LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_cgbrfs()

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 
)

Definition at line 35 of file lapacke_cgbrfs.c.

43{
44 lapack_int info = 0;
45 float* rwork = NULL;
46 lapack_complex_float* work = NULL;
47 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48 LAPACKE_xerbla( "LAPACKE_cgbrfs", -1 );
49 return -1;
50 }
51#ifndef LAPACK_DISABLE_NAN_CHECK
52 if( LAPACKE_get_nancheck() ) {
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 }
67#endif
68 /* Allocate memory for working array(s) */
69 rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
70 if( rwork == NULL ) {
72 goto exit_level_0;
73 }
74 work = (lapack_complex_float*)
75 LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
76 if( work == NULL ) {
78 goto exit_level_1;
79 }
80 /* Call middle-level interface */
81 info = LAPACKE_cgbrfs_work( matrix_layout, trans, n, kl, ku, nrhs, ab, ldab,
82 afb, ldafb, ipiv, b, ldb, x, ldx, ferr, berr,
83 work, rwork );
84 /* Release memory and exit */
85 LAPACKE_free( work );
86exit_level_1:
87 LAPACKE_free( rwork );
88exit_level_0:
89 if( info == LAPACK_WORK_MEMORY_ERROR ) {
90 LAPACKE_xerbla( "LAPACKE_cgbrfs", info );
91 }
92 return info;
93}
#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
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 LAPACK_ROW_MAJOR
Definition: lapacke.h:52
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_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 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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