lapacke_dpptrs_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
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00007 
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00009       this list of conditions and the following disclaimer.
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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
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00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function dpptrs
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_dpptrs_work( int matrix_order, char uplo, lapack_int n,
00038                                 lapack_int nrhs, const double* ap, double* b,
00039                                 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_dpptrs( &uplo, &n, &nrhs, ap, b, &ldb, &info );
00045         if( info < 0 ) {
00046             info = info - 1;
00047         }
00048     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00049         lapack_int ldb_t = MAX(1,n);
00050         double* b_t = NULL;
00051         double* ap_t = NULL;
00052         /* Check leading dimension(s) */
00053         if( ldb < nrhs ) {
00054             info = -7;
00055             LAPACKE_xerbla( "LAPACKE_dpptrs_work", info );
00056             return info;
00057         }
00058         /* Allocate memory for temporary array(s) */
00059         b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
00060         if( b_t == NULL ) {
00061             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00062             goto exit_level_0;
00063         }
00064         ap_t = (double*)
00065             LAPACKE_malloc( sizeof(double) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
00066         if( ap_t == NULL ) {
00067             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00068             goto exit_level_1;
00069         }
00070         /* Transpose input matrices */
00071         LAPACKE_dge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00072         LAPACKE_dpp_trans( matrix_order, uplo, n, ap, ap_t );
00073         /* Call LAPACK function and adjust info */
00074         LAPACK_dpptrs( &uplo, &n, &nrhs, ap_t, b_t, &ldb_t, &info );
00075         if( info < 0 ) {
00076             info = info - 1;
00077         }
00078         /* Transpose output matrices */
00079         LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
00080         /* Release memory and exit */
00081         LAPACKE_free( ap_t );
00082 exit_level_1:
00083         LAPACKE_free( b_t );
00084 exit_level_0:
00085         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00086             LAPACKE_xerbla( "LAPACKE_dpptrs_work", info );
00087         }
00088     } else {
00089         info = -1;
00090         LAPACKE_xerbla( "LAPACKE_dpptrs_work", info );
00091     }
00092     return info;
00093 }


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autogenerated on Sat Jun 8 2019 18:55:53