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diff --git a/Project/glm/ext/quaternion_relational.hpp b/Project/glm/ext/quaternion_relational.hpp
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+/// @ref ext_quaternion_relational
+/// @file glm/ext/quaternion_relational.hpp
+///
+/// @defgroup ext_quaternion_relational GLM_EXT_quaternion_relational
+/// @ingroup ext
+///
+/// Exposes comparison functions for quaternion types that take a user defined epsilon values.
+///
+/// Include <glm/ext/quaternion_relational.hpp> to use the features of this extension.
+///
+/// @see core_vector_relational
+/// @see ext_vector_relational
+/// @see ext_matrix_relational
+/// @see ext_quaternion_float
+/// @see ext_quaternion_double
+
+#pragma once
+
+// Dependency:
+#include "../vector_relational.hpp"
+
+#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
+#	pragma message("GLM: GLM_EXT_quaternion_relational extension included")
+#endif
+
+namespace glm
+{
+	/// @addtogroup ext_quaternion_relational
+	/// @{
+
+	/// Returns the component-wise comparison of result x == y.
+	///
+	/// @tparam T Floating-point scalar types
+	/// @tparam Q Value from qualifier enum
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL vec<4, bool, Q> equal(qua<T, Q> const& x, qua<T, Q> const& y);
+
+	/// Returns the component-wise comparison of |x - y| < epsilon.
+	///
+	/// @tparam T Floating-point scalar types
+	/// @tparam Q Value from qualifier enum
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL vec<4, bool, Q> equal(qua<T, Q> const& x, qua<T, Q> const& y, T epsilon);
+
+	/// Returns the component-wise comparison of result x != y.
+	///
+	/// @tparam T Floating-point scalar types
+	/// @tparam Q Value from qualifier enum
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL vec<4, bool, Q> notEqual(qua<T, Q> const& x, qua<T, Q> const& y);
+
+	/// Returns the component-wise comparison of |x - y| >= epsilon.
+	///
+	/// @tparam T Floating-point scalar types
+	/// @tparam Q Value from qualifier enum
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL vec<4, bool, Q> notEqual(qua<T, Q> const& x, qua<T, Q> const& y, T epsilon);
+
+	/// @}
+} //namespace glm
+
+#include "quaternion_relational.inl"