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+/*****************************************************************************
+ Copyright (c) 2014, Intel Corp.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ THE POSSIBILITY OF SUCH DAMAGE.
+*****************************************************************************
+* Contents: Native middle-level C interface to LAPACK function dsygst
+* Author: Intel Corporation
+* Generated November, 2011
+*****************************************************************************/
+
+#include "lapacke_utils.h"
+
+lapack_int LAPACKE_dsygst_work( int matrix_layout, lapack_int itype, char uplo,
+ lapack_int n, double* a, lapack_int lda,
+ const double* b, lapack_int ldb )
+{
+ lapack_int info = 0;
+ if( matrix_layout == LAPACK_COL_MAJOR ) {
+ /* Call LAPACK function and adjust info */
+ LAPACK_dsygst( &itype, &uplo, &n, a, &lda, b, &ldb, &info );
+ if( info < 0 ) {
+ info = info - 1;
+ }
+ } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
+ lapack_int lda_t = MAX(1,n);
+ lapack_int ldb_t = MAX(1,n);
+ double* a_t = NULL;
+ double* b_t = NULL;
+ /* Check leading dimension(s) */
+ if( lda < n ) {
+ info = -6;
+ LAPACKE_xerbla( "LAPACKE_dsygst_work", info );
+ return info;
+ }
+ if( ldb < n ) {
+ info = -8;
+ LAPACKE_xerbla( "LAPACKE_dsygst_work", info );
+ return info;
+ }
+ /* Allocate memory for temporary array(s) */
+ a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
+ if( a_t == NULL ) {
+ info = LAPACK_TRANSPOSE_MEMORY_ERROR;
+ goto exit_level_0;
+ }
+ b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,n) );
+ if( b_t == NULL ) {
+ info = LAPACK_TRANSPOSE_MEMORY_ERROR;
+ goto exit_level_1;
+ }
+ /* Transpose input matrices */
+ LAPACKE_dsy_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
+ LAPACKE_dge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
+ /* Call LAPACK function and adjust info */
+ LAPACK_dsygst( &itype, &uplo, &n, a_t, &lda_t, b_t, &ldb_t, &info );
+ if( info < 0 ) {
+ info = info - 1;
+ }
+ /* Transpose output matrices */
+ LAPACKE_dsy_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
+ /* Release memory and exit */
+ LAPACKE_free( b_t );
+exit_level_1:
+ LAPACKE_free( a_t );
+exit_level_0:
+ if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
+ LAPACKE_xerbla( "LAPACKE_dsygst_work", info );
+ }
+ } else {
+ info = -1;
+ LAPACKE_xerbla( "LAPACKE_dsygst_work", info );
+ }
+ return info;
+}