LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cggbal()

lapack_int LAPACKE_cggbal ( int  matrix_layout,
char  job,
lapack_int  n,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float b,
lapack_int  ldb,
lapack_int ilo,
lapack_int ihi,
float *  lscale,
float *  rscale 
)

Definition at line 36 of file lapacke_cggbal.c.

41 {
42  lapack_int info = 0;
43  /* Additional scalars declarations for work arrays */
44  lapack_int lwork;
45  float* work = NULL;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_cggbal", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  if( LAPACKE_get_nancheck() ) {
52  /* Optionally check input matrices for NaNs */
53  if( LAPACKE_lsame( job, 'p' ) || LAPACKE_lsame( job, 's' ) ||
54  LAPACKE_lsame( job, 'b' ) ) {
55  if( LAPACKE_cge_nancheck( matrix_layout, n, n, a, lda ) ) {
56  return -4;
57  }
58  }
59  if( LAPACKE_lsame( job, 'p' ) || LAPACKE_lsame( job, 's' ) ||
60  LAPACKE_lsame( job, 'b' ) ) {
61  if( LAPACKE_cge_nancheck( matrix_layout, n, n, b, ldb ) ) {
62  return -6;
63  }
64  }
65  }
66 #endif
67  /* Additional scalars initializations for work arrays */
68  if( LAPACKE_lsame( job, 's' ) || LAPACKE_lsame( job, 'b' ) ) {
69  lwork = MAX(1,6*n);
70  } else {
71  lwork = 1;
72  }
73  /* Allocate memory for working array(s) */
74  work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
75  if( work == NULL ) {
77  goto exit_level_0;
78  }
79  /* Call middle-level interface */
80  info = LAPACKE_cggbal_work( matrix_layout, job, n, a, lda, b, ldb, ilo, ihi,
81  lscale, rscale, work );
82  /* Release memory and exit */
83  LAPACKE_free( work );
84 exit_level_0:
85  if( info == LAPACK_WORK_MEMORY_ERROR ) {
86  LAPACKE_xerbla( "LAPACKE_cggbal", info );
87  }
88  return info;
89 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_int LAPACKE_cggbal_work(int matrix_layout, char job, lapack_int n, lapack_complex_float *a, lapack_int lda, lapack_complex_float *b, lapack_int ldb, lapack_int *ilo, lapack_int *ihi, float *lscale, float *rscale, float *work)
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
int LAPACKE_get_nancheck()
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