Add graph references

2026-06-28 13:49:01 +01:00
parent 0a9807e448
commit a11edf0c53
2578 changed files with 868045 additions and 0 deletions
@@ -0,0 +1,49 @@
+/*
+   igraph library.
+   Copyright (C) 2022  The igraph development team <igraph@igraph.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include <igraph.h>
+#include "test_utilities.h"
+
+int main(void) {
+    igraph_matrix_t mat;
+
+    igraph_matrix_init(&mat, 3, 3);
+    MATRIX(mat, 0, 0) =  1e-11;
+    MATRIX(mat, 0, 1) = -1e-11;
+    MATRIX(mat, 0, 2) =  1e-10;
+    MATRIX(mat, 1, 0) = -1e-10;
+    MATRIX(mat, 1, 1) = IGRAPH_INFINITY;
+    MATRIX(mat, 1, 2) = -IGRAPH_INFINITY;
+    MATRIX(mat, 2, 0) = IGRAPH_NAN;
+    MATRIX(mat, 2, 1) = 0.0;
+    MATRIX(mat, 2, 2) = 1.0;
+
+    print_matrix(&mat);
+    igraph_matrix_zapsmall(&mat, 0);
+    print_matrix(&mat);
+
+    CHECK_ERROR(igraph_matrix_zapsmall(&mat, -1), IGRAPH_EINVAL);
+
+    igraph_matrix_destroy(&mat);
+
+    /* TODO complex case */
+
+    VERIFY_FINALLY_STACK();
+
+    return 0;
+}