lapacke_zgbrfs_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
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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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00026   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function zgbrfs
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_zgbrfs_work( int matrix_order, char trans, lapack_int n,
00038                                 lapack_int kl, lapack_int ku, lapack_int nrhs,
00039                                 const lapack_complex_double* ab,
00040                                 lapack_int ldab,
00041                                 const lapack_complex_double* afb,
00042                                 lapack_int ldafb, const lapack_int* ipiv,
00043                                 const lapack_complex_double* b, lapack_int ldb,
00044                                 lapack_complex_double* x, lapack_int ldx,
00045                                 double* ferr, double* berr,
00046                                 lapack_complex_double* work, double* rwork )
00047 {
00048     lapack_int info = 0;
00049     if( matrix_order == LAPACK_COL_MAJOR ) {
00050         /* Call LAPACK function and adjust info */
00051         LAPACK_zgbrfs( &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb, &ldafb,
00052                        ipiv, b, &ldb, x, &ldx, ferr, berr, work, rwork, &info );
00053         if( info < 0 ) {
00054             info = info - 1;
00055         }
00056     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00057         lapack_int ldab_t = MAX(1,kl+ku+1);
00058         lapack_int ldafb_t = MAX(1,2*kl+ku+1);
00059         lapack_int ldb_t = MAX(1,n);
00060         lapack_int ldx_t = MAX(1,n);
00061         lapack_complex_double* ab_t = NULL;
00062         lapack_complex_double* afb_t = NULL;
00063         lapack_complex_double* b_t = NULL;
00064         lapack_complex_double* x_t = NULL;
00065         /* Check leading dimension(s) */
00066         if( ldab < n ) {
00067             info = -8;
00068             LAPACKE_xerbla( "LAPACKE_zgbrfs_work", info );
00069             return info;
00070         }
00071         if( ldafb < n ) {
00072             info = -10;
00073             LAPACKE_xerbla( "LAPACKE_zgbrfs_work", info );
00074             return info;
00075         }
00076         if( ldb < nrhs ) {
00077             info = -13;
00078             LAPACKE_xerbla( "LAPACKE_zgbrfs_work", info );
00079             return info;
00080         }
00081         if( ldx < nrhs ) {
00082             info = -15;
00083             LAPACKE_xerbla( "LAPACKE_zgbrfs_work", info );
00084             return info;
00085         }
00086         /* Allocate memory for temporary array(s) */
00087         ab_t = (lapack_complex_double*)
00088             LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
00089         if( ab_t == NULL ) {
00090             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00091             goto exit_level_0;
00092         }
00093         afb_t = (lapack_complex_double*)
00094             LAPACKE_malloc( sizeof(lapack_complex_double) *
00095                             ldafb_t * MAX(1,n) );
00096         if( afb_t == NULL ) {
00097             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00098             goto exit_level_1;
00099         }
00100         b_t = (lapack_complex_double*)
00101             LAPACKE_malloc( sizeof(lapack_complex_double) *
00102                             ldb_t * MAX(1,nrhs) );
00103         if( b_t == NULL ) {
00104             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00105             goto exit_level_2;
00106         }
00107         x_t = (lapack_complex_double*)
00108             LAPACKE_malloc( sizeof(lapack_complex_double) *
00109                             ldx_t * MAX(1,nrhs) );
00110         if( x_t == NULL ) {
00111             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00112             goto exit_level_3;
00113         }
00114         /* Transpose input matrices */
00115         LAPACKE_zgb_trans( matrix_order, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
00116         LAPACKE_zgb_trans( matrix_order, n, n, kl, kl+ku, afb, ldafb, afb_t,
00117                            ldafb_t );
00118         LAPACKE_zge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00119         LAPACKE_zge_trans( matrix_order, n, nrhs, x, ldx, x_t, ldx_t );
00120         /* Call LAPACK function and adjust info */
00121         LAPACK_zgbrfs( &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t, afb_t,
00122                        &ldafb_t, ipiv, b_t, &ldb_t, x_t, &ldx_t, ferr, berr,
00123                        work, rwork, &info );
00124         if( info < 0 ) {
00125             info = info - 1;
00126         }
00127         /* Transpose output matrices */
00128         LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
00129         /* Release memory and exit */
00130         LAPACKE_free( x_t );
00131 exit_level_3:
00132         LAPACKE_free( b_t );
00133 exit_level_2:
00134         LAPACKE_free( afb_t );
00135 exit_level_1:
00136         LAPACKE_free( ab_t );
00137 exit_level_0:
00138         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00139             LAPACKE_xerbla( "LAPACKE_zgbrfs_work", info );
00140         }
00141     } else {
00142         info = -1;
00143         LAPACKE_xerbla( "LAPACKE_zgbrfs_work", info );
00144     }
00145     return info;
00146 }


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autogenerated on Sat Jun 8 2019 18:55:54