Abdelrahman Said
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*
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igraph library.
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Copyright (C) 2007-2025 The igraph development team <igraph@igraph.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <igraph.h>
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#include "test_utilities.h"
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int main(void) {
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igraph_t g, g2;
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igraph_bool_t iso;
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// Franklin graph: [5, -5]^6x
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igraph_lcf_small(&g, 12, 5, -5, 6, 0);
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igraph_famous(&g2, "franklin");
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igraph_isomorphic(&g, &g2, &iso);
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IGRAPH_ASSERT(iso);
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igraph_destroy(&g);
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igraph_destroy(&g2);
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// [3, -2]^4, n=8
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igraph_lcf_small(&g, 8, 3, -2, 4, 0);
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IGRAPH_ASSERT(igraph_ecount(&g) == 16);
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igraph_destroy(&g);
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// [2, -2]^2, n=2
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igraph_lcf_small(&g, 2, 2, -2, 2, 0);
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IGRAPH_ASSERT(igraph_ecount(&g) == 1);
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igraph_destroy(&g);
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// [2]^2, n=2
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igraph_lcf_small(&g, 2, 2, 2, 0);
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IGRAPH_ASSERT(igraph_ecount(&g) == 1);
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igraph_destroy(&g);
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// Regression test for bug #996
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igraph_lcf_small(&g, 0, 0);
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IGRAPH_ASSERT(igraph_ecount(&g) == 0 && igraph_vcount(&g) == 0);
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igraph_destroy(&g);
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VERIFY_FINALLY_STACK();
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return 0;
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}
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