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//------------------------------------------------------------------------------
// SuiteSparse/TestConfig/CCOLAMD/demo.cc
//------------------------------------------------------------------------------
// Copyright (c) 2024, Timothy A. Davis, All Rights Reserved.
// SPDX-License-Identifier: BSD-3-clause
//------------------------------------------------------------------------------
// TestConfig program
#include <iostream>
#include "ccolamd.h"
int main (void)
{
#define N 2
#define NNZ 4
int64_t n = N;
int64_t nzmax = NNZ;
int64_t Ap[N+1];
int64_t Ai[NNZ];
Ap [0] = 0;
Ap [1] = 2;
Ap [2] = NNZ;
Ai [0] = 0;
Ai [1] = 1;
Ai [2] = 0;
Ai [3] = 1;
int64_t stats [CCOLAMD_STATS] ;
int64_t P [N+1];
int64_t Cmem [N] ;
for (int k = 0; k < n; k++)
{
Cmem [k] = 0;
}
int64_t Alen = ccolamd_l_recommended (NNZ, n, n);
int64_t *Awork = (int64_t *) malloc (Alen * sizeof (int64_t));
memcpy (Awork, Ai, NNZ * sizeof (int64_t));
memcpy (P, Ap, (N+1) * sizeof (int64_t));
int result = ccolamd_l (n, n, Alen, Awork, P, nullptr, stats, Cmem);
ccolamd_l_report (stats) ;
for (int k = 0; k < n; k++)
std::cout << "P [" << k << "] = " << P [k] << std::endl;
free (Awork);
return ((result == 0) ? 1 : 0) ;
}
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