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diff --git a/src/glm/gtx/ulp.hpp b/src/glm/gtx/ulp.hpp
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+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2011-02-21
+// Updated : 2009-02-21
+// Licence : This source is under MIT License
+// File    : glm/gtx/ulp.hpp
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Dependency:
+// - GLM core
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+#ifndef glm_gtx_ulp
+#define glm_gtx_ulp
+
+// Dependency:
+#include "../glm.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(glm_ext))
+#	pragma message("GLM: GLM_GTX_ulp extension included")
+#endif
+
+namespace glm{
+namespace gtx{
+namespace ulp ///< GLM_GTX_ulp extension: Precision calculation functions
+{
+	/// \addtogroup gtx_ulp
+	/// @{
+
+	//! Return the next ULP value(s) after the input value(s).
+	//! From GLM_GTX_ulp extension.
+    template <typename genType>
+    genType next_float(genType const & x);
+        
+	//! Return the previous ULP value(s) before the input value(s).
+	//! From GLM_GTX_ulp extension.
+    template <typename genType>
+    genType prev_float(genType const & x);
+
+	//! Return the value(s) ULP distance after the input value(s).
+	//! From GLM_GTX_ulp extension.
+    template <typename genType>
+    genType next_float(genType const & x, uint const & Distance);
+        
+    //! Return the value(s) ULP distance before the input value(s).
+	//! From GLM_GTX_ulp extension.
+    template <typename genType>
+    genType prev_float(genType const & x, uint const & Distance);
+        
+    //! Return the distance in the number of ULP between 2 scalars.
+	//! From GLM_GTX_ulp extension.
+    template <typename T>
+    uint float_distance(T const & x, T const & y);
+        
+    //! Return the distance in the number of ULP between 2 vectors.
+	//! From GLM_GTX_ulp extension.
+    template<typename T, template<typename> class vecType>
+    vecType<uint> float_distance(vecType<T> const & x, vecType<T> const & y);
+        
+	///@}
+}// namespace ulp
+}// namespace gtx
+}// namespace glm
+
+#include "ulp.inl"
+
+namespace glm{using namespace gtx::ulp;}
+
+#endif//glm_gtx_ulp
+