lapacke_zpstrf.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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00023   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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00026   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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00028 ******************************************************************************
00029 * Contents: Native high-level C interface to LAPACK function zpstrf
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_zpstrf( int matrix_order, char uplo, lapack_int n,
00038                            lapack_complex_double* a, lapack_int lda,
00039                            lapack_int* piv, lapack_int* rank, double tol )
00040 {
00041     lapack_int info = 0;
00042     double* work = NULL;
00043     if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
00044         LAPACKE_xerbla( "LAPACKE_zpstrf", -1 );
00045         return -1;
00046     }
00047 #ifndef LAPACK_DISABLE_NAN_CHECK
00048     /* Optionally check input matrices for NaNs */
00049     if( LAPACKE_zpo_nancheck( matrix_order, uplo, n, a, lda ) ) {
00050         return -4;
00051     }
00052     if( LAPACKE_d_nancheck( 1, &tol, 1 ) ) {
00053         return -8;
00054     }
00055 #endif
00056     /* Allocate memory for working array(s) */
00057     work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*n) );
00058     if( work == NULL ) {
00059         info = LAPACK_WORK_MEMORY_ERROR;
00060         goto exit_level_0;
00061     }
00062     /* Call middle-level interface */
00063     info = LAPACKE_zpstrf_work( matrix_order, uplo, n, a, lda, piv, rank, tol,
00064                                 work );
00065     /* Release memory and exit */
00066     LAPACKE_free( work );
00067 exit_level_0:
00068     if( info == LAPACK_WORK_MEMORY_ERROR ) {
00069         LAPACKE_xerbla( "LAPACKE_zpstrf", info );
00070     }
00071     return info;
00072 }


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