diff -r 7be3ae7ffb58 -r 85f55abea563 src/ucx/utils.h
--- a/src/ucx/utils.h	Thu May 03 09:49:38 2018 +0200
+++ b/src/ucx/utils.h	Thu May 03 10:09:49 2018 +0200
@@ -175,6 +175,25 @@
  */
 int ucx_longintcmp(const void *i1, const void *i2, void *data);
 
+
+/**
+ * Distance function for integers of type int.
+ * @param i1 pointer to integer one
+ * @param i2 pointer to integer two
+ * @param data omitted
+ * @return i1 minus i2
+ */
+intmax_t ucx_intdist(const void *i1, const void *i2, void *data);
+
+/**
+ * Distance function for integers of type long int.
+ * @param i1 pointer to long integer one
+ * @param i2 pointer to long integer two
+ * @param data omitted
+ * @return i1 minus i2
+ */
+intmax_t ucx_longintdist(const void *i1, const void *i2, void *data);
+
 /**
  * Compares two real numbers of type float.
  * @param f1 pointer to float one