LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_cgbrfs.c
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28 *****************************************************************************
29 * Contents: Native high-level C interface to LAPACK function cgbrfs
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_cgbrfs( int matrix_layout, char trans, lapack_int n,
37  lapack_int kl, lapack_int ku, lapack_int nrhs,
38  const lapack_complex_float* ab, lapack_int ldab,
39  const lapack_complex_float* afb, lapack_int ldafb,
40  const lapack_int* ipiv,
41  const lapack_complex_float* b, lapack_int ldb,
42  lapack_complex_float* x, lapack_int ldx, float* ferr,
43  float* berr )
44 {
45  lapack_int info = 0;
46  float* rwork = NULL;
47  lapack_complex_float* work = NULL;
48  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49  LAPACKE_xerbla( "LAPACKE_cgbrfs", -1 );
50  return -1;
51  }
52 #ifndef LAPACK_DISABLE_NAN_CHECK
53  /* Optionally check input matrices for NaNs */
54  if( LAPACKE_cgb_nancheck( matrix_layout, n, n, kl, ku, ab, ldab ) ) {
55  return -7;
56  }
57  if( LAPACKE_cgb_nancheck( matrix_layout, n, n, kl, kl+ku, afb, ldafb ) ) {
58  return -9;
59  }
60  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
61  return -12;
62  }
63  if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
64  return -14;
65  }
66 #endif
67  /* Allocate memory for working array(s) */
68  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
69  if( rwork == NULL ) {
71  goto exit_level_0;
72  }
73  work = (lapack_complex_float*)
74  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
75  if( work == NULL ) {
77  goto exit_level_1;
78  }
79  /* Call middle-level interface */
80  info = LAPACKE_cgbrfs_work( matrix_layout, trans, n, kl, ku, nrhs, ab, ldab,
81  afb, ldafb, ipiv, b, ldb, x, ldx, ferr, berr,
82  work, rwork );
83  /* Release memory and exit */
84  LAPACKE_free( work );
85 exit_level_1:
86  LAPACKE_free( rwork );
87 exit_level_0:
88  if( info == LAPACK_WORK_MEMORY_ERROR ) {
89  LAPACKE_xerbla( "LAPACKE_cgbrfs", info );
90  }
91  return info;
92 }
lapack_int LAPACKE_cgbrfs(int matrix_layout, char trans, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, const lapack_complex_float *ab, lapack_int ldab, const lapack_complex_float *afb, lapack_int ldafb, const lapack_int *ipiv, const lapack_complex_float *b, lapack_int ldb, lapack_complex_float *x, lapack_int ldx, float *ferr, float *berr)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define lapack_complex_float
Definition: lapacke.h:74
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_int LAPACKE_cgbrfs_work(int matrix_layout, char trans, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, const lapack_complex_float *ab, lapack_int ldab, const lapack_complex_float *afb, lapack_int ldafb, const lapack_int *ipiv, 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)
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_cgb_nancheck(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const lapack_complex_float *ab, lapack_int ldab)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47