LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_spbcon()

lapack_int LAPACKE_spbcon ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  kd,
const float *  ab,
lapack_int  ldab,
float  anorm,
float *  rcond 
)

Definition at line 35 of file lapacke_spbcon.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_spbcon", -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_spb_nancheck( matrix_layout, uplo, n, kd, ab, ldab ) ) {
50 return -5;
51 }
52 if( LAPACKE_s_nancheck( 1, &anorm, 1 ) ) {
53 return -7;
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(1,3*n) );
64 if( work == NULL ) {
66 goto exit_level_1;
67 }
68 /* Call middle-level interface */
69 info = LAPACKE_spbcon_work( matrix_layout, uplo, n, kd, ab, ldab, anorm,
70 rcond, work, iwork );
71 /* Release memory and exit */
72 LAPACKE_free( work );
73exit_level_1:
74 LAPACKE_free( iwork );
75exit_level_0:
76 if( info == LAPACK_WORK_MEMORY_ERROR ) {
77 LAPACKE_xerbla( "LAPACKE_spbcon", info );
78 }
79 return info;
80}
#define lapack_int
Definition: lapack.h:87
#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_spbcon_work(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const float *ab, lapack_int ldab, 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)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_spb_nancheck(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const float *ab, lapack_int ldab)
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