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

lapack_int LAPACKE_dopmtr (int matrix_order, char side, char uplo, char trans, lapack_int m, lapack_int n, const double *ap, const double *tau, double *c, lapack_int ldc)

Function/Subroutine Documentation

lapack_int LAPACKE_dopmtr ( int  matrix_order,
char  side,
char  uplo,
char  trans,
lapack_int  m,
lapack_int  n,
const double *  ap,
const double *  tau,
double *  c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_dopmtr.c.

{
lapack_int info = 0;
/* Additional scalars declarations for work arrays */
lapack_int lwork;
double* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dopmtr", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
r = LAPACKE_lsame( side, 'l' ) ? m : n;
if( LAPACKE_dsp_nancheck( r, ap ) ) {
return -7;
}
if( LAPACKE_dge_nancheck( matrix_order, m, n, c, ldc ) ) {
return -9;
}
if( LAPACKE_d_nancheck( m-1, tau, 1 ) ) {
return -8;
}
#endif
/* Additional scalars initializations for work arrays */
if( LAPACKE_lsame( side, 'l' ) ) {
lwork = MAX(1,n);
} else if( LAPACKE_lsame( side, 'r' ) ) {
lwork = MAX(1,m);
} else {
lwork = 1; /* Any value */
}
/* Allocate memory for working array(s) */
work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
if( work == NULL ) {
goto exit_level_0;
}
/* Call middle-level interface */
info = LAPACKE_dopmtr_work( matrix_order, side, uplo, trans, m, n, ap, tau,
c, ldc, work );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dopmtr", info );
}
return info;
}

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