LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zgtrfs()

lapack_int LAPACKE_zgtrfs ( int  matrix_layout,
char  trans,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_double dl,
const lapack_complex_double d,
const lapack_complex_double du,
const lapack_complex_double dlf,
const lapack_complex_double df,
const lapack_complex_double duf,
const lapack_complex_double du2,
const lapack_int ipiv,
const lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  ferr,
double *  berr 
)

Definition at line 35 of file lapacke_zgtrfs.c.

47{
48 lapack_int info = 0;
49 double* rwork = NULL;
50 lapack_complex_double* work = NULL;
51 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
52 LAPACKE_xerbla( "LAPACKE_zgtrfs", -1 );
53 return -1;
54 }
55#ifndef LAPACK_DISABLE_NAN_CHECK
56 if( LAPACKE_get_nancheck() ) {
57 /* Optionally check input matrices for NaNs */
58 if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
59 return -13;
60 }
61 if( LAPACKE_z_nancheck( n, d, 1 ) ) {
62 return -6;
63 }
64 if( LAPACKE_z_nancheck( n, df, 1 ) ) {
65 return -9;
66 }
67 if( LAPACKE_z_nancheck( n-1, dl, 1 ) ) {
68 return -5;
69 }
70 if( LAPACKE_z_nancheck( n-1, dlf, 1 ) ) {
71 return -8;
72 }
73 if( LAPACKE_z_nancheck( n-1, du, 1 ) ) {
74 return -7;
75 }
76 if( LAPACKE_z_nancheck( n-2, du2, 1 ) ) {
77 return -11;
78 }
79 if( LAPACKE_z_nancheck( n-1, duf, 1 ) ) {
80 return -10;
81 }
82 if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
83 return -15;
84 }
85 }
86#endif
87 /* Allocate memory for working array(s) */
88 rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
89 if( rwork == NULL ) {
91 goto exit_level_0;
92 }
93 work = (lapack_complex_double*)
94 LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
95 if( work == NULL ) {
97 goto exit_level_1;
98 }
99 /* Call middle-level interface */
100 info = LAPACKE_zgtrfs_work( matrix_layout, trans, n, nrhs, dl, d, du, dlf,
101 df, duf, du2, ipiv, b, ldb, x, ldx, ferr, berr,
102 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_zgtrfs", 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)
lapack_int LAPACKE_zgtrfs_work(int matrix_layout, char trans, lapack_int n, lapack_int nrhs, const lapack_complex_double *dl, const lapack_complex_double *d, const lapack_complex_double *du, const lapack_complex_double *dlf, const lapack_complex_double *df, const lapack_complex_double *duf, const lapack_complex_double *du2, const lapack_int *ipiv, const lapack_complex_double *b, lapack_int ldb, lapack_complex_double *x, lapack_int ldx, double *ferr, double *berr, lapack_complex_double *work, double *rwork)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
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)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
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