lapacke_csyrfs.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
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00027   THE POSSIBILITY OF SUCH DAMAGE.
00028 ******************************************************************************
00029 * Contents: Native high-level C interface to LAPACK function csyrfs
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_csyrfs( int matrix_order, char uplo, lapack_int n,
00038                            lapack_int nrhs, const lapack_complex_float* a,
00039                            lapack_int lda, const lapack_complex_float* af,
00040                            lapack_int ldaf, const lapack_int* ipiv,
00041                            const lapack_complex_float* b, lapack_int ldb,
00042                            lapack_complex_float* x, lapack_int ldx, float* ferr,
00043                            float* berr )
00044 {
00045     lapack_int info = 0;
00046     float* rwork = NULL;
00047     lapack_complex_float* work = NULL;
00048     if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
00049         LAPACKE_xerbla( "LAPACKE_csyrfs", -1 );
00050         return -1;
00051     }
00052 #ifndef LAPACK_DISABLE_NAN_CHECK
00053     /* Optionally check input matrices for NaNs */
00054     if( LAPACKE_csy_nancheck( matrix_order, uplo, n, a, lda ) ) {
00055         return -5;
00056     }
00057     if( LAPACKE_csy_nancheck( matrix_order, uplo, n, af, ldaf ) ) {
00058         return -7;
00059     }
00060     if( LAPACKE_cge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
00061         return -10;
00062     }
00063     if( LAPACKE_cge_nancheck( matrix_order, n, nrhs, x, ldx ) ) {
00064         return -12;
00065     }
00066 #endif
00067     /* Allocate memory for working array(s) */
00068     rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
00069     if( rwork == NULL ) {
00070         info = LAPACK_WORK_MEMORY_ERROR;
00071         goto exit_level_0;
00072     }
00073     work = (lapack_complex_float*)
00074         LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
00075     if( work == NULL ) {
00076         info = LAPACK_WORK_MEMORY_ERROR;
00077         goto exit_level_1;
00078     }
00079     /* Call middle-level interface */
00080     info = LAPACKE_csyrfs_work( matrix_order, uplo, n, nrhs, a, lda, af, ldaf,
00081                                 ipiv, b, ldb, x, ldx, ferr, berr, work, rwork );
00082     /* Release memory and exit */
00083     LAPACKE_free( work );
00084 exit_level_1:
00085     LAPACKE_free( rwork );
00086 exit_level_0:
00087     if( info == LAPACK_WORK_MEMORY_ERROR ) {
00088         LAPACKE_xerbla( "LAPACKE_csyrfs", info );
00089     }
00090     return info;
00091 }


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