LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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lapacke_dgbbrd.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_dgbbrd (int matrix_order, char vect, lapack_int m, lapack_int n, lapack_int ncc, lapack_int kl, lapack_int ku, double *ab, lapack_int ldab, double *d, double *e, double *q, lapack_int ldq, double *pt, lapack_int ldpt, double *c, lapack_int ldc)

Function/Subroutine Documentation

lapack_int LAPACKE_dgbbrd ( int  matrix_order,
char  vect,
lapack_int  m,
lapack_int  n,
lapack_int  ncc,
lapack_int  kl,
lapack_int  ku,
double *  ab,
lapack_int  ldab,
double *  d,
double *  e,
double *  q,
lapack_int  ldq,
double *  pt,
lapack_int  ldpt,
double *  c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_dgbbrd.c.

{
lapack_int info = 0;
double* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dgbbrd", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dgb_nancheck( matrix_order, m, n, kl, ku, ab, ldab ) ) {
return -8;
}
if( ncc != 0 ) {
if( LAPACKE_dge_nancheck( matrix_order, m, ncc, c, ldc ) ) {
return -16;
}
}
#endif
/* Allocate memory for working array(s) */
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*MAX(m,n)) );
if( work == NULL ) {
goto exit_level_0;
}
/* Call middle-level interface */
info = LAPACKE_dgbbrd_work( matrix_order, vect, m, n, ncc, kl, ku, ab, ldab,
d, e, q, ldq, pt, ldpt, c, ldc, work );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dgbbrd", info );
}
return info;
}

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