lapacke_ctgsyl.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 high-level C interface to LAPACK function ctgsyl
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_ctgsyl( int matrix_order, char trans, lapack_int ijob,
00038                            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                            const lapack_complex_float* d, lapack_int ldd,
00043                            const lapack_complex_float* e, lapack_int lde,
00044                            lapack_complex_float* f, lapack_int ldf,
00045                            float* scale, float* dif )
00046 {
00047     lapack_int info = 0;
00048     lapack_int lwork = -1;
00049     lapack_int* iwork = NULL;
00050     lapack_complex_float* work = NULL;
00051     lapack_complex_float work_query;
00052     if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
00053         LAPACKE_xerbla( "LAPACKE_ctgsyl", -1 );
00054         return -1;
00055     }
00056 #ifndef LAPACK_DISABLE_NAN_CHECK
00057     /* Optionally check input matrices for NaNs */
00058     if( LAPACKE_cge_nancheck( matrix_order, m, m, a, lda ) ) {
00059         return -6;
00060     }
00061     if( LAPACKE_cge_nancheck( matrix_order, n, n, b, ldb ) ) {
00062         return -8;
00063     }
00064     if( LAPACKE_cge_nancheck( matrix_order, m, n, c, ldc ) ) {
00065         return -10;
00066     }
00067     if( LAPACKE_cge_nancheck( matrix_order, m, m, d, ldd ) ) {
00068         return -12;
00069     }
00070     if( LAPACKE_cge_nancheck( matrix_order, n, n, e, lde ) ) {
00071         return -14;
00072     }
00073     if( LAPACKE_cge_nancheck( matrix_order, m, n, f, ldf ) ) {
00074         return -16;
00075     }
00076 #endif
00077     /* Allocate memory for working array(s) */
00078     iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,m+n+2) );
00079     if( iwork == NULL ) {
00080         info = LAPACK_WORK_MEMORY_ERROR;
00081         goto exit_level_0;
00082     }
00083     /* Query optimal working array(s) size */
00084     info = LAPACKE_ctgsyl_work( matrix_order, trans, ijob, m, n, a, lda, b, ldb,
00085                                 c, ldc, d, ldd, e, lde, f, ldf, scale, dif,
00086                                 &work_query, lwork, iwork );
00087     if( info != 0 ) {
00088         goto exit_level_1;
00089     }
00090     lwork = LAPACK_C2INT( work_query );
00091     /* Allocate memory for work arrays */
00092     work = (lapack_complex_float*)
00093         LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
00094     if( work == NULL ) {
00095         info = LAPACK_WORK_MEMORY_ERROR;
00096         goto exit_level_1;
00097     }
00098     /* Call middle-level interface */
00099     info = LAPACKE_ctgsyl_work( matrix_order, trans, ijob, m, n, a, lda, b, ldb,
00100                                 c, ldc, d, ldd, e, lde, f, ldf, scale, dif,
00101                                 work, lwork, iwork );
00102     /* Release memory and exit */
00103     LAPACKE_free( work );
00104 exit_level_1:
00105     LAPACKE_free( iwork );
00106 exit_level_0:
00107     if( info == LAPACK_WORK_MEMORY_ERROR ) {
00108         LAPACKE_xerbla( "LAPACKE_ctgsyl", info );
00109     }
00110     return info;
00111 }


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