120 lines
5.2 KiB
C
120 lines
5.2 KiB
C
/*****************************************************************************
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Copyright (c) 2014, Intel Corp.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Intel Corporation nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************
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* Contents: Native high-level C interface to LAPACK function zbbcsd
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* Author: Intel Corporation
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* Generated June 2017
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*****************************************************************************/
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#include "lapacke_utils.h"
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lapack_int LAPACKE_zbbcsd( int matrix_layout, char jobu1, char jobu2,
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char jobv1t, char jobv2t, char trans, lapack_int m,
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lapack_int p, lapack_int q, double* theta,
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double* phi, lapack_complex_double* u1,
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lapack_int ldu1, lapack_complex_double* u2,
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lapack_int ldu2, lapack_complex_double* v1t,
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lapack_int ldv1t, lapack_complex_double* v2t,
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lapack_int ldv2t, double* b11d, double* b11e,
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double* b12d, double* b12e, double* b21d,
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double* b21e, double* b22d, double* b22e )
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{
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lapack_int info = 0;
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lapack_int lrwork = -1;
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double* rwork = NULL;
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double rwork_query;
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int lapack_layout;
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if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
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LAPACKE_xerbla( "LAPACKE_zbbcsd", -1 );
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return -1;
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}
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if( LAPACKE_lsame( trans, 'n' ) && matrix_layout == LAPACK_COL_MAJOR ) {
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lapack_layout = LAPACK_COL_MAJOR;
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} else {
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lapack_layout = LAPACK_ROW_MAJOR;
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}
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#ifndef LAPACK_DISABLE_NAN_CHECK
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if( LAPACKE_get_nancheck() ) {
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/* Optionally check input matrices for NaNs */
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if( LAPACKE_d_nancheck( q-1, phi, 1 ) ) {
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return -11;
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}
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if( LAPACKE_d_nancheck( q, theta, 1 ) ) {
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return -10;
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}
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if( LAPACKE_lsame( jobu1, 'y' ) ) {
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if( LAPACKE_zge_nancheck( lapack_layout, p, p, u1, ldu1 ) ) {
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return -12;
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}
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}
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if( LAPACKE_lsame( jobu2, 'y' ) ) {
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if( LAPACKE_zge_nancheck( lapack_layout, m-p, m-p, u2, ldu2 ) ) {
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return -14;
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}
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}
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if( LAPACKE_lsame( jobv1t, 'y' ) ) {
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if( LAPACKE_zge_nancheck( lapack_layout, q, q, v1t, ldv1t ) ) {
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return -16;
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}
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}
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if( LAPACKE_lsame( jobv2t, 'y' ) ) {
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if( LAPACKE_zge_nancheck( lapack_layout, m-q, m-q, v2t, ldv2t ) ) {
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return -18;
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}
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}
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}
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#endif
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/* Query optimal working array(s) size */
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info = LAPACKE_zbbcsd_work( matrix_layout, jobu1, jobu2, jobv1t, jobv2t,
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trans, m, p, q, theta, phi, u1, ldu1, u2, ldu2,
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v1t, ldv1t, v2t, ldv2t, b11d, b11e, b12d, b12e,
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b21d, b21e, b22d, b22e, &rwork_query, lrwork );
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if( info != 0 ) {
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goto exit_level_0;
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}
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lrwork = (lapack_int)rwork_query;
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/* Allocate memory for work arrays */
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rwork = (double*)LAPACKE_malloc( sizeof(double) * lrwork );
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if( rwork == NULL ) {
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info = LAPACK_WORK_MEMORY_ERROR;
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goto exit_level_0;
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}
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/* Call middle-level interface */
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info = LAPACKE_zbbcsd_work( matrix_layout, jobu1, jobu2, jobv1t, jobv2t,
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trans, m, p, q, theta, phi, u1, ldu1, u2, ldu2,
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v1t, ldv1t, v2t, ldv2t, b11d, b11e, b12d, b12e,
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b21d, b21e, b22d, b22e, rwork, lrwork );
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/* Release memory and exit */
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LAPACKE_free( rwork );
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exit_level_0:
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if( info == LAPACK_WORK_MEMORY_ERROR ) {
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LAPACKE_xerbla( "LAPACKE_zbbcsd", info );
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}
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return info;
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}
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