lapacke_dsbgv_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
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00023   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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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 dsbgv
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_dsbgv_work( int matrix_order, char jobz, char uplo,
00038                                lapack_int n, lapack_int ka, lapack_int kb,
00039                                double* ab, lapack_int ldab, double* bb,
00040                                lapack_int ldbb, double* w, double* z,
00041                                lapack_int ldz, double* work )
00042 {
00043     lapack_int info = 0;
00044     if( matrix_order == LAPACK_COL_MAJOR ) {
00045         /* Call LAPACK function and adjust info */
00046         LAPACK_dsbgv( &jobz, &uplo, &n, &ka, &kb, ab, &ldab, bb, &ldbb, w, z,
00047                       &ldz, work, &info );
00048         if( info < 0 ) {
00049             info = info - 1;
00050         }
00051     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00052         lapack_int ldab_t = MAX(1,ka+1);
00053         lapack_int ldbb_t = MAX(1,kb+1);
00054         lapack_int ldz_t = MAX(1,n);
00055         double* ab_t = NULL;
00056         double* bb_t = NULL;
00057         double* z_t = NULL;
00058         /* Check leading dimension(s) */
00059         if( ldab < n ) {
00060             info = -8;
00061             LAPACKE_xerbla( "LAPACKE_dsbgv_work", info );
00062             return info;
00063         }
00064         if( ldbb < n ) {
00065             info = -10;
00066             LAPACKE_xerbla( "LAPACKE_dsbgv_work", info );
00067             return info;
00068         }
00069         if( ldz < n ) {
00070             info = -13;
00071             LAPACKE_xerbla( "LAPACKE_dsbgv_work", info );
00072             return info;
00073         }
00074         /* Allocate memory for temporary array(s) */
00075         ab_t = (double*)LAPACKE_malloc( sizeof(double) * ldab_t * MAX(1,n) );
00076         if( ab_t == NULL ) {
00077             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00078             goto exit_level_0;
00079         }
00080         bb_t = (double*)LAPACKE_malloc( sizeof(double) * ldbb_t * MAX(1,n) );
00081         if( bb_t == NULL ) {
00082             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00083             goto exit_level_1;
00084         }
00085         if( LAPACKE_lsame( jobz, 'v' ) ) {
00086             z_t = (double*)LAPACKE_malloc( sizeof(double) * ldz_t * MAX(1,n) );
00087             if( z_t == NULL ) {
00088                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00089                 goto exit_level_2;
00090             }
00091         }
00092         /* Transpose input matrices */
00093         LAPACKE_dsb_trans( matrix_order, uplo, n, ka, ab, ldab, ab_t, ldab_t );
00094         LAPACKE_dsb_trans( matrix_order, uplo, n, kb, bb, ldbb, bb_t, ldbb_t );
00095         /* Call LAPACK function and adjust info */
00096         LAPACK_dsbgv( &jobz, &uplo, &n, &ka, &kb, ab_t, &ldab_t, bb_t, &ldbb_t,
00097                       w, z_t, &ldz_t, work, &info );
00098         if( info < 0 ) {
00099             info = info - 1;
00100         }
00101         /* Transpose output matrices */
00102         LAPACKE_dsb_trans( LAPACK_COL_MAJOR, uplo, n, ka, ab_t, ldab_t, ab,
00103                            ldab );
00104         LAPACKE_dsb_trans( LAPACK_COL_MAJOR, uplo, n, kb, bb_t, ldbb_t, bb,
00105                            ldbb );
00106         if( LAPACKE_lsame( jobz, 'v' ) ) {
00107             LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
00108         }
00109         /* Release memory and exit */
00110         if( LAPACKE_lsame( jobz, 'v' ) ) {
00111             LAPACKE_free( z_t );
00112         }
00113 exit_level_2:
00114         LAPACKE_free( bb_t );
00115 exit_level_1:
00116         LAPACKE_free( ab_t );
00117 exit_level_0:
00118         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00119             LAPACKE_xerbla( "LAPACKE_dsbgv_work", info );
00120         }
00121     } else {
00122         info = -1;
00123         LAPACKE_xerbla( "LAPACKE_dsbgv_work", info );
00124     }
00125     return info;
00126 }


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autogenerated on Sat Jun 8 2019 18:55:53