LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_chbgv()

lapack_int LAPACKE_chbgv ( int  matrix_layout,
char  jobz,
char  uplo,
lapack_int  n,
lapack_int  ka,
lapack_int  kb,
lapack_complex_float ab,
lapack_int  ldab,
lapack_complex_float bb,
lapack_int  ldbb,
float *  w,
lapack_complex_float z,
lapack_int  ldz 
)

Definition at line 35 of file lapacke_chbgv.c.

40{
41 lapack_int info = 0;
42 float* rwork = NULL;
43 lapack_complex_float* work = NULL;
44 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45 LAPACKE_xerbla( "LAPACKE_chbgv", -1 );
46 return -1;
47 }
48#ifndef LAPACK_DISABLE_NAN_CHECK
49 if( LAPACKE_get_nancheck() ) {
50 /* Optionally check input matrices for NaNs */
51 if( LAPACKE_chb_nancheck( matrix_layout, uplo, n, ka, ab, ldab ) ) {
52 return -7;
53 }
54 if( LAPACKE_chb_nancheck( matrix_layout, uplo, n, kb, bb, ldbb ) ) {
55 return -9;
56 }
57 }
58#endif
59 /* Allocate memory for working array(s) */
60 rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
61 if( rwork == NULL ) {
63 goto exit_level_0;
64 }
65 work = (lapack_complex_float*)
66 LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
67 if( work == NULL ) {
69 goto exit_level_1;
70 }
71 /* Call middle-level interface */
72 info = LAPACKE_chbgv_work( matrix_layout, jobz, uplo, n, ka, kb, ab, ldab,
73 bb, ldbb, w, z, ldz, work, rwork );
74 /* Release memory and exit */
75 LAPACKE_free( work );
76exit_level_1:
77 LAPACKE_free( rwork );
78exit_level_0:
79 if( info == LAPACK_WORK_MEMORY_ERROR ) {
80 LAPACKE_xerbla( "LAPACKE_chbgv", info );
81 }
82 return info;
83}
#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
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_int LAPACKE_chbgv_work(int matrix_layout, char jobz, char uplo, lapack_int n, lapack_int ka, lapack_int kb, lapack_complex_float *ab, lapack_int ldab, lapack_complex_float *bb, lapack_int ldbb, float *w, lapack_complex_float *z, lapack_int ldz, lapack_complex_float *work, float *rwork)
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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