lapacke_zhbgv_work.c
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00001 /*****************************************************************************
00002   Copyright (c) 2010, Intel Corp.
00003   All rights reserved.
00004 
00005   Redistribution and use in source and binary forms, with or without
00006   modification, are permitted provided that the following conditions are met:
00007 
00008     * Redistributions of source code must retain the above copyright notice,
00009       this list of conditions and the following disclaimer.
00010     * Redistributions in binary form must reproduce the above copyright
00011       notice, this list of conditions and the following disclaimer in the
00012       documentation and/or other materials provided with the distribution.
00013     * Neither the name of Intel Corporation nor the names of its contributors
00014       may be used to endorse or promote products derived from this software
00015       without specific prior written permission.
00016 
00017   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00021   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
00027   THE POSSIBILITY OF SUCH DAMAGE.
00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function zhbgv
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_zhbgv_work( int matrix_order, char jobz, char uplo,
00038                                lapack_int n, lapack_int ka, lapack_int kb,
00039                                lapack_complex_double* ab, lapack_int ldab,
00040                                lapack_complex_double* bb, lapack_int ldbb,
00041                                double* w, lapack_complex_double* z,
00042                                lapack_int ldz, lapack_complex_double* work,
00043                                double* rwork )
00044 {
00045     lapack_int info = 0;
00046     if( matrix_order == LAPACK_COL_MAJOR ) {
00047         /* Call LAPACK function and adjust info */
00048         LAPACK_zhbgv( &jobz, &uplo, &n, &ka, &kb, ab, &ldab, bb, &ldbb, w, z,
00049                       &ldz, work, rwork, &info );
00050         if( info < 0 ) {
00051             info = info - 1;
00052         }
00053     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00054         lapack_int ldab_t = MAX(1,ka+1);
00055         lapack_int ldbb_t = MAX(1,kb+1);
00056         lapack_int ldz_t = MAX(1,n);
00057         lapack_complex_double* ab_t = NULL;
00058         lapack_complex_double* bb_t = NULL;
00059         lapack_complex_double* z_t = NULL;
00060         /* Check leading dimension(s) */
00061         if( ldab < n ) {
00062             info = -8;
00063             LAPACKE_xerbla( "LAPACKE_zhbgv_work", info );
00064             return info;
00065         }
00066         if( ldbb < n ) {
00067             info = -10;
00068             LAPACKE_xerbla( "LAPACKE_zhbgv_work", info );
00069             return info;
00070         }
00071         if( ldz < n ) {
00072             info = -13;
00073             LAPACKE_xerbla( "LAPACKE_zhbgv_work", info );
00074             return info;
00075         }
00076         /* Allocate memory for temporary array(s) */
00077         ab_t = (lapack_complex_double*)
00078             LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
00079         if( ab_t == NULL ) {
00080             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00081             goto exit_level_0;
00082         }
00083         bb_t = (lapack_complex_double*)
00084             LAPACKE_malloc( sizeof(lapack_complex_double) * ldbb_t * MAX(1,n) );
00085         if( bb_t == NULL ) {
00086             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00087             goto exit_level_1;
00088         }
00089         if( LAPACKE_lsame( jobz, 'v' ) ) {
00090             z_t = (lapack_complex_double*)
00091                 LAPACKE_malloc( sizeof(lapack_complex_double) *
00092                                 ldz_t * MAX(1,n) );
00093             if( z_t == NULL ) {
00094                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00095                 goto exit_level_2;
00096             }
00097         }
00098         /* Transpose input matrices */
00099         LAPACKE_zhb_trans( matrix_order, uplo, n, ka, ab, ldab, ab_t, ldab_t );
00100         LAPACKE_zhb_trans( matrix_order, uplo, n, kb, bb, ldbb, bb_t, ldbb_t );
00101         /* Call LAPACK function and adjust info */
00102         LAPACK_zhbgv( &jobz, &uplo, &n, &ka, &kb, ab_t, &ldab_t, bb_t, &ldbb_t,
00103                       w, z_t, &ldz_t, work, rwork, &info );
00104         if( info < 0 ) {
00105             info = info - 1;
00106         }
00107         /* Transpose output matrices */
00108         LAPACKE_zhb_trans( LAPACK_COL_MAJOR, uplo, n, ka, ab_t, ldab_t, ab,
00109                            ldab );
00110         LAPACKE_zhb_trans( LAPACK_COL_MAJOR, uplo, n, kb, bb_t, ldbb_t, bb,
00111                            ldbb );
00112         if( LAPACKE_lsame( jobz, 'v' ) ) {
00113             LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
00114         }
00115         /* Release memory and exit */
00116         if( LAPACKE_lsame( jobz, 'v' ) ) {
00117             LAPACKE_free( z_t );
00118         }
00119 exit_level_2:
00120         LAPACKE_free( bb_t );
00121 exit_level_1:
00122         LAPACKE_free( ab_t );
00123 exit_level_0:
00124         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00125             LAPACKE_xerbla( "LAPACKE_zhbgv_work", info );
00126         }
00127     } else {
00128         info = -1;
00129         LAPACKE_xerbla( "LAPACKE_zhbgv_work", info );
00130     }
00131     return info;
00132 }


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autogenerated on Sat Jun 8 2019 18:55:55