LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_cgels()

lapack_int LAPACKE_cgels ( int  matrix_layout,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  nrhs,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float b,
lapack_int  ldb 
)

Definition at line 35 of file lapacke_cgels.c.

39{
40 lapack_int info = 0;
41 lapack_int lwork = -1;
42 lapack_complex_float* work = NULL;
43 lapack_complex_float work_query;
44 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45 LAPACKE_xerbla( "LAPACKE_cgels", -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_cge_nancheck( matrix_layout, m, n, a, lda ) ) {
52 return -6;
53 }
54 if( LAPACKE_cge_nancheck( matrix_layout, MAX(m,n), nrhs, b, ldb ) ) {
55 return -8;
56 }
57 }
58#endif
59 /* Query optimal working array(s) size */
60 info = LAPACKE_cgels_work( matrix_layout, trans, m, n, nrhs, a, lda, b, ldb,
61 &work_query, lwork );
62 if( info != 0 ) {
63 goto exit_level_0;
64 }
65 lwork = LAPACK_C2INT( work_query );
66 /* Allocate memory for work arrays */
67 work = (lapack_complex_float*)
68 LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
69 if( work == NULL ) {
71 goto exit_level_0;
72 }
73 /* Call middle-level interface */
74 info = LAPACKE_cgels_work( matrix_layout, trans, m, n, nrhs, a, lda, b, ldb,
75 work, lwork );
76 /* Release memory and exit */
77 LAPACKE_free( work );
78exit_level_0:
79 if( info == LAPACK_WORK_MEMORY_ERROR ) {
80 LAPACKE_xerbla( "LAPACKE_cgels", info );
81 }
82 return info;
83}
#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 LAPACK_C2INT(x)
Definition: lapacke.h:49
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_int LAPACKE_cgels_work(int matrix_layout, char trans, lapack_int m, lapack_int n, lapack_int nrhs, lapack_complex_float *a, lapack_int lda, lapack_complex_float *b, lapack_int ldb, lapack_complex_float *work, lapack_int lwork)
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
#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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