lapacke_dgghrd.c

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* Contents: Native high-level C interface to LAPACK function dgghrd
* Author: Intel Corporation
* Generated November 2015
*****************************************************************************/
 
#include "lapacke_utils.h"
 
lapack_int LAPACKE_dgghrd( int matrix_layout, char compq, char compz,
                           lapack_int n, lapack_int ilo, lapack_int ihi,
                           double* a, lapack_int lda, double* b, lapack_int ldb,
                           double* q, lapack_int ldq, double* z,
                           lapack_int ldz )
{
    if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
        LAPACKE_xerbla( "LAPACKE_dgghrd", -1 );
        return -1;
    }
#ifndef LAPACK_DISABLE_NAN_CHECK
    if( LAPACKE_get_nancheck() ) {
        /* Optionally check input matrices for NaNs */
        if( LAPACKE_dge_nancheck( matrix_layout, n, n, a, lda ) ) {
            return -7;
        }
        if( LAPACKE_dge_nancheck( matrix_layout, n, n, b, ldb ) ) {
            return -9;
        }
        if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
            if( LAPACKE_dge_nancheck( matrix_layout, n, n, q, ldq ) ) {
                return -11;
            }
        }
        if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
            if( LAPACKE_dge_nancheck( matrix_layout, n, n, z, ldz ) ) {
                return -13;
            }
        }
    }
#endif
    return LAPACKE_dgghrd_work( matrix_layout, compq, compz, n, ilo, ihi, a, lda,
                                b, ldb, q, ldq, z, ldz );
}