glm/test/gtc/gtc_epsilon.cpp

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///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
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/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
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/// 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.
///
/// Restrictions:
/// By making use of the Software for military purposes, you choose to make
/// a Bunny unhappy.
///
/// 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.
///
/// @file test/gtc/gtc_epsilon.cpp
/// @date 2012-09-19 / 2014-11-25
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////
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#include <glm/gtc/epsilon.hpp>
#include <glm/gtc/constants.hpp>
#include <glm/vector_relational.hpp>
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int test_defined()
{
glm::epsilonEqual(glm::vec2(), glm::vec2(), glm::vec2());
glm::epsilonEqual(glm::vec3(), glm::vec3(), glm::vec3());
glm::epsilonEqual(glm::vec4(), glm::vec4(), glm::vec4());
glm::epsilonNotEqual(glm::vec2(), glm::vec2(), glm::vec2());
glm::epsilonNotEqual(glm::vec3(), glm::vec3(), glm::vec3());
glm::epsilonNotEqual(glm::vec4(), glm::vec4(), glm::vec4());
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glm::epsilonEqual(glm::vec2(), glm::vec2(), 0.0f);
glm::epsilonEqual(glm::vec3(), glm::vec3(), 0.0f);
glm::epsilonEqual(glm::vec4(), glm::vec4(), 0.0f);
glm::epsilonEqual(glm::quat(), glm::quat(), 0.0f);
glm::epsilonNotEqual(glm::vec2(), glm::vec2(), 0.0f);
glm::epsilonNotEqual(glm::vec3(), glm::vec3(), 0.0f);
glm::epsilonNotEqual(glm::vec4(), glm::vec4(), 0.0f);
glm::epsilonNotEqual(glm::quat(), glm::quat(), 0.0f);
return 0;
}
template <typename T>
int test_equal()
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{
int Error(0);
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{
T A = glm::epsilon<T>();
T B = glm::epsilon<T>();
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Error += glm::epsilonEqual(A, B, glm::epsilon<T>() * T(2)) ? 0 : 1;
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}
{
T A(0);
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T B = static_cast<T>(0) + glm::epsilon<T>();
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Error += glm::epsilonEqual(A, B, glm::epsilon<T>() * T(2)) ? 0 : 1;
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}
{
T A(0);
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T B = static_cast<T>(0) - glm::epsilon<T>();
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Error += glm::epsilonEqual(A, B, glm::epsilon<T>() * T(2)) ? 0 : 1;
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}
{
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T A = static_cast<T>(0) + glm::epsilon<T>();
T B = static_cast<T>(0);
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Error += glm::epsilonEqual(A, B, glm::epsilon<T>() * T(2)) ? 0 : 1;
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}
{
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T A = static_cast<T>(0) - glm::epsilon<T>();
T B = static_cast<T>(0);
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Error += glm::epsilonEqual(A, B, glm::epsilon<T>() * T(2)) ? 0 : 1;
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}
return Error;
}
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int main()
{
int Error(0);
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Error += test_defined();
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Error += test_equal<float>();
Error += test_equal<double>();
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return Error;
}