diff --git a/src/cmc/intervalheap.h b/src/cmc/intervalheap.h
index 2609b19..2b99a30 100644
--- a/src/cmc/intervalheap.h
+++ b/src/cmc/intervalheap.h
@@ -78,12 +78,6 @@ static const char *cmc_string_fmt_intervalheap = "struct %s<%s> "
         /* Value function table */                                           \
         struct SNAME##_fval *f_val;                                          \
                                                                              \
-        /* Function that returns an iterator to the start of the heap */     \
-        struct SNAME##_iter (*it_start)(struct SNAME *);                     \
-                                                                             \
-        /* Function that returns an iterator to the end of the heap */       \
-        struct SNAME##_iter (*it_end)(struct SNAME *);                       \
-                                                                             \
         /* Custom allocation functions */                                    \
         struct cmc_alloc_node *alloc;                                        \
                                                                              \
diff --git a/src/cmc/linkedlist.h b/src/cmc/linkedlist.h
index f2c7f5f..02d93fc 100644
--- a/src/cmc/linkedlist.h
+++ b/src/cmc/linkedlist.h
@@ -85,12 +85,6 @@ static const char *cmc_string_fmt_linkedlist = "struct %s<%s> "
                                                                              \
         /* Custom callback functions */                                      \
         struct cmc_callbacks *callbacks;                                     \
-                                                                             \
-        /* Function that returns an iterator to the start of the list */     \
-        struct SNAME##_iter (*it_start)(struct SNAME *);                     \
-                                                                             \
-        /* Function that returns an iterator to the end of the list */       \
-        struct SNAME##_iter (*it_end)(struct SNAME *);                       \
     };                                                                       \
                                                                              \
     /* Doubly-linked list node */                                            \
diff --git a/tests/main/src/intervalheap.c b/tests/main/src/intervalheap.c
index d15e63f..f1eefb1 100644
--- a/tests/main/src/intervalheap.c
+++ b/tests/main/src/intervalheap.c
@@ -8,8 +8,6 @@ struct intervalheap
     size_t count;
     int flag;
     struct intervalheap_fval *f_val;
-    struct intervalheap_iter (*it_start)(struct intervalheap *);
-    struct intervalheap_iter (*it_end)(struct intervalheap *);
     struct cmc_alloc_node *alloc;
     struct cmc_callbacks *callbacks;
 };
diff --git a/tests/main/src/linkedlist.c b/tests/main/src/linkedlist.c
index 9f3a6e5..52b12c2 100644
--- a/tests/main/src/linkedlist.c
+++ b/tests/main/src/linkedlist.c
@@ -9,8 +9,6 @@ struct linkedlist
     struct linkedlist_fval *f_val;
     struct cmc_alloc_node *alloc;
     struct cmc_callbacks *callbacks;
-    struct linkedlist_iter (*it_start)(struct linkedlist *);
-    struct linkedlist_iter (*it_end)(struct linkedlist *);
 };
 struct linkedlist_node
 {