LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zgetri_work()

lapack_int LAPACKE_zgetri_work ( int  matrix_layout,
lapack_int  n,
lapack_complex_double a,
lapack_int  lda,
const lapack_int ipiv,
lapack_complex_double work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_zgetri_work.c.

39{
40 lapack_int info = 0;
41 if( matrix_layout == LAPACK_COL_MAJOR ) {
42 /* Call LAPACK function and adjust info */
43 LAPACK_zgetri( &n, a, &lda, ipiv, work, &lwork, &info );
44 if( info < 0 ) {
45 info = info - 1;
46 }
47 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
48 lapack_int lda_t = MAX(1,n);
49 lapack_complex_double* a_t = NULL;
50 /* Check leading dimension(s) */
51 if( lda < n ) {
52 info = -4;
53 LAPACKE_xerbla( "LAPACKE_zgetri_work", info );
54 return info;
55 }
56 /* Query optimal working array(s) size if requested */
57 if( lwork == -1 ) {
58 LAPACK_zgetri( &n, a, &lda_t, ipiv, work, &lwork, &info );
59 return (info < 0) ? (info - 1) : info;
60 }
61 /* Allocate memory for temporary array(s) */
63 LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
64 if( a_t == NULL ) {
66 goto exit_level_0;
67 }
68 /* Transpose input matrices */
69 LAPACKE_zge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
70 /* Call LAPACK function and adjust info */
71 LAPACK_zgetri( &n, a_t, &lda_t, ipiv, work, &lwork, &info );
72 if( info < 0 ) {
73 info = info - 1;
74 }
75 /* Transpose output matrices */
76 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
77 /* Release memory and exit */
78 LAPACKE_free( a_t );
79exit_level_0:
80 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
81 LAPACKE_xerbla( "LAPACKE_zgetri_work", info );
82 }
83 } else {
84 info = -1;
85 LAPACKE_xerbla( "LAPACKE_zgetri_work", info );
86 }
87 return info;
88}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_zgetri
Definition: lapack.h:4035
#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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