LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ 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 );
90 exit_level_1:
91  LAPACKE_free( rwork );
92 exit_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:83
#define lapack_complex_float
Definition: lapack.h:45
#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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