LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_csptrs_work()

lapack_int LAPACKE_csptrs_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_float ap,
const lapack_int ipiv,
lapack_complex_float b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_csptrs_work.c.

40 {
41  lapack_int info = 0;
42  if( matrix_layout == LAPACK_COL_MAJOR ) {
43  /* Call LAPACK function and adjust info */
44  LAPACK_csptrs( &uplo, &n, &nrhs, ap, ipiv, b, &ldb, &info );
45  if( info < 0 ) {
46  info = info - 1;
47  }
48  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
49  lapack_int ldb_t = MAX(1,n);
50  lapack_complex_float* b_t = NULL;
51  lapack_complex_float* ap_t = NULL;
52  /* Check leading dimension(s) */
53  if( ldb < nrhs ) {
54  info = -8;
55  LAPACKE_xerbla( "LAPACKE_csptrs_work", info );
56  return info;
57  }
58  /* Allocate memory for temporary array(s) */
59  b_t = (lapack_complex_float*)
61  ldb_t * MAX(1,nrhs) );
62  if( b_t == NULL ) {
64  goto exit_level_0;
65  }
66  ap_t = (lapack_complex_float*)
68  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
69  if( ap_t == NULL ) {
71  goto exit_level_1;
72  }
73  /* Transpose input matrices */
74  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
75  LAPACKE_csp_trans( matrix_layout, uplo, n, ap, ap_t );
76  /* Call LAPACK function and adjust info */
77  LAPACK_csptrs( &uplo, &n, &nrhs, ap_t, ipiv, b_t, &ldb_t, &info );
78  if( info < 0 ) {
79  info = info - 1;
80  }
81  /* Transpose output matrices */
82  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
83  /* Release memory and exit */
84  LAPACKE_free( ap_t );
85 exit_level_1:
86  LAPACKE_free( b_t );
87 exit_level_0:
88  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
89  LAPACKE_xerbla( "LAPACKE_csptrs_work", info );
90  }
91  } else {
92  info = -1;
93  LAPACKE_xerbla( "LAPACKE_csptrs_work", info );
94  }
95  return info;
96 }
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
void LAPACK_csptrs(char *uplo, lapack_int *n, lapack_int *nrhs, const lapack_complex_float *ap, const lapack_int *ipiv, lapack_complex_float *b, lapack_int *ldb, lapack_int *info)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
void LAPACKE_csp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)
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