lapacke_cgerfs_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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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
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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 cgerfs
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_cgerfs_work( int matrix_order, char trans, lapack_int n,
00038                                 lapack_int nrhs, const lapack_complex_float* a,
00039                                 lapack_int lda, const lapack_complex_float* af,
00040                                 lapack_int ldaf, const lapack_int* ipiv,
00041                                 const lapack_complex_float* b, lapack_int ldb,
00042                                 lapack_complex_float* x, lapack_int ldx,
00043                                 float* ferr, float* berr,
00044                                 lapack_complex_float* work, float* rwork )
00045 {
00046     lapack_int info = 0;
00047     if( matrix_order == LAPACK_COL_MAJOR ) {
00048         /* Call LAPACK function and adjust info */
00049         LAPACK_cgerfs( &trans, &n, &nrhs, a, &lda, af, &ldaf, ipiv, b, &ldb, x,
00050                        &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 lda_t = MAX(1,n);
00056         lapack_int ldaf_t = MAX(1,n);
00057         lapack_int ldb_t = MAX(1,n);
00058         lapack_int ldx_t = MAX(1,n);
00059         lapack_complex_float* a_t = NULL;
00060         lapack_complex_float* af_t = NULL;
00061         lapack_complex_float* b_t = NULL;
00062         lapack_complex_float* x_t = NULL;
00063         /* Check leading dimension(s) */
00064         if( lda < n ) {
00065             info = -6;
00066             LAPACKE_xerbla( "LAPACKE_cgerfs_work", info );
00067             return info;
00068         }
00069         if( ldaf < n ) {
00070             info = -8;
00071             LAPACKE_xerbla( "LAPACKE_cgerfs_work", info );
00072             return info;
00073         }
00074         if( ldb < nrhs ) {
00075             info = -11;
00076             LAPACKE_xerbla( "LAPACKE_cgerfs_work", info );
00077             return info;
00078         }
00079         if( ldx < nrhs ) {
00080             info = -13;
00081             LAPACKE_xerbla( "LAPACKE_cgerfs_work", info );
00082             return info;
00083         }
00084         /* Allocate memory for temporary array(s) */
00085         a_t = (lapack_complex_float*)
00086             LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
00087         if( a_t == NULL ) {
00088             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00089             goto exit_level_0;
00090         }
00091         af_t = (lapack_complex_float*)
00092             LAPACKE_malloc( sizeof(lapack_complex_float) * ldaf_t * MAX(1,n) );
00093         if( af_t == NULL ) {
00094             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00095             goto exit_level_1;
00096         }
00097         b_t = (lapack_complex_float*)
00098             LAPACKE_malloc( sizeof(lapack_complex_float) *
00099                             ldb_t * MAX(1,nrhs) );
00100         if( b_t == NULL ) {
00101             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00102             goto exit_level_2;
00103         }
00104         x_t = (lapack_complex_float*)
00105             LAPACKE_malloc( sizeof(lapack_complex_float) *
00106                             ldx_t * MAX(1,nrhs) );
00107         if( x_t == NULL ) {
00108             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00109             goto exit_level_3;
00110         }
00111         /* Transpose input matrices */
00112         LAPACKE_cge_trans( matrix_order, n, n, a, lda, a_t, lda_t );
00113         LAPACKE_cge_trans( matrix_order, n, n, af, ldaf, af_t, ldaf_t );
00114         LAPACKE_cge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00115         LAPACKE_cge_trans( matrix_order, n, nrhs, x, ldx, x_t, ldx_t );
00116         /* Call LAPACK function and adjust info */
00117         LAPACK_cgerfs( &trans, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t, ipiv, b_t,
00118                        &ldb_t, x_t, &ldx_t, ferr, berr, work, rwork, &info );
00119         if( info < 0 ) {
00120             info = info - 1;
00121         }
00122         /* Transpose output matrices */
00123         LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
00124         /* Release memory and exit */
00125         LAPACKE_free( x_t );
00126 exit_level_3:
00127         LAPACKE_free( b_t );
00128 exit_level_2:
00129         LAPACKE_free( af_t );
00130 exit_level_1:
00131         LAPACKE_free( a_t );
00132 exit_level_0:
00133         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00134             LAPACKE_xerbla( "LAPACKE_cgerfs_work", info );
00135         }
00136     } else {
00137         info = -1;
00138         LAPACKE_xerbla( "LAPACKE_cgerfs_work", info );
00139     }
00140     return info;
00141 }


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autogenerated on Sat Jun 8 2019 18:55:51