LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_dposvx()

lapack_int LAPACKE_dposvx ( int  matrix_layout,
char  fact,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
double *  a,
lapack_int  lda,
double *  af,
lapack_int  ldaf,
char *  equed,
double *  s,
double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
double *  rcond,
double *  ferr,
double *  berr 
)

Definition at line 35 of file lapacke_dposvx.c.

40{
41 lapack_int info = 0;
42 lapack_int* iwork = NULL;
43 double* work = NULL;
44 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45 LAPACKE_xerbla( "LAPACKE_dposvx", -1 );
46 return -1;
47 }
48#ifndef LAPACK_DISABLE_NAN_CHECK
49 if( LAPACKE_get_nancheck() ) {
50 /* Optionally check input matrices for NaNs */
51 if( LAPACKE_dpo_nancheck( matrix_layout, uplo, n, a, lda ) ) {
52 return -6;
53 }
54 if( LAPACKE_lsame( fact, 'f' ) ) {
55 if( LAPACKE_dpo_nancheck( matrix_layout, uplo, n, af, ldaf ) ) {
56 return -8;
57 }
58 }
59 if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
60 return -12;
61 }
62 if( LAPACKE_lsame( fact, 'f' ) && LAPACKE_lsame( *equed, 'y' ) ) {
63 if( LAPACKE_d_nancheck( n, s, 1 ) ) {
64 return -11;
65 }
66 }
67 }
68#endif
69 /* Allocate memory for working array(s) */
70 iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
71 if( iwork == NULL ) {
73 goto exit_level_0;
74 }
75 work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
76 if( work == NULL ) {
78 goto exit_level_1;
79 }
80 /* Call middle-level interface */
81 info = LAPACKE_dposvx_work( matrix_layout, fact, uplo, n, nrhs, a, lda, af,
82 ldaf, equed, s, b, ldb, x, ldx, rcond, ferr,
83 berr, work, iwork );
84 /* Release memory and exit */
85 LAPACKE_free( work );
86exit_level_1:
87 LAPACKE_free( iwork );
88exit_level_0:
89 if( info == LAPACK_WORK_MEMORY_ERROR ) {
90 LAPACKE_xerbla( "LAPACKE_dposvx", info );
91 }
92 return info;
93}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
lapack_int LAPACKE_dposvx_work(int matrix_layout, char fact, char uplo, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *af, lapack_int ldaf, char *equed, double *s, double *b, lapack_int ldb, double *x, lapack_int ldx, double *rcond, double *ferr, double *berr, double *work, lapack_int *iwork)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_dpo_nancheck(int matrix_layout, char uplo, lapack_int n, const double *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
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