lapacke_cposvx.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
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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 cposvx
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_cposvx( int matrix_order, char fact, char uplo, lapack_int n,
00038                            lapack_int nrhs, lapack_complex_float* a,
00039                            lapack_int lda, lapack_complex_float* af,
00040                            lapack_int ldaf, char* equed, float* s,
00041                            lapack_complex_float* b, lapack_int ldb,
00042                            lapack_complex_float* x, lapack_int ldx,
00043                            float* rcond, float* ferr, 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_cposvx", -1 );
00050         return -1;
00051     }
00052 #ifndef LAPACK_DISABLE_NAN_CHECK
00053     /* Optionally check input matrices for NaNs */
00054     if( LAPACKE_cpo_nancheck( matrix_order, uplo, n, a, lda ) ) {
00055         return -6;
00056     }
00057     if( LAPACKE_lsame( fact, 'f' ) ) {
00058         if( LAPACKE_cpo_nancheck( matrix_order, uplo, n, af, ldaf ) ) {
00059             return -8;
00060         }
00061     }
00062     if( LAPACKE_cge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
00063         return -12;
00064     }
00065     if( LAPACKE_lsame( fact, 'f' ) && LAPACKE_lsame( *equed, 'y' ) ) {
00066         if( LAPACKE_s_nancheck( n, s, 1 ) ) {
00067             return -11;
00068         }
00069     }
00070 #endif
00071     /* Allocate memory for working array(s) */
00072     rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
00073     if( rwork == NULL ) {
00074         info = LAPACK_WORK_MEMORY_ERROR;
00075         goto exit_level_0;
00076     }
00077     work = (lapack_complex_float*)
00078         LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
00079     if( work == NULL ) {
00080         info = LAPACK_WORK_MEMORY_ERROR;
00081         goto exit_level_1;
00082     }
00083     /* Call middle-level interface */
00084     info = LAPACKE_cposvx_work( matrix_order, fact, uplo, n, nrhs, a, lda, af,
00085                                 ldaf, equed, s, b, ldb, x, ldx, rcond, ferr,
00086                                 berr, work, rwork );
00087     /* Release memory and exit */
00088     LAPACKE_free( work );
00089 exit_level_1:
00090     LAPACKE_free( rwork );
00091 exit_level_0:
00092     if( info == LAPACK_WORK_MEMORY_ERROR ) {
00093         LAPACKE_xerbla( "LAPACKE_cposvx", info );
00094     }
00095     return info;
00096 }


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