LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zgeqrt3_work()

lapack_int LAPACKE_zgeqrt3_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double t,
lapack_int  ldt 
)

Definition at line 35 of file lapacke_zgeqrt3_work.c.

38{
39 lapack_int info = 0;
40 if( matrix_layout == LAPACK_COL_MAJOR ) {
41 /* Call LAPACK function and adjust info */
42 LAPACK_zgeqrt3( &m, &n, a, &lda, t, &ldt, &info );
43 if( info < 0 ) {
44 info = info - 1;
45 }
46 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
47 lapack_int lda_t = MAX(1,m);
48 lapack_int ldt_t = MAX(1,n);
49 lapack_complex_double* a_t = NULL;
50 lapack_complex_double* t_t = NULL;
51 /* Check leading dimension(s) */
52 if( lda < n ) {
53 info = -5;
54 LAPACKE_xerbla( "LAPACKE_zgeqrt3_work", info );
55 return info;
56 }
57 if( ldt < n ) {
58 info = -7;
59 LAPACKE_xerbla( "LAPACKE_zgeqrt3_work", info );
60 return info;
61 }
62 /* Allocate memory for temporary array(s) */
64 LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
65 if( a_t == NULL ) {
67 goto exit_level_0;
68 }
70 LAPACKE_malloc( sizeof(lapack_complex_double) * ldt_t * MAX(1,n) );
71 if( t_t == NULL ) {
73 goto exit_level_1;
74 }
75 /* Transpose input matrices */
76 LAPACKE_zge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
77 /* Call LAPACK function and adjust info */
78 LAPACK_zgeqrt3( &m, &n, a_t, &lda_t, t_t, &ldt_t, &info );
79 if( info < 0 ) {
80 info = info - 1;
81 }
82 /* Transpose output matrices */
83 LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
84 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, t_t, ldt_t, t, ldt );
85 /* Release memory and exit */
86 LAPACKE_free( t_t );
87exit_level_1:
88 LAPACKE_free( a_t );
89exit_level_0:
90 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
91 LAPACKE_xerbla( "LAPACKE_zgeqrt3_work", info );
92 }
93 } else {
94 info = -1;
95 LAPACKE_xerbla( "LAPACKE_zgeqrt3_work", info );
96 }
97 return info;
98}
#define LAPACK_zgeqrt3
Definition: lapack.h:2961
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_double
Definition: lapack.h:64
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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