LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sgecon()

lapack_int LAPACKE_sgecon ( int  matrix_layout,
char  norm,
lapack_int  n,
const float *  a,
lapack_int  lda,
float  anorm,
float *  rcond 
)

Definition at line 35 of file lapacke_sgecon.c.

38 {
39  lapack_int info = 0;
40  lapack_int* iwork = NULL;
41  float* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_sgecon", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  if( LAPACKE_get_nancheck() ) {
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_sge_nancheck( matrix_layout, n, n, a, lda ) ) {
50  return -4;
51  }
52  if( LAPACKE_s_nancheck( 1, &anorm, 1 ) ) {
53  return -6;
54  }
55  }
56 #endif
57  /* Allocate memory for working array(s) */
58  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
59  if( iwork == NULL ) {
61  goto exit_level_0;
62  }
63  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,4*n) );
64  if( work == NULL ) {
66  goto exit_level_1;
67  }
68  /* Call middle-level interface */
69  info = LAPACKE_sgecon_work( matrix_layout, norm, n, a, lda, anorm, rcond,
70  work, iwork );
71  /* Release memory and exit */
72  LAPACKE_free( work );
73 exit_level_1:
74  LAPACKE_free( iwork );
75 exit_level_0:
76  if( info == LAPACK_WORK_MEMORY_ERROR ) {
77  LAPACKE_xerbla( "LAPACKE_sgecon", info );
78  }
79  return info;
80 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_int LAPACKE_sgecon_work(int matrix_layout, char norm, lapack_int n, const float *a, lapack_int lda, float anorm, float *rcond, float *work, lapack_int *iwork)
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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