LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_csytri_3()

lapack_int LAPACKE_csytri_3 ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_complex_float a,
lapack_int  lda,
const lapack_complex_float e,
const lapack_int ipiv 
)

Definition at line 36 of file lapacke_csytri_3.c.

39 {
40  lapack_int info = 0;
41  lapack_int lwork = -1;
42  lapack_complex_float* work = NULL;
43  lapack_complex_float work_query;
44  lapack_int e_start = LAPACKE_lsame( uplo, 'U' ) ? 1 : 0;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_csytri_3", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  /* Optionally check input matrices for NaNs */
51  if( LAPACKE_csy_nancheck( matrix_layout, uplo, n, a, lda ) ) {
52  return -4;
53  }
54  if( LAPACKE_c_nancheck( n-1, e + e_start, 1 ) ) {
55  return -6;
56  }
57 #endif
58  /* Query optimal working array(s) size */
59  info = LAPACKE_csytri_3_work( matrix_layout, uplo, n, a, lda, e, ipiv,
60  &work_query, lwork );
61  if( info != 0 ) {
62  goto exit_level_0;
63  }
64  lwork = LAPACK_C2INT( work_query );
65  /* Allocate memory for working array(s) */
66  work = (lapack_complex_float*)
67  LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
68  if( work == NULL ) {
70  goto exit_level_0;
71  }
72  /* Call middle-level interface */
73  info = LAPACKE_csytri_3_work( matrix_layout, uplo, n, a, lda, e, ipiv, work, lwork );
74  /* Release memory and exit */
75  LAPACKE_free( work );
76 exit_level_0:
77  if( info == LAPACK_WORK_MEMORY_ERROR ) {
78  LAPACKE_xerbla( "LAPACKE_csytri_3", info );
79  }
80  return info;
81 }
#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_csy_nancheck(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *a, lapack_int lda)
lapack_logical LAPACKE_c_nancheck(lapack_int n, const lapack_complex_float *x, lapack_int incx)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_C2INT(x)
Definition: lapacke.h:116
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
lapack_int LAPACKE_csytri_3_work(int matrix_layout, char uplo, lapack_int n, lapack_complex_float *a, lapack_int lda, const lapack_complex_float *e, const lapack_int *ipiv, lapack_complex_float *work, lapack_int lwork)
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