LAPACK  3.7.1
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 36 of file lapacke_zgebal_work.c.

40 {
41  lapack_int info = 0;
42  if( matrix_layout == LAPACK_COL_MAJOR ) {
43  /* Call LAPACK function and adjust info */
44  LAPACK_zgebal( &job, &n, a, &lda, ilo, ihi, scale, &info );
45  if( info < 0 ) {
46  info = info - 1;
47  }
48  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
49  lapack_int lda_t = MAX(1,n);
50  lapack_complex_double* a_t = NULL;
51  /* Check leading dimension(s) */
52  if( lda < n ) {
53  info = -5;
54  LAPACKE_xerbla( "LAPACKE_zgebal_work", info );
55  return info;
56  }
57  /* Allocate memory for temporary array(s) */
58  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'p' ) ||
59  LAPACKE_lsame( job, 's' ) ) {
60  a_t = (lapack_complex_double*)
62  lda_t * MAX(1,n) );
63  if( a_t == NULL ) {
65  goto exit_level_0;
66  }
67  }
68  /* Transpose input matrices */
69  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'p' ) ||
70  LAPACKE_lsame( job, 's' ) ) {
71  LAPACKE_zge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
72  }
73  /* Call LAPACK function and adjust info */
74  LAPACK_zgebal( &job, &n, a_t, &lda_t, ilo, ihi, scale, &info );
75  if( info < 0 ) {
76  info = info - 1;
77  }
78  /* Transpose output matrices */
79  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'p' ) ||
80  LAPACKE_lsame( job, 's' ) ) {
81  LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
82  }
83  /* Release memory and exit */
84  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'p' ) ||
85  LAPACKE_lsame( job, 's' ) ) {
86  LAPACKE_free( a_t );
87  }
88 exit_level_0:
89  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
90  LAPACKE_xerbla( "LAPACKE_zgebal_work", info );
91  }
92  } else {
93  info = -1;
94  LAPACKE_xerbla( "LAPACKE_zgebal_work", info );
95  }
96  return info;
97 }
void LAPACK_zgebal(char *job, lapack_int *n, lapack_complex_double *a, lapack_int *lda, lapack_int *ilo, lapack_int *ihi, double *scale, lapack_int *info)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#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
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#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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