remove copy operator

src/excit.c

@@ -201,21 +201,6 @@ int excit_type(excit_t it, enum excit_type_e *type)
 	return EXCIT_SUCCESS;
 }
 
-int excit_copy(excit_t dst, const excit_t src)
-{
-	if (!dst                   ||
-	    !src                   ||
-	    !src->func_table       ||
-	    src->type != dst->type ||
-	    src->dimension != dst->dimension)
-		return -EXCIT_EINVAL;
-	if (!src->func_table->copy)
-		return -EXCIT_ENOTSUP;
-	dst->func_table = src->func_table;
-	dst->dimension  = src->dimension;
-	return src->func_table->copy(dst, src);
-}
-
 int excit_next(excit_t it, ssize_t *indexes)
 {
 	if (!it || !it->func_table)

src/excit.h

@@ -198,14 +198,6 @@ excit_t excit_dup(const excit_t it);
  */
 void excit_free(excit_t it);
 
-
-/*
- * Copy an iterator.
- * "dst": the copy destination.
- * "src": the iterator to copy
- */
-int excit_copy(excit_t dst, const excit_t src);
-
 /*
  * Get the type of an iterator
  * "it": an iterator.
@@ -441,11 +433,11 @@ int excit_tleaf_init(excit_t it,
 		     const ssize_t *user_policy);
 
 /*
- * Split a tree at a given level.
+ * Split a tree at a given level. The behaviour is different from the generic function excit_split for the split might be sparse.
  * "it": a tleaf iterator.
  * "level": The level to split.
  * "n": The number of slices. n must divide the target level arity.
  * "out": an array of n allocated tleaf iterators.
- */	
-int tleaf_it_split_at_level(const excit_t it, const ssize_t level, const ssize_t n, excit_t *out);
+ */
+int tleaf_it_split(const excit_t it, const ssize_t level, const ssize_t n, excit_t *out);
 #endif