LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_chbtrd()

lapack_int LAPACKE_chbtrd ( int  matrix_layout,
char  vect,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_complex_float ab,
lapack_int  ldab,
float *  d,
float *  e,
lapack_complex_float q,
lapack_int  ldq 
)

Definition at line 36 of file lapacke_chbtrd.c.

40 {
41  lapack_int info = 0;
42  lapack_complex_float* work = NULL;
43  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
44  LAPACKE_xerbla( "LAPACKE_chbtrd", -1 );
45  return -1;
46  }
47 #ifndef LAPACK_DISABLE_NAN_CHECK
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_chb_nancheck( matrix_layout, uplo, n, kd, ab, ldab ) ) {
50  return -6;
51  }
52  if( LAPACKE_lsame( vect, 'u' ) ) {
53  if( LAPACKE_cge_nancheck( matrix_layout, n, n, q, ldq ) ) {
54  return -10;
55  }
56  }
57 #endif
58  /* Allocate memory for working array(s) */
59  work = (lapack_complex_float*)
60  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
61  if( work == NULL ) {
63  goto exit_level_0;
64  }
65  /* Call middle-level interface */
66  info = LAPACKE_chbtrd_work( matrix_layout, vect, uplo, n, kd, ab, ldab, d, e,
67  q, ldq, work );
68  /* Release memory and exit */
69  LAPACKE_free( work );
70 exit_level_0:
71  if( info == LAPACK_WORK_MEMORY_ERROR ) {
72  LAPACKE_xerbla( "LAPACKE_chbtrd", info );
73  }
74  return info;
75 }
#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
#define lapack_complex_float
Definition: lapacke.h:74
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
lapack_logical LAPACKE_chb_nancheck(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const lapack_complex_float *ab, lapack_int ldab)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_int LAPACKE_chbtrd_work(int matrix_layout, char vect, char uplo, lapack_int n, lapack_int kd, lapack_complex_float *ab, lapack_int ldab, float *d, float *e, lapack_complex_float *q, lapack_int ldq, lapack_complex_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
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