lapacke_ztbrfs_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 ztbrfs
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_ztbrfs_work( int matrix_order, char uplo, char trans,
00038                                 char diag, lapack_int n, lapack_int kd,
00039                                 lapack_int nrhs,
00040                                 const lapack_complex_double* ab,
00041                                 lapack_int ldab, const lapack_complex_double* b,
00042                                 lapack_int ldb, const lapack_complex_double* x,
00043                                 lapack_int ldx, double* ferr, double* berr,
00044                                 lapack_complex_double* work, double* rwork )
00045 {
00046     lapack_int info = 0;
00047     if( matrix_order == LAPACK_COL_MAJOR ) {
00048         /* Call LAPACK function and adjust info */
00049         LAPACK_ztbrfs( &uplo, &trans, &diag, &n, &kd, &nrhs, ab, &ldab, b, &ldb,
00050                        x, &ldx, ferr, berr, work, rwork, &info );
00051         if( info < 0 ) {
00052             info = info - 1;
00053         }
00054     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00055         lapack_int ldab_t = MAX(1,kd+1);
00056         lapack_int ldb_t = MAX(1,n);
00057         lapack_int ldx_t = MAX(1,n);
00058         lapack_complex_double* ab_t = NULL;
00059         lapack_complex_double* b_t = NULL;
00060         lapack_complex_double* x_t = NULL;
00061         /* Check leading dimension(s) */
00062         if( ldab < n ) {
00063             info = -9;
00064             LAPACKE_xerbla( "LAPACKE_ztbrfs_work", info );
00065             return info;
00066         }
00067         if( ldb < nrhs ) {
00068             info = -11;
00069             LAPACKE_xerbla( "LAPACKE_ztbrfs_work", info );
00070             return info;
00071         }
00072         if( ldx < nrhs ) {
00073             info = -13;
00074             LAPACKE_xerbla( "LAPACKE_ztbrfs_work", info );
00075             return info;
00076         }
00077         /* Allocate memory for temporary array(s) */
00078         ab_t = (lapack_complex_double*)
00079             LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
00080         if( ab_t == NULL ) {
00081             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00082             goto exit_level_0;
00083         }
00084         b_t = (lapack_complex_double*)
00085             LAPACKE_malloc( sizeof(lapack_complex_double) *
00086                             ldb_t * MAX(1,nrhs) );
00087         if( b_t == NULL ) {
00088             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00089             goto exit_level_1;
00090         }
00091         x_t = (lapack_complex_double*)
00092             LAPACKE_malloc( sizeof(lapack_complex_double) *
00093                             ldx_t * MAX(1,nrhs) );
00094         if( x_t == NULL ) {
00095             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00096             goto exit_level_2;
00097         }
00098         /* Transpose input matrices */
00099         LAPACKE_ztb_trans( matrix_order, uplo, diag, n, kd, ab, ldab, ab_t,
00100                            ldab_t );
00101         LAPACKE_zge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00102         LAPACKE_zge_trans( matrix_order, n, nrhs, x, ldx, x_t, ldx_t );
00103         /* Call LAPACK function and adjust info */
00104         LAPACK_ztbrfs( &uplo, &trans, &diag, &n, &kd, &nrhs, ab_t, &ldab_t, b_t,
00105                        &ldb_t, x_t, &ldx_t, ferr, berr, work, rwork, &info );
00106         if( info < 0 ) {
00107             info = info - 1;
00108         }
00109         /* Release memory and exit */
00110         LAPACKE_free( x_t );
00111 exit_level_2:
00112         LAPACKE_free( b_t );
00113 exit_level_1:
00114         LAPACKE_free( ab_t );
00115 exit_level_0:
00116         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00117             LAPACKE_xerbla( "LAPACKE_ztbrfs_work", info );
00118         }
00119     } else {
00120         info = -1;
00121         LAPACKE_xerbla( "LAPACKE_ztbrfs_work", info );
00122     }
00123     return info;
00124 }


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autogenerated on Sat Jun 8 2019 18:55:56