lapacke_dgbtrs_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 dgbtrs
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_dgbtrs_work( int matrix_order, char trans, lapack_int n,
00038                                 lapack_int kl, lapack_int ku, lapack_int nrhs,
00039                                 const double* ab, lapack_int ldab,
00040                                 const lapack_int* ipiv, double* b,
00041                                 lapack_int ldb )
00042 {
00043     lapack_int info = 0;
00044     if( matrix_order == LAPACK_COL_MAJOR ) {
00045         /* Call LAPACK function and adjust info */
00046         LAPACK_dgbtrs( &trans, &n, &kl, &ku, &nrhs, ab, &ldab, ipiv, b, &ldb,
00047                        &info );
00048         if( info < 0 ) {
00049             info = info - 1;
00050         }
00051     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00052         lapack_int ldab_t = MAX(1,2*kl+ku+1);
00053         lapack_int ldb_t = MAX(1,n);
00054         double* ab_t = NULL;
00055         double* b_t = NULL;
00056         /* Check leading dimension(s) */
00057         if( ldab < n ) {
00058             info = -8;
00059             LAPACKE_xerbla( "LAPACKE_dgbtrs_work", info );
00060             return info;
00061         }
00062         if( ldb < nrhs ) {
00063             info = -11;
00064             LAPACKE_xerbla( "LAPACKE_dgbtrs_work", info );
00065             return info;
00066         }
00067         /* Allocate memory for temporary array(s) */
00068         ab_t = (double*)LAPACKE_malloc( sizeof(double) * ldab_t * MAX(1,n) );
00069         if( ab_t == NULL ) {
00070             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00071             goto exit_level_0;
00072         }
00073         b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
00074         if( b_t == NULL ) {
00075             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00076             goto exit_level_1;
00077         }
00078         /* Transpose input matrices */
00079         LAPACKE_dgb_trans( matrix_order, n, n, kl, kl+ku, ab, ldab, ab_t,
00080                            ldab_t );
00081         LAPACKE_dge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00082         /* Call LAPACK function and adjust info */
00083         LAPACK_dgbtrs( &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t, ipiv, b_t,
00084                        &ldb_t, &info );
00085         if( info < 0 ) {
00086             info = info - 1;
00087         }
00088         /* Transpose output matrices */
00089         LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
00090         /* Release memory and exit */
00091         LAPACKE_free( b_t );
00092 exit_level_1:
00093         LAPACKE_free( ab_t );
00094 exit_level_0:
00095         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00096             LAPACKE_xerbla( "LAPACKE_dgbtrs_work", info );
00097         }
00098     } else {
00099         info = -1;
00100         LAPACKE_xerbla( "LAPACKE_dgbtrs_work", info );
00101     }
00102     return info;
00103 }


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autogenerated on Sat Jun 8 2019 18:55:52