Initial commit: Final state of the master project

Research/inc/glm/gtc/epsilon.inl

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+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+/// 
+/// The above copyright notice and this permission notice shall be included in
+/// all copies or substantial portions of the Software.
+/// 
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+/// THE SOFTWARE.
+///
+/// @ref gtc_epsilon
+/// @file glm/gtc/epsilon.inl
+/// @date 2012-04-07 / 2012-04-07
+/// @author Christophe Riccio
+///////////////////////////////////////////////////////////////////////////////////
+
+// 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 detail::tvec4<bool, P> epsilonEqual
+	(
+		detail::tquat<T, P> const & x,
+		detail::tquat<T, P> const & y,
+		T const & epsilon
+	)
+	{
+		detail::tvec4<T, P> v(x.x - y.x, x.y - y.y, x.z - y.z, x.w - y.w);
+		return lessThan(abs(v), detail::tvec4<T, P>(epsilon));
+	}
+
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER detail::tvec4<bool, P> epsilonNotEqual
+	(
+		detail::tquat<T, P> const & x,
+		detail::tquat<T, P> const & y,
+		T const & epsilon
+	)
+	{
+		detail::tvec4<T, P> v(x.x - y.x, x.y - y.y, x.z - y.z, x.w - y.w);
+		return greaterThanEqual(abs(v), detail::tvec4<T, P>(epsilon));
+	}
+}//namespace glm