+++ /dev/null
-/* Copyright (c) 2012, 2014. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "iterator.h"
-
-/* http://stackoverflow.com/a/3348142 */
-static int rand_int(int n)
-{
- int limit = RAND_MAX - RAND_MAX % n;
- int rnd;
-
- do {
- rnd = rand();
- } while (rnd >= limit);
-
- return rnd % n;
-}
-
-void xbt_dynar_shuffle_in_place(xbt_dynar_t indices_list)
-{
- int i, j;
-
- for (i = xbt_dynar_length(indices_list) - 1; i > 0; i--) {
- j = rand_int(i + 1);
- xbt_dynar_swap_elements(indices_list, int, i, j);
- }
-}
-/**************************************/
-
-/* Allocates and initializes a new xbt_dynar iterator for list, using criteria_fn as iteration criteria
- criteria_fn: given an array size, it must generate a list containing the indices of every item in some order */
-xbt_dynar_iterator_t xbt_dynar_iterator_new(xbt_dynar_t list, xbt_dynar_t (*criteria_fn)(int))
-{
- xbt_dynar_iterator_t it = xbt_new(xbt_dynar_iterator_s, 1);
-
- it->list = list;
- it->length = xbt_dynar_length(list);
- it->indices_list = criteria_fn(it->length); //xbt_dynar_new(sizeof(int), NULL);
- it->criteria_fn = criteria_fn;
- it->current = 0;
-
- return it;
-}
-
-void xbt_dynar_iterator_reset(xbt_dynar_iterator_t it)
-{
- xbt_dynar_free_container(&(it->indices_list));
- it->indices_list = it->criteria_fn(it->length);
- it->current = 0;
-}
-
-void xbt_dynar_iterator_seek(xbt_dynar_iterator_t it, int pos)
-{
- it->current = pos;
-}
-
-/* Returns the next element iterated by iterator it, NULL if there are no more elements */
-void *xbt_dynar_iterator_next(xbt_dynar_iterator_t it)
-{
- int *next;
- if (it->current >= it->length) {
- return NULL;
- } else {
- next = xbt_dynar_get_ptr(it->indices_list, it->current);
- it->current++;
- return xbt_dynar_get_ptr(it->list, *next);
- }
-}
-
-void xbt_dynar_iterator_delete(xbt_dynar_iterator_t it)
-{
- xbt_dynar_free_container(&(it->indices_list));
- xbt_free_ref(&it);
-}
-
-xbt_dynar_t forward_indices_list(int size)
-{
- xbt_dynar_t indices_list = xbt_dynar_new(sizeof(int), NULL);
- int i;
- for (i = 0; i < size; i++)
- xbt_dynar_push_as(indices_list, int, i);
- return indices_list;
-}
-
-xbt_dynar_t reverse_indices_list(int size)
-{
- xbt_dynar_t indices_list = xbt_dynar_new(sizeof(int), NULL);
- int i;
- for (i = size-1; i >= 0; i--)
- xbt_dynar_push_as(indices_list, int, i);
- return indices_list;
-}
-
-xbt_dynar_t random_indices_list(int size)
-{
- xbt_dynar_t indices_list = forward_indices_list(size);
- xbt_dynar_shuffle_in_place(indices_list);
- return indices_list;
-}
