lapacke_dpprfs_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
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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 dpprfs
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_dpprfs_work( int matrix_order, char uplo, lapack_int n,
00038                                 lapack_int nrhs, const double* ap,
00039                                 const double* afp, const double* b,
00040                                 lapack_int ldb, double* x, lapack_int ldx,
00041                                 double* ferr, double* berr, double* work,
00042                                 lapack_int* iwork )
00043 {
00044     lapack_int info = 0;
00045     if( matrix_order == LAPACK_COL_MAJOR ) {
00046         /* Call LAPACK function and adjust info */
00047         LAPACK_dpprfs( &uplo, &n, &nrhs, ap, afp, b, &ldb, x, &ldx, ferr, berr,
00048                        work, iwork, &info );
00049         if( info < 0 ) {
00050             info = info - 1;
00051         }
00052     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00053         lapack_int ldb_t = MAX(1,n);
00054         lapack_int ldx_t = MAX(1,n);
00055         double* b_t = NULL;
00056         double* x_t = NULL;
00057         double* ap_t = NULL;
00058         double* afp_t = NULL;
00059         /* Check leading dimension(s) */
00060         if( ldb < nrhs ) {
00061             info = -8;
00062             LAPACKE_xerbla( "LAPACKE_dpprfs_work", info );
00063             return info;
00064         }
00065         if( ldx < nrhs ) {
00066             info = -10;
00067             LAPACKE_xerbla( "LAPACKE_dpprfs_work", info );
00068             return info;
00069         }
00070         /* Allocate memory for temporary array(s) */
00071         b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
00072         if( b_t == NULL ) {
00073             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00074             goto exit_level_0;
00075         }
00076         x_t = (double*)LAPACKE_malloc( sizeof(double) * ldx_t * MAX(1,nrhs) );
00077         if( x_t == NULL ) {
00078             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00079             goto exit_level_1;
00080         }
00081         ap_t = (double*)
00082             LAPACKE_malloc( sizeof(double) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
00083         if( ap_t == NULL ) {
00084             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00085             goto exit_level_2;
00086         }
00087         afp_t = (double*)
00088             LAPACKE_malloc( sizeof(double) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
00089         if( afp_t == NULL ) {
00090             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00091             goto exit_level_3;
00092         }
00093         /* Transpose input matrices */
00094         LAPACKE_dge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00095         LAPACKE_dge_trans( matrix_order, n, nrhs, x, ldx, x_t, ldx_t );
00096         LAPACKE_dpp_trans( matrix_order, uplo, n, ap, ap_t );
00097         LAPACKE_dpp_trans( matrix_order, uplo, n, afp, afp_t );
00098         /* Call LAPACK function and adjust info */
00099         LAPACK_dpprfs( &uplo, &n, &nrhs, ap_t, afp_t, b_t, &ldb_t, x_t, &ldx_t,
00100                        ferr, berr, work, iwork, &info );
00101         if( info < 0 ) {
00102             info = info - 1;
00103         }
00104         /* Transpose output matrices */
00105         LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
00106         /* Release memory and exit */
00107         LAPACKE_free( afp_t );
00108 exit_level_3:
00109         LAPACKE_free( ap_t );
00110 exit_level_2:
00111         LAPACKE_free( x_t );
00112 exit_level_1:
00113         LAPACKE_free( b_t );
00114 exit_level_0:
00115         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00116             LAPACKE_xerbla( "LAPACKE_dpprfs_work", info );
00117         }
00118     } else {
00119         info = -1;
00120         LAPACKE_xerbla( "LAPACKE_dpprfs_work", info );
00121     }
00122     return info;
00123 }


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autogenerated on Sat Jun 8 2019 18:55:53