lapacke_zgbtrs_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
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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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00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function zgbtrs
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_zgbtrs_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, const lapack_int* ipiv,
00041                                 lapack_complex_double* b, 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_zgbtrs( &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         lapack_complex_double* ab_t = NULL;
00055         lapack_complex_double* b_t = NULL;
00056         /* Check leading dimension(s) */
00057         if( ldab < n ) {
00058             info = -8;
00059             LAPACKE_xerbla( "LAPACKE_zgbtrs_work", info );
00060             return info;
00061         }
00062         if( ldb < nrhs ) {
00063             info = -11;
00064             LAPACKE_xerbla( "LAPACKE_zgbtrs_work", info );
00065             return info;
00066         }
00067         /* Allocate memory for temporary array(s) */
00068         ab_t = (lapack_complex_double*)
00069             LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
00070         if( ab_t == NULL ) {
00071             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00072             goto exit_level_0;
00073         }
00074         b_t = (lapack_complex_double*)
00075             LAPACKE_malloc( sizeof(lapack_complex_double) *
00076                             ldb_t * MAX(1,nrhs) );
00077         if( b_t == NULL ) {
00078             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00079             goto exit_level_1;
00080         }
00081         /* Transpose input matrices */
00082         LAPACKE_zgb_trans( matrix_order, n, n, kl, kl+ku, ab, ldab, ab_t,
00083                            ldab_t );
00084         LAPACKE_zge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00085         /* Call LAPACK function and adjust info */
00086         LAPACK_zgbtrs( &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t, ipiv, b_t,
00087                        &ldb_t, &info );
00088         if( info < 0 ) {
00089             info = info - 1;
00090         }
00091         /* Transpose output matrices */
00092         LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
00093         /* Release memory and exit */
00094         LAPACKE_free( b_t );
00095 exit_level_1:
00096         LAPACKE_free( ab_t );
00097 exit_level_0:
00098         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00099             LAPACKE_xerbla( "LAPACKE_zgbtrs_work", info );
00100         }
00101     } else {
00102         info = -1;
00103         LAPACKE_xerbla( "LAPACKE_zgbtrs_work", info );
00104     }
00105     return info;
00106 }


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autogenerated on Sat Jun 8 2019 18:55:55