3 /* A few tests for the xbt_heap module */
5 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
14 #include "gras/virtu.h" /* time manipulation in bench */
16 #define MAX_TEST 1000000
18 int compare_double(const void *a, const void *b);
19 void test_heap_validity(int size);
20 void test_heap_mean_operation(int size);
21 void test_reset_heap(xbt_heap_t heap,int size);
24 int compare_double(const void *a, const void *b)
38 void test_heap_validity(int size)
40 xbt_heap_t heap = xbt_heap_new(size, NULL);
41 double *tab = calloc(size, sizeof(double));
44 for (i = 0; i < size; i++) {
45 tab[i] = (10.0 * rand() / (RAND_MAX + 1.0));
46 xbt_heap_push(heap, NULL, tab[i]);
49 qsort(tab, size, sizeof(double), compare_double);
51 for (i = 0; i < size; i++) {
52 /* printf("%lg" " ", xbt_heap_maxkey(heap)); */
53 if (xbt_heap_maxkey(heap) != tab[i]) {
54 fprintf(stderr, "Problem !\n");
61 printf("Validity test complete!\n");
64 void test_heap_mean_operation(int size)
66 xbt_heap_t heap = xbt_heap_new(size, NULL);
71 date = gras_os_time() * 1000000;
72 for (i = 0; i < size; i++)
73 xbt_heap_push(heap, NULL, (10.0 * rand() / (RAND_MAX + 1.0)));
74 date = gras_os_time() * 1000000 - date;
75 printf("Creation time %d size heap : %g\n", size, date);
77 date = gras_os_time() * 1000000;
78 for (j = 0; j < MAX_TEST; j++) {
81 test_reset_heap(heap,size);
83 val = xbt_heap_maxkey(heap);
85 xbt_heap_push(heap, NULL, 3.0 * val);
87 date = gras_os_time() * 1000000 - date;
88 printf("Mean access time for a %d size heap : %g\n", size,
89 date * 1.0 / (MAX_TEST + 0.0));
94 void test_reset_heap(xbt_heap_t heap,int size)
98 heap = xbt_heap_new(size, NULL);
100 for (i = 0; i < size; i++){
101 xbt_heap_push(heap, NULL, (10.0 * rand() / (RAND_MAX + 1.0)));
106 int main(int argc, char **argv)
109 for (size = 100; size < 10000; size *= 10) {
110 test_heap_validity(size);
111 test_heap_mean_operation(size);