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// Copyright (c) 2004
// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel). All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/next/Installation/config/support/test_TAUCS.cpp $
// $Id: test_TAUCS.cpp 67093 2012-01-13 11:22:39Z lrineau $
//
// Author(s) : Laurent Saboret
// Test if TAUCS is available
#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <sys/types.h>
#include <sys/timeb.h>
#define TAUCS_CORE_DOUBLE
// In GCC 3.x, <complex.h> includes <complex> and
// complains if we include <complex.h> within "extern C {}"
#if defined(__GNUC__)
#undef __DEPRECATED
#include <complex.h>
#endif
extern "C"
{
// Include TAUCS main header taucs.h
#include <taucs.h>
}
// Avoid error with std::min() and std::max()
#undef min
#undef max
int main(int argc, char* argv[])
{
// Create a TAUCS matrix to link with TAUCS main library
int m = 4,n = 4,nnz = 4, i;
taucs_ccs_matrix* pMatrix = taucs_ccs_create(m, n, nnz, TAUCS_DOUBLE);
pMatrix->colptr[0] = 0;
pMatrix->colptr[1] = 4;
for ( i = 0; i < 4; i++ )
{
pMatrix->rowind[i] = i;
pMatrix->taucs_values[i] = i;
}
// Call a method needing TAUCS external library Metis
int* perm;
int* invperm;
taucs_ccs_order(pMatrix,
&perm,
&invperm,
(char*)"metis");
// Call dpotrf() Lapack routine (Cholesky factorization)
int sn_size = 0;
int lda = 1;
int info;
taucs_potrf((char*)"LOWER",
&sn_size,
NULL,
&lda,
&info);
// ftime() is in compat lib. on FreeBSD and crypto lib. on MacOSX
struct timeb tb;
ftime(&tb);
// TAUCS provides no version number :-(
// Version 1 is obsolete, thus we assume version 2 (latest is 2.2 on 03/2006)
std::cout << "version=2.x" << std::endl;
// clean up
taucs_dccs_free(pMatrix);
return 0;
}
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