LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_chesvx()

lapack_int LAPACKE_chesvx ( int  matrix_layout,
char  fact,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_float a,
lapack_int  lda,
lapack_complex_float af,
lapack_int  ldaf,
lapack_int ipiv,
const lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float x,
lapack_int  ldx,
float *  rcond,
float *  ferr,
float *  berr 
)

Definition at line 35 of file lapacke_chesvx.c.

42{
43 lapack_int info = 0;
44 lapack_int lwork = -1;
45 float* rwork = NULL;
46 lapack_complex_float* work = NULL;
47 lapack_complex_float work_query;
48 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49 LAPACKE_xerbla( "LAPACKE_chesvx", -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_che_nancheck( matrix_layout, uplo, n, a, lda ) ) {
56 return -6;
57 }
58 if( LAPACKE_lsame( fact, 'f' ) ) {
59 if( LAPACKE_che_nancheck( matrix_layout, uplo, n, af, ldaf ) ) {
60 return -8;
61 }
62 }
63 if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
64 return -11;
65 }
66 }
67#endif
68 /* Allocate memory for working array(s) */
69 rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
70 if( rwork == NULL ) {
72 goto exit_level_0;
73 }
74 /* Query optimal working array(s) size */
75 info = LAPACKE_chesvx_work( matrix_layout, fact, uplo, n, nrhs, a, lda, af,
76 ldaf, ipiv, b, ldb, x, ldx, rcond, ferr, berr,
77 &work_query, lwork, rwork );
78 if( info != 0 ) {
79 goto exit_level_1;
80 }
81 lwork = LAPACK_C2INT( work_query );
82 /* Allocate memory for work arrays */
83 work = (lapack_complex_float*)
84 LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
85 if( work == NULL ) {
87 goto exit_level_1;
88 }
89 /* Call middle-level interface */
90 info = LAPACKE_chesvx_work( matrix_layout, fact, uplo, n, nrhs, a, lda, af,
91 ldaf, ipiv, b, ldb, x, ldx, rcond, ferr, berr,
92 work, lwork, rwork );
93 /* Release memory and exit */
94 LAPACKE_free( work );
95exit_level_1:
96 LAPACKE_free( rwork );
97exit_level_0:
98 if( info == LAPACK_WORK_MEMORY_ERROR ) {
99 LAPACKE_xerbla( "LAPACKE_chesvx", info );
100 }
101 return info;
102}
#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_chesvx_work(int matrix_layout, char fact, char uplo, lapack_int n, lapack_int nrhs, const lapack_complex_float *a, lapack_int lda, lapack_complex_float *af, lapack_int ldaf, lapack_int *ipiv, const lapack_complex_float *b, lapack_int ldb, lapack_complex_float *x, lapack_int ldx, float *rcond, float *ferr, float *berr, lapack_complex_float *work, lapack_int lwork, float *rwork)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACK_C2INT(x)
Definition: lapacke.h:49
#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_che_nancheck(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
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