LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_dggglm()

lapack_int LAPACKE_dggglm ( int  matrix_layout,
lapack_int  n,
lapack_int  m,
lapack_int  p,
double *  a,
lapack_int  lda,
double *  b,
lapack_int  ldb,
double *  d,
double *  x,
double *  y 
)

Definition at line 35 of file lapacke_dggglm.c.

38{
39 lapack_int info = 0;
40 lapack_int lwork = -1;
41 double* work = NULL;
42 double work_query;
43 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
44 LAPACKE_xerbla( "LAPACKE_dggglm", -1 );
45 return -1;
46 }
47#ifndef LAPACK_DISABLE_NAN_CHECK
48 if( LAPACKE_get_nancheck() ) {
49 /* Optionally check input matrices for NaNs */
50 if( LAPACKE_dge_nancheck( matrix_layout, n, m, a, lda ) ) {
51 return -5;
52 }
53 if( LAPACKE_dge_nancheck( matrix_layout, n, p, b, ldb ) ) {
54 return -7;
55 }
56 if( LAPACKE_d_nancheck( n, d, 1 ) ) {
57 return -9;
58 }
59 }
60#endif
61 /* Query optimal working array(s) size */
62 info = LAPACKE_dggglm_work( matrix_layout, n, m, p, a, lda, b, ldb, d, x, y,
63 &work_query, lwork );
64 if( info != 0 ) {
65 goto exit_level_0;
66 }
67 lwork = (lapack_int)work_query;
68 /* Allocate memory for work arrays */
69 work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
70 if( work == NULL ) {
72 goto exit_level_0;
73 }
74 /* Call middle-level interface */
75 info = LAPACKE_dggglm_work( matrix_layout, n, m, p, a, lda, b, ldb, d, x, y,
76 work, lwork );
77 /* Release memory and exit */
78 LAPACKE_free( work );
79exit_level_0:
80 if( info == LAPACK_WORK_MEMORY_ERROR ) {
81 LAPACKE_xerbla( "LAPACKE_dggglm", info );
82 }
83 return info;
84}
#define lapack_int
Definition: lapack.h:87
#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_dggglm_work(int matrix_layout, lapack_int n, lapack_int m, lapack_int p, double *a, lapack_int lda, double *b, lapack_int ldb, double *d, double *x, double *y, double *work, lapack_int lwork)
#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_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
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