LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
Loading...
Searching...
No Matches

◆ LAPACKE_zgesvx()

lapack_int LAPACKE_zgesvx ( int  matrix_layout,
char  fact,
char  trans,
lapack_int  n,
lapack_int  nrhs,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double af,
lapack_int  ldaf,
lapack_int ipiv,
char *  equed,
double *  r,
double *  c,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double x,
lapack_int  ldx,
double *  rcond,
double *  ferr,
double *  berr,
double *  rpivot 
)

Definition at line 35 of file lapacke_zgesvx.c.

44{
45 lapack_int info = 0;
46 double* rwork = NULL;
47 lapack_complex_double* work = NULL;
48 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49 LAPACKE_xerbla( "LAPACKE_zgesvx", -1 );
50 return -1;
51 }
52#ifndef LAPACK_DISABLE_NAN_CHECK
53 if( LAPACKE_get_nancheck() ) {
54 /* Optionally check input matrices for NaNs */
55 if( LAPACKE_zge_nancheck( matrix_layout, n, n, a, lda ) ) {
56 return -6;
57 }
58 if( LAPACKE_lsame( fact, 'f' ) ) {
59 if( LAPACKE_zge_nancheck( matrix_layout, n, n, af, ldaf ) ) {
60 return -8;
61 }
62 }
63 if( LAPACKE_zge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
64 return -14;
65 }
66 if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
67 LAPACKE_lsame( *equed, 'c' ) ) ) {
68 if( LAPACKE_d_nancheck( n, c, 1 ) ) {
69 return -13;
70 }
71 }
72 if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
73 LAPACKE_lsame( *equed, 'r' ) ) ) {
74 if( LAPACKE_d_nancheck( n, r, 1 ) ) {
75 return -12;
76 }
77 }
78 }
79#endif
80 /* Allocate memory for working array(s) */
81 rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*n) );
82 if( rwork == NULL ) {
84 goto exit_level_0;
85 }
86 work = (lapack_complex_double*)
87 LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
88 if( work == NULL ) {
90 goto exit_level_1;
91 }
92 /* Call middle-level interface */
93 info = LAPACKE_zgesvx_work( matrix_layout, fact, trans, n, nrhs, a, lda, af,
94 ldaf, ipiv, equed, r, c, b, ldb, x, ldx, rcond,
95 ferr, berr, work, rwork );
96 /* Backup significant data from working array(s) */
97 *rpivot = rwork[0];
98 /* Release memory and exit */
99 LAPACKE_free( work );
100exit_level_1:
101 LAPACKE_free( rwork );
102exit_level_0:
103 if( info == LAPACK_WORK_MEMORY_ERROR ) {
104 LAPACKE_xerbla( "LAPACKE_zgesvx", info );
105 }
106 return info;
107}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_double
Definition: lapack.h:64
#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_zgesvx_work(int matrix_layout, char fact, char trans, lapack_int n, lapack_int nrhs, lapack_complex_double *a, lapack_int lda, lapack_complex_double *af, lapack_int ldaf, lapack_int *ipiv, char *equed, double *r, double *c, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *x, lapack_int ldx, double *rcond, double *ferr, double *berr, lapack_complex_double *work, double *rwork)
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_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
Here is the call graph for this function: