LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zptrfs()

lapack_int LAPACKE_zptrfs ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const double *  d,
const lapack_complex_double e,
const double *  df,
const lapack_complex_double ef,
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_zptrfs.c.

42{
43 lapack_int info = 0;
44 double* rwork = NULL;
45 lapack_complex_double* work = NULL;
46 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47 LAPACKE_xerbla( "LAPACKE_zptrfs", -1 );
48 return -1;
49 }
50#ifndef LAPACK_DISABLE_NAN_CHECK
51 if( LAPACKE_get_nancheck() ) {
52 /* Optionally check input matrices for NaNs */
53 if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
54 return -9;
55 }
56 if( LAPACKE_d_nancheck( n, d, 1 ) ) {
57 return -5;
58 }
59 if( LAPACKE_d_nancheck( n, df, 1 ) ) {
60 return -7;
61 }
62 if( LAPACKE_z_nancheck( n-1, e, 1 ) ) {
63 return -6;
64 }
65 if( LAPACKE_z_nancheck( n-1, ef, 1 ) ) {
66 return -8;
67 }
68 if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
69 return -11;
70 }
71 }
72#endif
73 /* Allocate memory for working array(s) */
74 rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
75 if( rwork == NULL ) {
77 goto exit_level_0;
78 }
79 work = (lapack_complex_double*)
81 if( work == NULL ) {
83 goto exit_level_1;
84 }
85 /* Call middle-level interface */
86 info = LAPACKE_zptrfs_work( matrix_layout, uplo, n, nrhs, d, e, df, ef, b,
87 ldb, x, ldx, ferr, berr, work, rwork );
88 /* Release memory and exit */
89 LAPACKE_free( work );
90exit_level_1:
91 LAPACKE_free( rwork );
92exit_level_0:
93 if( info == LAPACK_WORK_MEMORY_ERROR ) {
94 LAPACKE_xerbla( "LAPACKE_zptrfs", info );
95 }
96 return info;
97}
#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
lapack_int LAPACKE_zptrfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const double *d, const lapack_complex_double *e, const double *df, const lapack_complex_double *ef, 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)
int LAPACKE_get_nancheck(void)
#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)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#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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