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 +1,161 @@
+/*
+   igraph library.
+   Copyright (C) 2007-2012  Gabor Csardi <csardi.gabor@gmail.com>
+   334 Harvard street, Cambridge MA, 02139 USA
+
+   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, write to the Free Software
+   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301 USA
+
+*/
+
+#include <igraph.h>
+#include <stdlib.h>
+
+#include "test_utilities.h"
+
+int main(void) {
+
+    igraph_vector_t v1, v2, v3, v4, v5;
+    igraph_real_t min, max;
+    igraph_int_t imin, imax;
+    int i;
+
+    igraph_vector_init_range(&v1, 1, 11);
+    igraph_vector_init_range(&v2, 0, 10);
+
+    igraph_vector_swap(&v1, &v2);
+    print_vector_format(&v1, stdout, "%g");
+    print_vector_format(&v2, stdout, "%g");
+
+    igraph_vector_swap_elements(&v1, 0, 9);
+    igraph_vector_swap_elements(&v1, 3, 6);
+    print_vector_format(&v1, stdout, "%g");
+
+    igraph_vector_reverse(&v2);
+    print_vector_format(&v2, stdout, "%g");
+    igraph_vector_reverse(&v2);
+    print_vector_format(&v2, stdout, "%g");
+
+    /* reverse an odd number of elements */
+    igraph_vector_reverse_section(&v2, 3, 6);
+    print_vector_format(&v2, stdout, "%g");
+    igraph_vector_reverse_section(&v2, 3, 6);
+    print_vector_format(&v2, stdout, "%g");
+
+    /* reverse an even number of elements */
+    igraph_vector_reverse_section(&v2, 3, 7);
+    print_vector_format(&v2, stdout, "%g");
+    igraph_vector_reverse_section(&v2, 3, 7);
+    print_vector_format(&v2, stdout, "%g");
+
+    igraph_vector_rotate_left(&v2, 3);
+    print_vector_format(&v2, stdout, "%g");
+    igraph_vector_rotate_left(&v2, -3);
+    print_vector_format(&v2, stdout, "%g");
+
+    igraph_vector_destroy(&v1);
+    igraph_vector_destroy(&v2);
+
+    igraph_vector_init(&v1, 10);
+    igraph_vector_init(&v2, 10);
+    igraph_vector_fill(&v1, 4);
+    igraph_vector_fill(&v2, 2);
+
+    igraph_vector_add(&v1, &v2);
+    print_vector_format(&v1, stdout, "%g");
+    igraph_vector_sub(&v1, &v2);
+    print_vector_format(&v1, stdout, "%g");
+    igraph_vector_div(&v1, &v2);
+    print_vector_format(&v1, stdout, "%g");
+    igraph_vector_mul(&v1, &v2);
+    print_vector_format(&v1, stdout, "%g");
+
+    igraph_vector_minmax(&v1, &min, &max);
+    igraph_vector_which_minmax(&v1, &imin, &imax);
+    printf("%g %g %" IGRAPH_PRId " %" IGRAPH_PRId "\n", min, max, imin, imax);
+
+    igraph_vector_destroy(&v1);
+    igraph_vector_destroy(&v2);
+
+    igraph_vector_init_range(&v1, 1, 11);
+    igraph_vector_init(&v2, 10);
+    for (i = 0; i < 10; i++) {
+        VECTOR(v2)[i] = 10 - i;
+    }
+
+    igraph_vector_minmax(&v1, &min, &max);
+    igraph_vector_which_minmax(&v1, &imin, &imax);
+    printf("%g %g %" IGRAPH_PRId " %" IGRAPH_PRId "\n", min, max, imin, imax);
+    igraph_vector_minmax(&v2, &min, &max);
+    igraph_vector_which_minmax(&v2, &imin, &imax);
+    printf("%g %g %" IGRAPH_PRId " %" IGRAPH_PRId "\n", min, max, imin, imax);
+
+    if (igraph_vector_isnull(&v1)) {
+        return 1;
+    }
+    igraph_vector_null(&v1);
+    if (!igraph_vector_isnull(&v1)) {
+        return 2;
+    }
+
+    igraph_vector_destroy(&v1);
+    igraph_vector_destroy(&v2);
+
+    igraph_vector_init_int(&v1, 10, 3, 5, 6, 6, 6, 7, 8, 8, 9, 10);
+    igraph_vector_init_int(&v2, 10, 1, 3, 3, 6, 6, 9, 12, 15, 17, 20);
+    igraph_vector_init(&v3, 0);
+    igraph_vector_init(&v4, 0);
+    igraph_vector_init(&v5, 0);
+
+    igraph_vector_intersect_sorted(&v1, &v2, &v3);
+    print_vector_format(&v3, stdout, "%g");
+
+    igraph_vector_difference_sorted(&v1, &v2, &v3);
+    print_vector_format(&v3, stdout, "%g");
+    igraph_vector_difference_sorted(&v2, &v1, &v3);
+    print_vector_format(&v3, stdout, "%g");
+    igraph_vector_difference_sorted(&v2, &v2, &v3);
+    print_vector_format(&v3, stdout, "%g");
+
+    igraph_vector_difference_and_intersection_sorted(&v1, &v2, &v3, &v4, &v5);
+    print_vector_format(&v3, stdout, "%g");
+    print_vector_format(&v4, stdout, "%g");
+    print_vector_format(&v5, stdout, "%g");
+
+    igraph_vector_destroy(&v1);
+    igraph_vector_destroy(&v2);
+    igraph_vector_destroy(&v3);
+    igraph_vector_destroy(&v4);
+    igraph_vector_destroy(&v5);
+
+    igraph_vector_init_range(&v1, 0, 50);
+    igraph_vector_init_range(&v2, 20, 23);
+    igraph_vector_init(&v3, 0);
+
+    igraph_vector_intersect_sorted(&v1, &v2, &v3);
+    print_vector_format(&v3, stdout, "%g");
+    igraph_vector_difference_sorted(&v1, &v2, &v3);
+    print_vector_format(&v3, stdout, "%g");
+    igraph_vector_difference_sorted(&v2, &v1, &v3);
+    print_vector_format(&v3, stdout, "%g");
+
+    igraph_vector_destroy(&v1);
+    igraph_vector_destroy(&v2);
+    igraph_vector_destroy(&v3);
+
+    VERIFY_FINALLY_STACK();
+
+    return 0;
+}