LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgebal_work()

lapack_int LAPACKE_zgebal_work ( int  matrix_layout,
char  job,
lapack_int  n,
lapack_complex_double a,
lapack_int  lda,
lapack_int ilo,
lapack_int ihi,
double *  scale 
)

Definition at line 35 of file lapacke_zgebal_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_zgebal( &job, &n, a, &lda, ilo, ihi, scale, &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_complex_double* a_t = NULL;
50  /* Check leading dimension(s) */
51  if( lda < n ) {
52  info = -5;
53  LAPACKE_xerbla( "LAPACKE_zgebal_work", info );
54  return info;
55  }
56  /* Allocate memory for temporary array(s) */
57  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'p' ) ||
58  LAPACKE_lsame( job, 's' ) ) {
59  a_t = (lapack_complex_double*)
61  lda_t * MAX(1,n) );
62  if( a_t == NULL ) {
64  goto exit_level_0;
65  }
66  }
67  /* Transpose input matrices */
68  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'p' ) ||
69  LAPACKE_lsame( job, 's' ) ) {
70  LAPACKE_zge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
71  }
72  /* Call LAPACK function and adjust info */
73  LAPACK_zgebal( &job, &n, a_t, &lda_t, ilo, ihi, scale, &info );
74  if( info < 0 ) {
75  info = info - 1;
76  }
77  /* Transpose output matrices */
78  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'p' ) ||
79  LAPACKE_lsame( job, 's' ) ) {
80  LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
81  }
82  /* Release memory and exit */
83  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'p' ) ||
84  LAPACKE_lsame( job, 's' ) ) {
85  LAPACKE_free( a_t );
86  }
87 exit_level_0:
88  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
89  LAPACKE_xerbla( "LAPACKE_zgebal_work", info );
90  }
91  } else {
92  info = -1;
93  LAPACKE_xerbla( "LAPACKE_zgebal_work", info );
94  }
95  return info;
96 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_zgebal(...)
Definition: lapack.h:1403
#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
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
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)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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