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+/// @ref gtc_epsilon
+/// @file glm/gtc/epsilon.hpp
+///
+/// @see core (dependence)
+/// @see gtc_half_float (dependence)
+/// @see gtc_quaternion (dependence)
+///
+/// @defgroup gtc_epsilon GLM_GTC_epsilon
+/// @ingroup gtc
+///
+/// @brief Comparison functions for a user defined epsilon values.
+///
+/// <glm/gtc/epsilon.hpp> need to be included to use these functionalities.
+
+#pragma once
+
+// Dependencies
+#include "../detail/setup.hpp"
+#include "../detail/precision.hpp"
+
+#if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED)
+# pragma message("GLM: GLM_GTC_epsilon extension included")
+#endif
+
+namespace glm
+{
+ /// @addtogroup gtc_epsilon
+ /// @{
+
+ /// Returns the component-wise comparison of |x - y| < epsilon.
+ /// True if this expression is satisfied.
+ ///
+ /// @see gtc_epsilon
+ template <typename T, precision P, template <typename, precision> class vecType>
+ GLM_FUNC_DECL vecType<bool, P> epsilonEqual(
+ vecType<T, P> const & x,
+ vecType<T, P> const & y,
+ T const & epsilon);
+
+ /// Returns the component-wise comparison of |x - y| < epsilon.
+ /// True if this expression is satisfied.
+ ///
+ /// @see gtc_epsilon
+ template <typename genType>
+ GLM_FUNC_DECL bool epsilonEqual(
+ genType const & x,
+ genType const & y,
+ genType const & epsilon);
+
+ /// Returns the component-wise comparison of |x - y| < epsilon.
+ /// True if this expression is not satisfied.
+ ///
+ /// @see gtc_epsilon
+ template <typename genType>
+ GLM_FUNC_DECL typename genType::boolType epsilonNotEqual(
+ genType const & x,
+ genType const & y,
+ typename genType::value_type const & epsilon);
+
+ /// Returns the component-wise comparison of |x - y| >= epsilon.
+ /// True if this expression is not satisfied.
+ ///
+ /// @see gtc_epsilon
+ template <typename genType>
+ GLM_FUNC_DECL bool epsilonNotEqual(
+ genType const & x,
+ genType const & y,
+ genType const & epsilon);
+
+ /// @}
+}//namespace glm
+
+#include "epsilon.inl"