+struct s_mc_snapshot;
+struct s_dw_type;
+
+int mmalloc_compare_heap(struct s_mc_snapshot* snapshot1, struct s_mc_snapshot* snapshot2);
+int mmalloc_linear_compare_heap(xbt_mheap_t heap1, xbt_mheap_t heap2);
+int init_heap_information(xbt_mheap_t heap1, xbt_mheap_t heap2, xbt_dynar_t to_ignore1, xbt_dynar_t to_ignore2);
+int compare_heap_area(int process_index, const void *area1, const void* area2, struct s_mc_snapshot* snapshot1, struct s_mc_snapshot* snapshot2, xbt_dynar_t previous, struct s_dw_type *type, int pointer_level);
+void reset_heap_information(void);