1 files changed, 125 insertions, 0 deletions

diff --git a/external/include/glm/gtc/epsilon.inl b/external/include/glm/gtc/epsilon.inl
new file mode 100644
index 0000000..b5577d9
--- /dev/null
+++ b/external/include/glm/gtc/epsilon.inl
@@ -0,0 +1,125 @@
+/// @ref gtc_epsilon
+/// @file glm/gtc/epsilon.inl
+
+// Dependency:
+#include "quaternion.hpp"
+#include "../vector_relational.hpp"
+#include "../common.hpp"
+#include "../vec2.hpp"
+#include "../vec3.hpp"
+#include "../vec4.hpp"
+
+namespace glm
+{
+	template <>
+	GLM_FUNC_QUALIFIER bool epsilonEqual
+	(
+		float const & x,
+		float const & y,
+		float const & epsilon
+	)
+	{
+		return abs(x - y) < epsilon;
+	}
+
+	template <>
+	GLM_FUNC_QUALIFIER bool epsilonEqual
+	(
+		double const & x,
+		double const & y,
+		double const & epsilon
+	)
+	{
+		return abs(x - y) < epsilon;
+	}
+
+	template <>
+	GLM_FUNC_QUALIFIER bool epsilonNotEqual
+	(
+		float const & x,
+		float const & y,
+		float const & epsilon
+	)
+	{
+		return abs(x - y) >= epsilon;
+	}
+
+	template <>
+	GLM_FUNC_QUALIFIER bool epsilonNotEqual
+	(
+		double const & x,
+		double const & y,
+		double const & epsilon
+	)
+	{
+		return abs(x - y) >= epsilon;
+	}
+
+	template <typename T, precision P, template <typename, precision> class vecType>
+	GLM_FUNC_QUALIFIER vecType<bool, P> epsilonEqual
+	(
+		vecType<T, P> const & x,
+		vecType<T, P> const & y,
+		T const & epsilon
+	)
+	{
+		return lessThan(abs(x - y), vecType<T, P>(epsilon));
+	}
+
+	template <typename T, precision P, template <typename, precision> class vecType>
+	GLM_FUNC_QUALIFIER vecType<bool, P> epsilonEqual
+	(
+		vecType<T, P> const & x,
+		vecType<T, P> const & y,
+		vecType<T, P> const & epsilon
+	)
+	{
+		return lessThan(abs(x - y), vecType<T, P>(epsilon));
+	}
+
+	template <typename T, precision P, template <typename, precision> class vecType>
+	GLM_FUNC_QUALIFIER vecType<bool, P> epsilonNotEqual
+	(
+		vecType<T, P> const & x,
+		vecType<T, P> const & y,
+		T const & epsilon
+	)
+	{
+		return greaterThanEqual(abs(x - y), vecType<T, P>(epsilon));
+	}
+
+	template <typename T, precision P, template <typename, precision> class vecType>
+	GLM_FUNC_QUALIFIER vecType<bool, P> epsilonNotEqual
+	(
+		vecType<T, P> const & x,
+		vecType<T, P> const & y,
+		vecType<T, P> const & epsilon
+	)
+	{
+		return greaterThanEqual(abs(x - y), vecType<T, P>(epsilon));
+	}
+
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER tvec4<bool, P> epsilonEqual
+	(
+		tquat<T, P> const & x,
+		tquat<T, P> const & y,
+		T const & epsilon
+	)
+	{
+		tvec4<T, P> v(x.x - y.x, x.y - y.y, x.z - y.z, x.w - y.w);
+		return lessThan(abs(v), tvec4<T, P>(epsilon));
+	}
+
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER tvec4<bool, P> epsilonNotEqual
+	(
+		tquat<T, P> const & x,
+		tquat<T, P> const & y,
+		T const & epsilon
+	)
+	{
+		tvec4<T, P> v(x.x - y.x, x.y - y.y, x.z - y.z, x.w - y.w);
+		return greaterThanEqual(abs(v), tvec4<T, P>(epsilon));
+	}
+}//namespace glm