LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zlag2c_work()

lapack_int LAPACKE_zlag2c_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
const lapack_complex_double a,
lapack_int  lda,
lapack_complex_float sa,
lapack_int  ldsa 
)

Definition at line 36 of file lapacke_zlag2c_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_zlag2c( &m, &n, a, &lda, sa, &ldsa, &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,m);
49  lapack_int ldsa_t = MAX(1,m);
50  lapack_complex_double* a_t = NULL;
51  lapack_complex_float* sa_t = NULL;
52  /* Check leading dimension(s) */
53  if( lda < n ) {
54  info = -5;
55  LAPACKE_xerbla( "LAPACKE_zlag2c_work", info );
56  return info;
57  }
58  if( ldsa < n ) {
59  info = -7;
60  LAPACKE_xerbla( "LAPACKE_zlag2c_work", info );
61  return info;
62  }
63  /* Allocate memory for temporary array(s) */
64  a_t = (lapack_complex_double*)
65  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
66  if( a_t == NULL ) {
68  goto exit_level_0;
69  }
70  sa_t = (lapack_complex_float*)
71  LAPACKE_malloc( sizeof(lapack_complex_float) * ldsa_t * MAX(1,n) );
72  if( sa_t == NULL ) {
74  goto exit_level_1;
75  }
76  /* Transpose input matrices */
77  LAPACKE_zge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
78  /* Call LAPACK function and adjust info */
79  LAPACK_zlag2c( &m, &n, a_t, &lda_t, sa_t, &ldsa_t, &info );
80  if( info < 0 ) {
81  info = info - 1;
82  }
83  /* Transpose output matrices */
84  LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, sa_t, ldsa_t, sa, ldsa );
85  /* Release memory and exit */
86  LAPACKE_free( sa_t );
87 exit_level_1:
88  LAPACKE_free( a_t );
89 exit_level_0:
90  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
91  LAPACKE_xerbla( "LAPACKE_zlag2c_work", info );
92  }
93  } else {
94  info = -1;
95  LAPACKE_xerbla( "LAPACKE_zlag2c_work", info );
96  }
97  return info;
98 }
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_zlag2c(lapack_int *m, lapack_int *n, const lapack_complex_double *a, lapack_int *lda, lapack_complex_float *sa, lapack_int *ldsa, 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 lapack_complex_double
Definition: lapacke.h:90
#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_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)
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