LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_sggsvp()

lapack_int LAPACKE_sggsvp ( int  matrix_layout,
char  jobu,
char  jobv,
char  jobq,
lapack_int  m,
lapack_int  p,
lapack_int  n,
float *  a,
lapack_int  lda,
float *  b,
lapack_int  ldb,
float  tola,
float  tolb,
lapack_int k,
lapack_int l,
float *  u,
lapack_int  ldu,
float *  v,
lapack_int  ldv,
float *  q,
lapack_int  ldq 
)

Definition at line 35 of file lapacke_sggsvp.c.

41{
42 lapack_int info = 0;
43 lapack_int* iwork = NULL;
44 float* tau = NULL;
45 float* work = NULL;
46 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47 LAPACKE_xerbla( "LAPACKE_sggsvp", -1 );
48 return -1;
49 }
50#ifndef LAPACK_DISABLE_NAN_CHECK
51 if( LAPACKE_get_nancheck() ) {
52 /* Optionally check input matrices for NaNs */
53 if( LAPACKE_sge_nancheck( matrix_layout, m, n, a, lda ) ) {
54 return -8;
55 }
56 if( LAPACKE_sge_nancheck( matrix_layout, p, n, b, ldb ) ) {
57 return -10;
58 }
59 if( LAPACKE_s_nancheck( 1, &tola, 1 ) ) {
60 return -12;
61 }
62 if( LAPACKE_s_nancheck( 1, &tolb, 1 ) ) {
63 return -13;
64 }
65 }
66#endif
67 /* Allocate memory for working array(s) */
68 iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
69 if( iwork == NULL ) {
71 goto exit_level_0;
72 }
73 tau = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
74 if( tau == NULL ) {
76 goto exit_level_1;
77 }
78 work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,MAX3(3*n,m,p)) );
79 if( work == NULL ) {
81 goto exit_level_2;
82 }
83 /* Call middle-level interface */
84 info = LAPACKE_sggsvp_work( matrix_layout, jobu, jobv, jobq, m, p, n, a, lda,
85 b, ldb, tola, tolb, k, l, u, ldu, v, ldv, q,
86 ldq, iwork, tau, work );
87 /* Release memory and exit */
88 LAPACKE_free( work );
89exit_level_2:
90 LAPACKE_free( tau );
91exit_level_1:
92 LAPACKE_free( iwork );
93exit_level_0:
94 if( info == LAPACK_WORK_MEMORY_ERROR ) {
95 LAPACKE_xerbla( "LAPACKE_sggsvp", info );
96 }
97 return info;
98}
#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
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_int LAPACKE_sggsvp_work(int matrix_layout, char jobu, char jobv, char jobq, lapack_int m, lapack_int p, lapack_int n, float *a, lapack_int lda, float *b, lapack_int ldb, float tola, float tolb, lapack_int *k, lapack_int *l, float *u, lapack_int ldu, float *v, lapack_int ldv, float *q, lapack_int ldq, lapack_int *iwork, float *tau, float *work)
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
#define MAX3(x, y, z)
Definition: lapacke_utils.h:52
#define MAX(x, y)
Definition: lapacke_utils.h:46
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