LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_chbgvx()

lapack_int LAPACKE_chbgvx ( int  matrix_layout,
char  jobz,
char  range,
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,
lapack_complex_float q,
lapack_int  ldq,
float  vl,
float  vu,
lapack_int  il,
lapack_int  iu,
float  abstol,
lapack_int m,
float *  w,
lapack_complex_float z,
lapack_int  ldz,
lapack_int ifail 
)

Definition at line 35 of file lapacke_chbgvx.c.

43{
44 lapack_int info = 0;
45 lapack_int* iwork = NULL;
46 float* rwork = NULL;
47 lapack_complex_float* work = NULL;
48 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49 LAPACKE_xerbla( "LAPACKE_chbgvx", -1 );
50 return -1;
51 }
52#ifndef LAPACK_DISABLE_NAN_CHECK
53 if( LAPACKE_get_nancheck() ) {
54 /* Optionally check input matrices for NaNs */
55 if( LAPACKE_chb_nancheck( matrix_layout, uplo, n, ka, ab, ldab ) ) {
56 return -8;
57 }
58 if( LAPACKE_s_nancheck( 1, &abstol, 1 ) ) {
59 return -18;
60 }
61 if( LAPACKE_chb_nancheck( matrix_layout, uplo, n, kb, bb, ldbb ) ) {
62 return -10;
63 }
64 if( LAPACKE_lsame( range, 'v' ) ) {
65 if( LAPACKE_s_nancheck( 1, &vl, 1 ) ) {
66 return -14;
67 }
68 }
69 if( LAPACKE_lsame( range, 'v' ) ) {
70 if( LAPACKE_s_nancheck( 1, &vu, 1 ) ) {
71 return -15;
72 }
73 }
74 }
75#endif
76 /* Allocate memory for working array(s) */
77 iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,5*n) );
78 if( iwork == NULL ) {
80 goto exit_level_0;
81 }
82 rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,7*n) );
83 if( rwork == NULL ) {
85 goto exit_level_1;
86 }
87 work = (lapack_complex_float*)
88 LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
89 if( work == NULL ) {
91 goto exit_level_2;
92 }
93 /* Call middle-level interface */
94 info = LAPACKE_chbgvx_work( matrix_layout, jobz, range, uplo, n, ka, kb, ab,
95 ldab, bb, ldbb, q, ldq, vl, vu, il, iu, abstol,
96 m, w, z, ldz, work, rwork, iwork, ifail );
97 /* Release memory and exit */
98 LAPACKE_free( work );
99exit_level_2:
100 LAPACKE_free( rwork );
101exit_level_1:
102 LAPACKE_free( iwork );
103exit_level_0:
104 if( info == LAPACK_WORK_MEMORY_ERROR ) {
105 LAPACKE_xerbla( "LAPACKE_chbgvx", info );
106 }
107 return info;
108}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_float
Definition: lapack.h:46
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
lapack_int LAPACKE_chbgvx_work(int matrix_layout, char jobz, char range, 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, lapack_complex_float *q, lapack_int ldq, float vl, float vu, lapack_int il, lapack_int iu, float abstol, lapack_int *m, float *w, lapack_complex_float *z, lapack_int ldz, lapack_complex_float *work, float *rwork, lapack_int *iwork, lapack_int *ifail)
#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_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
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_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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