lapacke_dsygst_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
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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
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00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function dsygst
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_dsygst_work( int matrix_order, lapack_int itype, char uplo,
00038                                 lapack_int n, double* a, lapack_int lda,
00039                                 const double* b, lapack_int ldb )
00040 {
00041     lapack_int info = 0;
00042     if( matrix_order == LAPACK_COL_MAJOR ) {
00043         /* Call LAPACK function and adjust info */
00044         LAPACK_dsygst( &itype, &uplo, &n, a, &lda, b, &ldb, &info );
00045         if( info < 0 ) {
00046             info = info - 1;
00047         }
00048     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00049         lapack_int lda_t = MAX(1,n);
00050         lapack_int ldb_t = MAX(1,n);
00051         double* a_t = NULL;
00052         double* b_t = NULL;
00053         /* Check leading dimension(s) */
00054         if( lda < n ) {
00055             info = -6;
00056             LAPACKE_xerbla( "LAPACKE_dsygst_work", info );
00057             return info;
00058         }
00059         if( ldb < n ) {
00060             info = -8;
00061             LAPACKE_xerbla( "LAPACKE_dsygst_work", info );
00062             return info;
00063         }
00064         /* Allocate memory for temporary array(s) */
00065         a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
00066         if( a_t == NULL ) {
00067             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00068             goto exit_level_0;
00069         }
00070         b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,n) );
00071         if( b_t == NULL ) {
00072             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00073             goto exit_level_1;
00074         }
00075         /* Transpose input matrices */
00076         LAPACKE_dsy_trans( matrix_order, uplo, n, a, lda, a_t, lda_t );
00077         LAPACKE_dge_trans( matrix_order, n, n, b, ldb, b_t, ldb_t );
00078         /* Call LAPACK function and adjust info */
00079         LAPACK_dsygst( &itype, &uplo, &n, a_t, &lda_t, b_t, &ldb_t, &info );
00080         if( info < 0 ) {
00081             info = info - 1;
00082         }
00083         /* Transpose output matrices */
00084         LAPACKE_dsy_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
00085         /* Release memory and exit */
00086         LAPACKE_free( b_t );
00087 exit_level_1:
00088         LAPACKE_free( a_t );
00089 exit_level_0:
00090         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00091             LAPACKE_xerbla( "LAPACKE_dsygst_work", info );
00092         }
00093     } else {
00094         info = -1;
00095         LAPACKE_xerbla( "LAPACKE_dsygst_work", info );
00096     }
00097     return info;
00098 }


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autogenerated on Sat Jun 8 2019 18:55:53