LAPACK 3.11.0 LAPACK: Linear Algebra PACKage
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◆ LAPACKE_cunmhr()

 lapack_int LAPACKE_cunmhr ( int matrix_layout, char side, char trans, lapack_int m, lapack_int n, lapack_int ilo, lapack_int ihi, const lapack_complex_float * a, lapack_int lda, const lapack_complex_float * tau, lapack_complex_float * c, lapack_int ldc )

Definition at line 35 of file lapacke_cunmhr.c.

40{
41 lapack_int info = 0;
42 lapack_int lwork = -1;
43 lapack_complex_float* work = NULL;
44 lapack_complex_float work_query;
45 lapack_int r;
46 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47 LAPACKE_xerbla( "LAPACKE_cunmhr", -1 );
48 return -1;
49 }
50#ifndef LAPACK_DISABLE_NAN_CHECK
51 if( LAPACKE_get_nancheck() ) {
52 /* Optionally check input matrices for NaNs */
53 r = LAPACKE_lsame( side, 'l' ) ? m : n;
54 if( LAPACKE_cge_nancheck( matrix_layout, r, r, a, lda ) ) {
55 return -8;
56 }
57 if( LAPACKE_cge_nancheck( matrix_layout, m, n, c, ldc ) ) {
58 return -11;
59 }
60 if( LAPACKE_c_nancheck( r-1, tau, 1 ) ) {
61 return -10;
62 }
63 }
64#endif
65 /* Query optimal working array(s) size */
66 info = LAPACKE_cunmhr_work( matrix_layout, side, trans, m, n, ilo, ihi, a,
67 lda, tau, c, ldc, &work_query, lwork );
68 if( info != 0 ) {
69 goto exit_level_0;
70 }
71 lwork = LAPACK_C2INT( work_query );
72 /* Allocate memory for work arrays */
73 work = (lapack_complex_float*)
74 LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
75 if( work == NULL ) {
77 goto exit_level_0;
78 }
79 /* Call middle-level interface */
80 info = LAPACKE_cunmhr_work( matrix_layout, side, trans, m, n, ilo, ihi, a,
81 lda, tau, c, ldc, work, lwork );
82 /* Release memory and exit */
83 LAPACKE_free( work );
84exit_level_0:
85 if( info == LAPACK_WORK_MEMORY_ERROR ) {
86 LAPACKE_xerbla( "LAPACKE_cunmhr", info );
87 }
88 return info;
89}
#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
lapack_int LAPACKE_cunmhr_work(int matrix_layout, char side, char trans, lapack_int m, lapack_int n, lapack_int ilo, lapack_int ihi, const lapack_complex_float *a, lapack_int lda, const lapack_complex_float *tau, lapack_complex_float *c, lapack_int ldc, lapack_complex_float *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
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_c_nancheck(lapack_int n, const lapack_complex_float *x, lapack_int incx)
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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