LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_cptrfs()

lapack_int LAPACKE_cptrfs ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const float *  d,
const lapack_complex_float e,
const float *  df,
const lapack_complex_float ef,
const lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float x,
lapack_int  ldx,
float *  ferr,
float *  berr 
)

Definition at line 35 of file lapacke_cptrfs.c.

42{
43 lapack_int info = 0;
44 float* rwork = NULL;
45 lapack_complex_float* work = NULL;
46 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47 LAPACKE_xerbla( "LAPACKE_cptrfs", -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_cge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
54 return -9;
55 }
56 if( LAPACKE_s_nancheck( n, d, 1 ) ) {
57 return -5;
58 }
59 if( LAPACKE_s_nancheck( n, df, 1 ) ) {
60 return -7;
61 }
62 if( LAPACKE_c_nancheck( n-1, e, 1 ) ) {
63 return -6;
64 }
65 if( LAPACKE_c_nancheck( n-1, ef, 1 ) ) {
66 return -8;
67 }
68 if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
69 return -11;
70 }
71 }
72#endif
73 /* Allocate memory for working array(s) */
74 rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
75 if( rwork == NULL ) {
77 goto exit_level_0;
78 }
79 work = (lapack_complex_float*)
80 LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
81 if( work == NULL ) {
83 goto exit_level_1;
84 }
85 /* Call middle-level interface */
86 info = LAPACKE_cptrfs_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_cptrfs", info );
95 }
96 return info;
97}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_float
Definition: lapack.h:46
#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_cptrfs_work(int matrix_layout, char uplo, lapack_int n, lapack_int nrhs, const float *d, const lapack_complex_float *e, const float *df, const lapack_complex_float *ef, const lapack_complex_float *b, lapack_int ldb, lapack_complex_float *x, lapack_int ldx, float *ferr, float *berr, lapack_complex_float *work, float *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_c_nancheck(lapack_int n, const lapack_complex_float *x, lapack_int incx)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#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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