LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_chetrs_rook_work()

lapack_int LAPACKE_chetrs_rook_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_float a,
lapack_int  lda,
const lapack_int ipiv,
lapack_complex_float b,
lapack_int  ldb 
)

Definition at line 35 of file lapacke_chetrs_rook_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_chetrs_rook( &uplo, &n, &nrhs, a, &lda, ipiv, b, &ldb, &info );
44  if( info < 0 ) {
45  info = info - 1;
46  }
47  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
48  lapack_int lda_t = MAX(1,n);
49  lapack_int ldb_t = MAX(1,n);
50  lapack_complex_float* a_t = NULL;
51  lapack_complex_float* b_t = NULL;
52  /* Check leading dimension(s) */
53  if( lda < n ) {
54  info = -6;
55  LAPACKE_xerbla( "LAPACKE_chetrs_rook_work", info );
56  return info;
57  }
58  if( ldb < nrhs ) {
59  info = -9;
60  LAPACKE_xerbla( "LAPACKE_chetrs_rook_work", info );
61  return info;
62  }
63  /* Allocate memory for temporary array(s) */
64  a_t = (lapack_complex_float*)
65  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
66  if( a_t == NULL ) {
68  goto exit_level_0;
69  }
70  b_t = (lapack_complex_float*)
72  ldb_t * MAX(1,nrhs) );
73  if( b_t == NULL ) {
75  goto exit_level_1;
76  }
77  /* Transpose input matrices */
78  LAPACKE_che_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
79  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
80  /* Call LAPACK function and adjust info */
81  LAPACK_chetrs_rook( &uplo, &n, &nrhs, a_t, &lda_t, ipiv, b_t, &ldb_t,
82  &info );
83  if( info < 0 ) {
84  info = info - 1;
85  }
86  /* Transpose output matrices */
87  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
88  /* Release memory and exit */
89  LAPACKE_free( b_t );
90 exit_level_1:
91  LAPACKE_free( a_t );
92 exit_level_0:
93  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
94  LAPACKE_xerbla( "LAPACKE_chetrs_rook_work", info );
95  }
96  } else {
97  info = -1;
98  LAPACKE_xerbla( "LAPACKE_chetrs_rook_work", info );
99  }
100  return info;
101 }
#define LAPACK_chetrs_rook(...)
Definition: lapack.h:8278
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_float
Definition: lapack.h:45
#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_che_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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)
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