lapacke_dspgvd_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
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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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 middle-level C interface to LAPACK function dspgvd
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_dspgvd_work( int matrix_order, lapack_int itype, char jobz,
00038                                 char uplo, lapack_int n, double* ap, double* bp,
00039                                 double* w, double* z, lapack_int ldz,
00040                                 double* work, lapack_int lwork,
00041                                 lapack_int* iwork, lapack_int liwork )
00042 {
00043     lapack_int info = 0;
00044     if( matrix_order == LAPACK_COL_MAJOR ) {
00045         /* Call LAPACK function and adjust info */
00046         LAPACK_dspgvd( &itype, &jobz, &uplo, &n, ap, bp, w, z, &ldz, work,
00047                        &lwork, iwork, &liwork, &info );
00048         if( info < 0 ) {
00049             info = info - 1;
00050         }
00051     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00052         lapack_int ldz_t = MAX(1,n);
00053         double* z_t = NULL;
00054         double* ap_t = NULL;
00055         double* bp_t = NULL;
00056         /* Check leading dimension(s) */
00057         if( ldz < n ) {
00058             info = -10;
00059             LAPACKE_xerbla( "LAPACKE_dspgvd_work", info );
00060             return info;
00061         }
00062         /* Query optimal working array(s) size if requested */
00063         if( liwork == -1 || lwork == -1 ) {
00064             LAPACK_dspgvd( &itype, &jobz, &uplo, &n, ap, bp, w, z, &ldz_t, work,
00065                            &lwork, iwork, &liwork, &info );
00066             return (info < 0) ? (info - 1) : info;
00067         }
00068         /* Allocate memory for temporary array(s) */
00069         if( LAPACKE_lsame( jobz, 'v' ) ) {
00070             z_t = (double*)LAPACKE_malloc( sizeof(double) * ldz_t * MAX(1,n) );
00071             if( z_t == NULL ) {
00072                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00073                 goto exit_level_0;
00074             }
00075         }
00076         ap_t = (double*)
00077             LAPACKE_malloc( sizeof(double) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
00078         if( ap_t == NULL ) {
00079             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00080             goto exit_level_1;
00081         }
00082         bp_t = (double*)
00083             LAPACKE_malloc( sizeof(double) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
00084         if( bp_t == NULL ) {
00085             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00086             goto exit_level_2;
00087         }
00088         /* Transpose input matrices */
00089         LAPACKE_dsp_trans( matrix_order, uplo, n, ap, ap_t );
00090         LAPACKE_dsp_trans( matrix_order, uplo, n, bp, bp_t );
00091         /* Call LAPACK function and adjust info */
00092         LAPACK_dspgvd( &itype, &jobz, &uplo, &n, ap_t, bp_t, w, z_t, &ldz_t,
00093                        work, &lwork, iwork, &liwork, &info );
00094         if( info < 0 ) {
00095             info = info - 1;
00096         }
00097         /* Transpose output matrices */
00098         if( LAPACKE_lsame( jobz, 'v' ) ) {
00099             LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
00100         }
00101         LAPACKE_dsp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
00102         LAPACKE_dsp_trans( LAPACK_COL_MAJOR, uplo, n, bp_t, bp );
00103         /* Release memory and exit */
00104         LAPACKE_free( bp_t );
00105 exit_level_2:
00106         LAPACKE_free( ap_t );
00107 exit_level_1:
00108         if( LAPACKE_lsame( jobz, 'v' ) ) {
00109             LAPACKE_free( z_t );
00110         }
00111 exit_level_0:
00112         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00113             LAPACKE_xerbla( "LAPACKE_dspgvd_work", info );
00114         }
00115     } else {
00116         info = -1;
00117         LAPACKE_xerbla( "LAPACKE_dspgvd_work", info );
00118     }
00119     return info;
00120 }


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autogenerated on Sat Jun 8 2019 18:55:53