Abdelrahman Said
79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
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igraph library.
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Copyright (C) 2010-2012 Gabor Csardi <csardi.gabor@gmail.com>
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334 Harvard st, Cambridge MA, 02139 USA
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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, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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#include <igraph.h>
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#define DIM1 10
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#define DIM2 5
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#define RANDINT(a) (igraph_rng_get_integer(igraph_rng_default(), 0, (a)))
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int main(void) {
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igraph_matrix_t mat;
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igraph_sparsemat_t spmat, spmat2;
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igraph_real_t m1, m2;
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/* Initialize the library. */
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igraph_setup();
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igraph_rng_seed(igraph_rng_default(), 42);
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igraph_sparsemat_init(&spmat, DIM1, DIM2, 20);
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igraph_sparsemat_entry(&spmat, 1, 2, -1.0);
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igraph_sparsemat_entry(&spmat, 3, 2, 10.0);
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for (int i = 0; i < 10; i++) {
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igraph_sparsemat_entry(&spmat, RANDINT(DIM1 - 1), RANDINT(DIM2 - 1), 1.0);
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}
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igraph_sparsemat_entry(&spmat, 1, 2, -1.0);
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igraph_sparsemat_entry(&spmat, 3, 2, 10.0);
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igraph_sparsemat_compress(&spmat, &spmat2);
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igraph_matrix_init(&mat, 0, 0);
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igraph_sparsemat_as_matrix(&mat, &spmat2);
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m1 = igraph_sparsemat_min(&spmat2);
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m2 = igraph_matrix_min(&mat);
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if (m1 != m2) {
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printf("%f %f\n", m1, m2);
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return 1;
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}
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m1 = igraph_sparsemat_max(&spmat2);
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m2 = igraph_matrix_max(&mat);
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if (m1 != m2) {
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printf("%f %f\n", m1, m2);
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return 2;
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}
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igraph_sparsemat_minmax(&spmat2, &m1, &m2);
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if (m1 != igraph_matrix_min(&mat)) {
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return 3;
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}
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if (m2 != igraph_matrix_max(&mat)) {
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return 4;
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}
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igraph_matrix_destroy(&mat);
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igraph_sparsemat_destroy(&spmat);
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igraph_sparsemat_destroy(&spmat2);
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return 0;
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}
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