lapacke_ctrsyl_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
00022   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 middle-level C interface to LAPACK function ctrsyl
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_ctrsyl_work( int matrix_order, char trana, char tranb,
00038                                 lapack_int isgn, lapack_int m, lapack_int n,
00039                                 const lapack_complex_float* a, lapack_int lda,
00040                                 const lapack_complex_float* b, lapack_int ldb,
00041                                 lapack_complex_float* c, lapack_int ldc,
00042                                 float* scale )
00043 {
00044     lapack_int info = 0;
00045     if( matrix_order == LAPACK_COL_MAJOR ) {
00046         /* Call LAPACK function and adjust info */
00047         LAPACK_ctrsyl( &trana, &tranb, &isgn, &m, &n, a, &lda, b, &ldb, c, &ldc,
00048                        scale, &info );
00049         if( info < 0 ) {
00050             info = info - 1;
00051         }
00052     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00053         lapack_int lda_t = MAX(1,m);
00054         lapack_int ldb_t = MAX(1,n);
00055         lapack_int ldc_t = MAX(1,m);
00056         lapack_complex_float* a_t = NULL;
00057         lapack_complex_float* b_t = NULL;
00058         lapack_complex_float* c_t = NULL;
00059         /* Check leading dimension(s) */
00060         if( lda < m ) {
00061             info = -8;
00062             LAPACKE_xerbla( "LAPACKE_ctrsyl_work", info );
00063             return info;
00064         }
00065         if( ldb < n ) {
00066             info = -10;
00067             LAPACKE_xerbla( "LAPACKE_ctrsyl_work", info );
00068             return info;
00069         }
00070         if( ldc < n ) {
00071             info = -12;
00072             LAPACKE_xerbla( "LAPACKE_ctrsyl_work", info );
00073             return info;
00074         }
00075         /* Allocate memory for temporary array(s) */
00076         a_t = (lapack_complex_float*)
00077             LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,m) );
00078         if( a_t == NULL ) {
00079             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00080             goto exit_level_0;
00081         }
00082         b_t = (lapack_complex_float*)
00083             LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
00084         if( b_t == NULL ) {
00085             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00086             goto exit_level_1;
00087         }
00088         c_t = (lapack_complex_float*)
00089             LAPACKE_malloc( sizeof(lapack_complex_float) * ldc_t * MAX(1,n) );
00090         if( c_t == NULL ) {
00091             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00092             goto exit_level_2;
00093         }
00094         /* Transpose input matrices */
00095         LAPACKE_cge_trans( matrix_order, m, m, a, lda, a_t, lda_t );
00096         LAPACKE_cge_trans( matrix_order, n, n, b, ldb, b_t, ldb_t );
00097         LAPACKE_cge_trans( matrix_order, m, n, c, ldc, c_t, ldc_t );
00098         /* Call LAPACK function and adjust info */
00099         LAPACK_ctrsyl( &trana, &tranb, &isgn, &m, &n, a_t, &lda_t, b_t, &ldb_t,
00100                        c_t, &ldc_t, scale, &info );
00101         if( info < 0 ) {
00102             info = info - 1;
00103         }
00104         /* Transpose output matrices */
00105         LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
00106         /* Release memory and exit */
00107         LAPACKE_free( c_t );
00108 exit_level_2:
00109         LAPACKE_free( b_t );
00110 exit_level_1:
00111         LAPACKE_free( a_t );
00112 exit_level_0:
00113         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00114             LAPACKE_xerbla( "LAPACKE_ctrsyl_work", info );
00115         }
00116     } else {
00117         info = -1;
00118         LAPACKE_xerbla( "LAPACKE_ctrsyl_work", info );
00119     }
00120     return info;
00121 }


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