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diff --git a/src/glm/gtx/integer.hpp b/src/glm/gtx/integer.hpp
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+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2005-12-24
+// Updated : 2006-11-14
+// Licence : This source is under MIT License
+// File    : glm/gtx/integer.hpp
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Dependency:
+// - GLM core
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+#ifndef glm_gtx_integer
+#define glm_gtx_integer
+
+// Dependency:
+#include "../glm.hpp"
+
+#if(defined(GLM_MESSAGES) && !defined(glm_ext))
+#	pragma message("GLM: GLM_GTX_integer extension included")
+#endif
+
+namespace glm{
+namespace gtx{
+namespace integer ///< GLM_GTX_integer extension: Add support for integer for core functions
+{
+	/// \addtogroup gtx_integer
+	/// @{
+
+	//! Returns x raised to the y power. 
+	//! From GLM_GTX_integer extension.
+	int pow(int x, int y);
+
+	//! Returns the positive square root of x.
+	//! From GLM_GTX_integer extension.
+	int sqrt(int x);
+
+	//! Modulus. Returns x - y * floor(x / y) for each component in x using the floating point value y.
+	//! From GLM_GTX_integer extension.
+	int mod(int x, int y);
+
+	//! Return the factorial value of a number (!12 max, integer only)
+	//! From GLM_GTX_integer extension.
+	template <typename genType> 
+	genType factorial(genType const & x);
+
+	/// @}
+}//namespace integer
+}//namespace gtx
+}//namespace glm
+
+#include "integer.inl"
+
+namespace glm{using namespace gtx::integer;}
+
+#endif//glm_gtx_integer