LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_chbev()

lapack_int LAPACKE_chbev ( int  matrix_layout,
char  jobz,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_complex_float ab,
lapack_int  ldab,
float *  w,
lapack_complex_float z,
lapack_int  ldz 
)

Definition at line 35 of file lapacke_chbev.c.

39{
40 lapack_int info = 0;
41 float* rwork = NULL;
42 lapack_complex_float* work = NULL;
43 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
44 LAPACKE_xerbla( "LAPACKE_chbev", -1 );
45 return -1;
46 }
47#ifndef LAPACK_DISABLE_NAN_CHECK
48 if( LAPACKE_get_nancheck() ) {
49 /* Optionally check input matrices for NaNs */
50 if( LAPACKE_chb_nancheck( matrix_layout, uplo, n, kd, ab, ldab ) ) {
51 return -6;
52 }
53 }
54#endif
55 /* Allocate memory for working array(s) */
56 rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n-2) );
57 if( rwork == NULL ) {
59 goto exit_level_0;
60 }
61 work = (lapack_complex_float*)
62 LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
63 if( work == NULL ) {
65 goto exit_level_1;
66 }
67 /* Call middle-level interface */
68 info = LAPACKE_chbev_work( matrix_layout, jobz, uplo, n, kd, ab, ldab, w, z,
69 ldz, work, rwork );
70 /* Release memory and exit */
71 LAPACKE_free( work );
72exit_level_1:
73 LAPACKE_free( rwork );
74exit_level_0:
75 if( info == LAPACK_WORK_MEMORY_ERROR ) {
76 LAPACKE_xerbla( "LAPACKE_chbev", info );
77 }
78 return info;
79}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_float
Definition: lapack.h:46
#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_chbev_work(int matrix_layout, char jobz, char uplo, lapack_int n, lapack_int kd, lapack_complex_float *ab, lapack_int ldab, float *w, lapack_complex_float *z, lapack_int ldz, lapack_complex_float *work, float *rwork)
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_chb_nancheck(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const lapack_complex_float *ab, lapack_int ldab)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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