LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zgerfsx()

lapack_int LAPACKE_zgerfsx ( int  matrix_layout,
char  trans,
char  equed,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_double a,
lapack_int  lda,
const lapack_complex_double af,
lapack_int  ldaf,
const lapack_int ipiv,
const double *  r,
const double *  c,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  rcond,
double *  berr,
lapack_int  n_err_bnds,
double *  err_bnds_norm,
double *  err_bnds_comp,
lapack_int  nparams,
double *  params 
)

Definition at line 35 of file lapacke_zgerfsx.c.

46{
47 lapack_int info = 0;
48 double* rwork = NULL;
49 lapack_complex_double* work = NULL;
50 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
51 LAPACKE_xerbla( "LAPACKE_zgerfsx", -1 );
52 return -1;
53 }
54#ifndef LAPACK_DISABLE_NAN_CHECK
55 if( LAPACKE_get_nancheck() ) {
56 /* Optionally check input matrices for NaNs */
57 if( LAPACKE_zge_nancheck( matrix_layout, n, n, a, lda ) ) {
58 return -6;
59 }
60 if( LAPACKE_zge_nancheck( matrix_layout, n, n, af, ldaf ) ) {
61 return -8;
62 }
63 if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
64 return -13;
65 }
66 if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
67 if( LAPACKE_d_nancheck( n, c, 1 ) ) {
68 return -12;
69 }
70 }
71 if( nparams>0 ) {
72 if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
73 return -23;
74 }
75 }
76 if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
77 if( LAPACKE_d_nancheck( n, r, 1 ) ) {
78 return -11;
79 }
80 }
81 if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
82 return -15;
83 }
84 }
85#endif
86 /* Allocate memory for working array(s) */
87 rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
88 if( rwork == NULL ) {
90 goto exit_level_0;
91 }
92 work = (lapack_complex_double*)
93 LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
94 if( work == NULL ) {
96 goto exit_level_1;
97 }
98 /* Call middle-level interface */
99 info = LAPACKE_zgerfsx_work( matrix_layout, trans, equed, n, nrhs, a, lda,
100 af, ldaf, ipiv, r, c, b, ldb, x, ldx, rcond,
101 berr, n_err_bnds, err_bnds_norm, err_bnds_comp,
102 nparams, params, work, rwork );
103 /* Release memory and exit */
104 LAPACKE_free( work );
105exit_level_1:
106 LAPACKE_free( rwork );
107exit_level_0:
108 if( info == LAPACK_WORK_MEMORY_ERROR ) {
109 LAPACKE_xerbla( "LAPACKE_zgerfsx", info );
110 }
111 return info;
112}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_double
Definition: lapack.h:64
#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_zgerfsx_work(int matrix_layout, char trans, char equed, lapack_int n, lapack_int nrhs, const lapack_complex_double *a, lapack_int lda, const lapack_complex_double *af, lapack_int ldaf, const lapack_int *ipiv, const double *r, const double *c, const lapack_complex_double *b, lapack_int ldb, lapack_complex_double *x, lapack_int ldx, double *rcond, double *berr, lapack_int n_err_bnds, double *err_bnds_norm, double *err_bnds_comp, lapack_int nparams, double *params, lapack_complex_double *work, double *rwork)
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_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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