lapacke_dggev.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
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00023   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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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 high-level C interface to LAPACK function dggev
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_dggev( int matrix_order, char jobvl, char jobvr,
00038                           lapack_int n, double* a, lapack_int lda, double* b,
00039                           lapack_int ldb, double* alphar, double* alphai,
00040                           double* beta, double* vl, lapack_int ldvl, double* vr,
00041                           lapack_int ldvr )
00042 {
00043     lapack_int info = 0;
00044     lapack_int lwork = -1;
00045     double* work = NULL;
00046     double work_query;
00047     if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
00048         LAPACKE_xerbla( "LAPACKE_dggev", -1 );
00049         return -1;
00050     }
00051 #ifndef LAPACK_DISABLE_NAN_CHECK
00052     /* Optionally check input matrices for NaNs */
00053     if( LAPACKE_dge_nancheck( matrix_order, n, n, a, lda ) ) {
00054         return -5;
00055     }
00056     if( LAPACKE_dge_nancheck( matrix_order, n, n, b, ldb ) ) {
00057         return -7;
00058     }
00059 #endif
00060     /* Query optimal working array(s) size */
00061     info = LAPACKE_dggev_work( matrix_order, jobvl, jobvr, n, a, lda, b, ldb,
00062                                alphar, alphai, beta, vl, ldvl, vr, ldvr,
00063                                &work_query, lwork );
00064     if( info != 0 ) {
00065         goto exit_level_0;
00066     }
00067     lwork = (lapack_int)work_query;
00068     /* Allocate memory for work arrays */
00069     work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
00070     if( work == NULL ) {
00071         info = LAPACK_WORK_MEMORY_ERROR;
00072         goto exit_level_0;
00073     }
00074     /* Call middle-level interface */
00075     info = LAPACKE_dggev_work( matrix_order, jobvl, jobvr, n, a, lda, b, ldb,
00076                                alphar, alphai, beta, vl, ldvl, vr, ldvr, work,
00077                                lwork );
00078     /* Release memory and exit */
00079     LAPACKE_free( work );
00080 exit_level_0:
00081     if( info == LAPACK_WORK_MEMORY_ERROR ) {
00082         LAPACKE_xerbla( "LAPACKE_dggev", info );
00083     }
00084     return info;
00085 }


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autogenerated on Sat Jun 8 2019 18:55:52