LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_strcon()

lapack_int LAPACKE_strcon ( int  matrix_layout,
char  norm,
char  uplo,
char  diag,
lapack_int  n,
const float *  a,
lapack_int  lda,
float *  rcond 
)

Definition at line 36 of file lapacke_strcon.c.

39 {
40  lapack_int info = 0;
41  lapack_int* iwork = NULL;
42  float* work = NULL;
43  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
44  LAPACKE_xerbla( "LAPACKE_strcon", -1 );
45  return -1;
46  }
47 #ifndef LAPACK_DISABLE_NAN_CHECK
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_str_nancheck( matrix_layout, uplo, diag, n, a, lda ) ) {
50  return -6;
51  }
52 #endif
53  /* Allocate memory for working array(s) */
54  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
55  if( iwork == NULL ) {
57  goto exit_level_0;
58  }
59  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
60  if( work == NULL ) {
62  goto exit_level_1;
63  }
64  /* Call middle-level interface */
65  info = LAPACKE_strcon_work( matrix_layout, norm, uplo, diag, n, a, lda,
66  rcond, work, iwork );
67  /* Release memory and exit */
68  LAPACKE_free( work );
69 exit_level_1:
70  LAPACKE_free( iwork );
71 exit_level_0:
72  if( info == LAPACK_WORK_MEMORY_ERROR ) {
73  LAPACKE_xerbla( "LAPACKE_strcon", info );
74  }
75  return info;
76 }
#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 MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_int LAPACKE_strcon_work(int matrix_layout, char norm, char uplo, char diag, lapack_int n, const float *a, lapack_int lda, float *rcond, float *work, lapack_int *iwork)
lapack_logical LAPACKE_str_nancheck(int matrix_layout, char uplo, char diag, lapack_int n, const float *a, lapack_int lda)
#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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