LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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lapacke_dtprfb.c File Reference
#include "lapacke_utils.h"
Include dependency graph for lapacke_dtprfb.c:

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Functions/Subroutines

lapack_int LAPACKE_dtprfb (int matrix_order, char side, char trans, char direct, char storev, lapack_int m, lapack_int n, lapack_int k, lapack_int l, const double *v, lapack_int ldv, const double *t, lapack_int ldt, double *a, lapack_int lda, double *b, lapack_int ldb)

Function/Subroutine Documentation

lapack_int LAPACKE_dtprfb ( int  matrix_order,
char  side,
char  trans,
char  direct,
char  storev,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  l,
const double *  v,
lapack_int  ldv,
const double *  t,
lapack_int  ldt,
double *  a,
lapack_int  lda,
double *  b,
lapack_int  ldb 
)

Definition at line 36 of file lapacke_dtprfb.c.

{
lapack_int info = 0;
lapack_int ldwork;
lapack_int work_size;
double* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dtprfb", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dge_nancheck( matrix_order, k, m, a, lda ) ) {
return -14;
}
if( LAPACKE_dge_nancheck( matrix_order, m, n, b, ldb ) ) {
return -16;
}
if( LAPACKE_dge_nancheck( matrix_order, ldt, k, t, ldt ) ) {
return -12;
}
if( LAPACKE_dge_nancheck( matrix_order, ldv, k, v, ldv ) ) {
return -10;
}
#endif
if (side=='l' || side=='L') {
ldwork = k;
work_size = MAX(1,ldwork) * MAX(1,n);
}
else {
ldwork = m;
work_size = MAX(1,ldwork) * MAX(1,k);
}
/* Allocate memory for working array(s) */
work = (double*)
LAPACKE_malloc( sizeof(double) * MAX(1,ldwork) * MAX(n,k) );
if( work == NULL ) {
goto exit_level_0;
}
/* Call middle-level interface */
info = LAPACKE_dtprfb_work( matrix_order, side, trans, direct, storev, m, n,
k, l, v, ldv, t, ldt, a, lda, b, ldb, work,
ldwork );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dtprfb", info );
}
return info;
}

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