diff --git a/range.hpp b/range.hpp
index d8910182..ee056e67 100644
--- a/range.hpp
+++ b/range.hpp
@@ -21,9 +21,9 @@
 #ifndef __UTIL_RANGE_HPP
 #define __UTIL_RANGE_HPP
 
+#include <cstdint>
 #include <iostream>
 
-
 namespace util {
     /**
      * Represents a continuous range of values. Contains convenience functions
@@ -87,6 +87,12 @@ namespace util {
     };
 
 
+    // convenience typedefs
+    typedef util::range<float> rangef;
+    typedef util::range<uintmax_t> rangeu;
+    typedef util::range<intmax_t> rangei;
+
+    // ostream operators
     template <typename T>
     std::ostream&
     operator <<(std::ostream &os, const range<T> &rhs) {