LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cpptrs_work()

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

Definition at line 35 of file lapacke_cpptrs_work.c.

38 {
39  lapack_int info = 0;
40  if( matrix_layout == LAPACK_COL_MAJOR ) {
41  /* Call LAPACK function and adjust info */
42  LAPACK_cpptrs( &uplo, &n, &nrhs, ap, b, &ldb, &info );
43  if( info < 0 ) {
44  info = info - 1;
45  }
46  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
47  lapack_int ldb_t = MAX(1,n);
48  lapack_complex_float* b_t = NULL;
49  lapack_complex_float* ap_t = NULL;
50  /* Check leading dimension(s) */
51  if( ldb < nrhs ) {
52  info = -7;
53  LAPACKE_xerbla( "LAPACKE_cpptrs_work", info );
54  return info;
55  }
56  /* Allocate memory for temporary array(s) */
57  b_t = (lapack_complex_float*)
59  ldb_t * MAX(1,nrhs) );
60  if( b_t == NULL ) {
62  goto exit_level_0;
63  }
64  ap_t = (lapack_complex_float*)
66  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
67  if( ap_t == NULL ) {
69  goto exit_level_1;
70  }
71  /* Transpose input matrices */
72  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
73  LAPACKE_cpp_trans( matrix_layout, uplo, n, ap, ap_t );
74  /* Call LAPACK function and adjust info */
75  LAPACK_cpptrs( &uplo, &n, &nrhs, ap_t, b_t, &ldb_t, &info );
76  if( info < 0 ) {
77  info = info - 1;
78  }
79  /* Transpose output matrices */
80  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
81  /* Release memory and exit */
82  LAPACKE_free( ap_t );
83 exit_level_1:
84  LAPACKE_free( b_t );
85 exit_level_0:
86  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
87  LAPACKE_xerbla( "LAPACKE_cpptrs_work", info );
88  }
89  } else {
90  info = -1;
91  LAPACKE_xerbla( "LAPACKE_cpptrs_work", info );
92  }
93  return info;
94 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_cpptrs(...)
Definition: lapack.h:14181
#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_cpp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)
#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)
Here is the call graph for this function:
Here is the caller graph for this function: