lapacke_sgees.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
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00023   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 high-level C interface to LAPACK function sgees
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_sgees( int matrix_order, char jobvs, char sort,
00038                           LAPACK_S_SELECT2 select, lapack_int n, float* a,
00039                           lapack_int lda, lapack_int* sdim, float* wr,
00040                           float* wi, float* vs, lapack_int ldvs )
00041 {
00042     lapack_int info = 0;
00043     lapack_int lwork = -1;
00044     lapack_logical* bwork = NULL;
00045     float* work = NULL;
00046     float work_query;
00047     if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
00048         LAPACKE_xerbla( "LAPACKE_sgees", -1 );
00049         return -1;
00050     }
00051 #ifndef LAPACK_DISABLE_NAN_CHECK
00052     /* Optionally check input matrices for NaNs */
00053     if( LAPACKE_sge_nancheck( matrix_order, n, n, a, lda ) ) {
00054         return -6;
00055     }
00056 #endif
00057     /* Allocate memory for working array(s) */
00058     if( LAPACKE_lsame( sort, 's' ) ) {
00059         bwork = (lapack_logical*)
00060             LAPACKE_malloc( sizeof(lapack_logical) * MAX(1,n) );
00061         if( bwork == NULL ) {
00062             info = LAPACK_WORK_MEMORY_ERROR;
00063             goto exit_level_0;
00064         }
00065     }
00066     /* Query optimal working array(s) size */
00067     info = LAPACKE_sgees_work( matrix_order, jobvs, sort, select, n, a, lda,
00068                                sdim, wr, wi, vs, ldvs, &work_query, lwork,
00069                                bwork );
00070     if( info != 0 ) {
00071         goto exit_level_1;
00072     }
00073     lwork = (lapack_int)work_query;
00074     /* Allocate memory for work arrays */
00075     work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
00076     if( work == NULL ) {
00077         info = LAPACK_WORK_MEMORY_ERROR;
00078         goto exit_level_1;
00079     }
00080     /* Call middle-level interface */
00081     info = LAPACKE_sgees_work( matrix_order, jobvs, sort, select, n, a, lda,
00082                                sdim, wr, wi, vs, ldvs, work, lwork, bwork );
00083     /* Release memory and exit */
00084     LAPACKE_free( work );
00085 exit_level_1:
00086     if( LAPACKE_lsame( sort, 's' ) ) {
00087         LAPACKE_free( bwork );
00088     }
00089 exit_level_0:
00090     if( info == LAPACK_WORK_MEMORY_ERROR ) {
00091         LAPACKE_xerbla( "LAPACKE_sgees", info );
00092     }
00093     return info;
00094 }


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