LAPACK 3.11.0 LAPACK: Linear Algebra PACKage
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## ◆ LAPACKE_spbtrf_work()

 lapack_int LAPACKE_spbtrf_work ( int matrix_layout, char uplo, lapack_int n, lapack_int kd, float * ab, lapack_int ldab )

Definition at line 35 of file lapacke_spbtrf_work.c.

37{
38 lapack_int info = 0;
39 if( matrix_layout == LAPACK_COL_MAJOR ) {
40 /* Call LAPACK function and adjust info */
41 LAPACK_spbtrf( &uplo, &n, &kd, ab, &ldab, &info );
42 if( info < 0 ) {
43 info = info - 1;
44 }
45 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
46 lapack_int ldab_t = MAX(1,kd+1);
47 float* ab_t = NULL;
48 /* Check leading dimension(s) */
49 if( ldab < n ) {
50 info = -6;
51 LAPACKE_xerbla( "LAPACKE_spbtrf_work", info );
52 return info;
53 }
54 /* Allocate memory for temporary array(s) */
55 ab_t = (float*)LAPACKE_malloc( sizeof(float) * ldab_t * MAX(1,n) );
56 if( ab_t == NULL ) {
58 goto exit_level_0;
59 }
60 /* Transpose input matrices */
61 LAPACKE_spb_trans( matrix_layout, uplo, n, kd, ab, ldab, ab_t, ldab_t );
62 /* Call LAPACK function and adjust info */
63 LAPACK_spbtrf( &uplo, &n, &kd, ab_t, &ldab_t, &info );
64 if( info < 0 ) {
65 info = info - 1;
66 }
67 /* Transpose output matrices */
68 LAPACKE_spb_trans( LAPACK_COL_MAJOR, uplo, n, kd, ab_t, ldab_t, ab,
69 ldab );
70 /* Release memory and exit */
71 LAPACKE_free( ab_t );
72exit_level_0:
73 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
74 LAPACKE_xerbla( "LAPACKE_spbtrf_work", info );
75 }
76 } else {
77 info = -1;
78 LAPACKE_xerbla( "LAPACKE_spbtrf_work", info );
79 }
80 return info;
81}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_spbtrf(...)
Definition: lapack.h:12347
#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_spb_trans(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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