diff --git a/utils.hpp b/utils.hpp
index 14088ab..376a6b4 100644
--- a/utils.hpp
+++ b/utils.hpp
@@ -14,6 +14,9 @@
 template<typename T, typename T2> auto min(const T & a, const T2 & b) -> decltype(a | b) { return (a < b) ? T(a) : T(b); }
 template<typename T, typename T2> auto max(const T & a, const T2 & b) -> decltype(a | b) { return (a < b) ? T(b) : T(a); }
 
+/// To be sure that floating point numbers won't be casted to integers in ::abs()...
+template<typename T> T sureAbs(const T & x) { return (x < T(0)) ? -x : x; }
+
 template<typename T, template<class,class...> class C, class... Args>
 std::ostream& operator<<(std::ostream& os, const C<T,Args...>& objs)
 {