56  lapack_complex_double* b_t = NULL;
57  lapack_complex_double* x_t = NULL;
58  lapack_complex_double* ap_t = NULL;
59  lapack_complex_double* afp_t = NULL;
60  /* Check leading dimension(s) */
61  if( ldb < nrhs ) {
62  info = -9;
63  LAPACKE_xerbla( "LAPACKE_zsprfs_work", info );
64  return info;
65  }
66  if( ldx < nrhs ) {
67  info = -11;
68  LAPACKE_xerbla( "LAPACKE_zsprfs_work", info );
69  return info;
70  }
71  /* Allocate memory for temporary array(s) */
72  b_t = (lapack_complex_double*)
74  ldb_t * MAX(1,nrhs) );
75  if( b_t == NULL ) {
77  goto exit_level_0;
78  }
79  x_t = (lapack_complex_double*)
81  ldx_t * MAX(1,nrhs) );
82  if( x_t == NULL ) {
84  goto exit_level_1;
85  }
86  ap_t = (lapack_complex_double*)
88  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
89  if( ap_t == NULL ) {
91  goto exit_level_2;
92  }
93  afp_t = (lapack_complex_double*)
95  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
96  if( afp_t == NULL ) {
98  goto exit_level_3;
99  }
100  /* Transpose input matrices */
101  LAPACKE_zge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
102  LAPACKE_zge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
103  LAPACKE_zsp_trans( matrix_layout, uplo, n, ap, ap_t );
104  LAPACKE_zsp_trans( matrix_layout, uplo, n, afp, afp_t );
105  /* Call LAPACK function and adjust info */
106  LAPACK_zsprfs( &uplo, &n, &nrhs, ap_t, afp_t, ipiv, b_t, &ldb_t, x_t,
107  &ldx_t, ferr, berr, work, rwork, &info );
108  if( info < 0 ) {
109  info = info - 1;
110  }
111  /* Transpose output matrices */
112  LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
113  /* Release memory and exit */
114  LAPACKE_free( afp_t );
115 exit_level_3:
116  LAPACKE_free( ap_t );
117 exit_level_2:
118  LAPACKE_free( x_t );
119 exit_level_1:
120  LAPACKE_free( b_t );
121 exit_level_0:
122  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
123  LAPACKE_xerbla( "LAPACKE_zsprfs_work", info );
124  }
125  } else {
126  info = -1;
127  LAPACKE_xerbla( "LAPACKE_zsprfs_work", info );
128  }
129  return info;
130 }
#define LAPACK_zsprfs(...)
Definition: lapack.h:15668
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
void LAPACKE_zsp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *in, lapack_complex_double *out)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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