LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ssycon_3()

lapack_int LAPACKE_ssycon_3 ( int  matrix_layout,
char  uplo,
lapack_int  n,
const float *  a,
lapack_int  lda,
const float *  e,
const lapack_int ipiv,
float  anorm,
float *  rcond 
)

Definition at line 36 of file lapacke_ssycon_3.c.

39 {
40  lapack_int info = 0;
41  lapack_int* iwork = NULL;
42  float* work = NULL;
43  lapack_int e_start = LAPACKE_lsame( uplo, 'U' ) ? 1 : 0;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_ssycon_3", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  /* Optionally check input matrices for NaNs */
50  if( LAPACKE_ssy_nancheck( matrix_layout, uplo, n, a, lda ) ) {
51  return -4;
52  }
53  if( LAPACKE_s_nancheck( n-1, e + e_start, 1 ) ) {
54  return -6;
55  }
56  if( LAPACKE_s_nancheck( 1, &anorm, 1 ) ) {
57  return -8;
58  }
59 #endif
60  /* Allocate memory for working array(s) */
61  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
62  if( iwork == NULL ) {
64  goto exit_level_0;
65  }
66  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,2*n) );
67  if( work == NULL ) {
69  goto exit_level_1;
70  }
71  /* Call middle-level interface */
72  info = LAPACKE_ssycon_3_work( matrix_layout, uplo, n, a, lda, e, ipiv, anorm,
73  rcond, work, iwork );
74  /* Release memory and exit */
75  LAPACKE_free( work );
76 exit_level_1:
77  LAPACKE_free( iwork );
78 exit_level_0:
79  if( info == LAPACK_WORK_MEMORY_ERROR ) {
80  LAPACKE_xerbla( "LAPACKE_ssycon_3", info );
81  }
82  return info;
83 }
lapack_logical LAPACKE_ssy_nancheck(int matrix_layout, char uplo, lapack_int n, const float *a, lapack_int lda)
#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_s_nancheck(lapack_int n, const float *x, lapack_int incx)
lapack_int LAPACKE_ssycon_3_work(int matrix_layout, char uplo, lapack_int n, const float *a, lapack_int lda, const float *e, const lapack_int *ipiv, float anorm, float *rcond, float *work, lapack_int *iwork)
#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
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