Abdelrahman Said
109 lines
4.0 KiB
C
109 lines
4.0 KiB
C
/*
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igraph library.
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Copyright (C) 2021 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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void call_and_print(igraph_t *graph, igraph_int_t pnode, igraph_neimode_t mode, igraph_loops_t loops) {
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igraph_vector_int_t eids;
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igraph_vector_int_init(&eids, 0);
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IGRAPH_ASSERT(igraph_incident(graph, &eids, pnode, mode, loops) == IGRAPH_SUCCESS);
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print_vector_int(&eids);
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igraph_vector_int_destroy(&eids);
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}
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int main(void) {
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igraph_t g_1, g_lm, g_lmu, g_s1, g_s2;
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igraph_small(&g_1, 1, 0, -1);
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igraph_small(&g_lm, 6, 1, 0,1, 0,2, 1,1, 1,3, 2,0, 2,0, 2,3, 3,4, 3,4, -1);
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igraph_small(&g_lmu, 6, 0, 0,1, 0,2, 1,1, 1,3, 2,0, 2,0, 2,3, 3,4, 3,4, -1);
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igraph_small(&g_s1, 2, 1, 0,1, 0,1, 1,0, 1,0, -1);
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igraph_small(&g_s2, 2, 1, 0,1, 1,0, 1,0, -1);
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igraph_vector_int_t eids;
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igraph_vector_int_init(&eids, 0);
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printf("One vertex:\n");
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call_and_print(&g_1, 0, IGRAPH_ALL, IGRAPH_LOOPS_ONCE);
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printf("Vertex with multiple edges, IGRAPH_IN:\n");
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call_and_print(&g_lm, 0, IGRAPH_IN, IGRAPH_LOOPS_ONCE);
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printf("Vertex with multiple edges, IGRAPH_OUT:\n");
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call_and_print(&g_lm, 0, IGRAPH_OUT, IGRAPH_LOOPS_ONCE);
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printf("Vertex with multiple edges, IGRAPH_ALL:\n");
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call_and_print(&g_lm, 0, IGRAPH_ALL, IGRAPH_LOOPS_TWICE);
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printf("Vertex with multiple edges, undirected:\n");
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call_and_print(&g_lmu, 0, IGRAPH_IN, IGRAPH_LOOPS_ONCE);
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printf("Vertex 1 with loop, IGRAPH_OUT, IGRAPH_NO_LOOPS:\n");
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call_and_print(&g_lm, 1, IGRAPH_OUT, IGRAPH_NO_LOOPS);
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printf("Vertex 1 with loop, IGRAPH_ALL, IGRAPH_NO_LOOPS:\n");
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call_and_print(&g_lm, 1, IGRAPH_ALL, IGRAPH_NO_LOOPS);
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printf("Vertex 1 with loop, undirected, IGRAPH_NO_LOOPS:\n");
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call_and_print(&g_lmu, 1, IGRAPH_IN, IGRAPH_NO_LOOPS);
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printf("Vertex 1 with loop, IGRAPH_OUT, IGRAPH_LOOPS_ONCE:\n");
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call_and_print(&g_lm, 1, IGRAPH_OUT, IGRAPH_LOOPS_ONCE);
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printf("Vertex 1 with loop, IGRAPH_ALL, IGRAPH_LOOPS_ONCE:\n");
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call_and_print(&g_lm, 1, IGRAPH_ALL, IGRAPH_LOOPS_ONCE);
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printf("Vertex 1 with loop, undirected, IGRAPH_LOOPS_ONCE:\n");
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call_and_print(&g_lmu, 1, IGRAPH_IN, IGRAPH_LOOPS_ONCE);
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printf("Vertex 1 with loop, IGRAPH_OUT, IGRAPH_LOOPS_TWICE:\n");
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call_and_print(&g_lm, 1, IGRAPH_OUT, IGRAPH_LOOPS_TWICE);
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printf("Vertex 1 with loop, IGRAPH_ALL, IGRAPH_LOOPS_TWICE:\n");
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call_and_print(&g_lm, 1, IGRAPH_ALL, IGRAPH_LOOPS_TWICE);
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printf("Vertex 1 with loop, undirected, IGRAPH_LOOPS_TWICE:\n");
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call_and_print(&g_lmu, 1, IGRAPH_IN, IGRAPH_LOOPS_TWICE);
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printf("Graph with 2 edges from 0 to 1, and 2 from 1 to 0, IGRAPH_ALL:\n");
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call_and_print(&g_s1, 0, IGRAPH_ALL, IGRAPH_LOOPS_ONCE);
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printf("Graph with 1 edge from 0 to 1, and 2 from 1 to 0, IGRAPH_ALL:\n");
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call_and_print(&g_s2, 0, IGRAPH_ALL, IGRAPH_LOOPS_ONCE);
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VERIFY_FINALLY_STACK();
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printf("Vertex not in graph:\n");
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CHECK_ERROR(igraph_neighbors(&g_lm, &eids, 100, IGRAPH_OUT, IGRAPH_LOOPS_ONCE, IGRAPH_NO_MULTIPLE), IGRAPH_EINVVID);
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printf("Non-existent mode:\n");
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CHECK_ERROR(igraph_neighbors(&g_lm, &eids, 0, (igraph_neimode_t) 100, IGRAPH_LOOPS_ONCE, IGRAPH_NO_MULTIPLE), IGRAPH_EINVMODE);
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igraph_destroy(&g_1);
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igraph_destroy(&g_lm);
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igraph_destroy(&g_lmu);
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igraph_destroy(&g_s1);
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igraph_destroy(&g_s2);
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igraph_vector_int_destroy(&eids);
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VERIFY_FINALLY_STACK();
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return 0;
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}
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