glm/test/core/core_func_exponential.cpp

///////////////////////////////////////////////////////////////////////////////////////////////////
// OpenGL Mathematics Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
///////////////////////////////////////////////////////////////////////////////////////////////////
// Created : 2011-01-15
// Updated : 2011-09-13
// Licence : This source is under MIT licence
// File    : test/core/func_exponential.cpp
///////////////////////////////////////////////////////////////////////////////////////////////////

#include <glm/common.hpp>
#include <glm/exponential.hpp>
#include <glm/gtc/ulp.hpp>
#include <glm/gtx/vec1.hpp>

int test_pow()
{
	int Error(0);

	float A = glm::pow(10.f, 10.f);
	glm::vec1 B = glm::pow(glm::vec1(10.f), glm::vec1(10.f));
	glm::vec2 C = glm::pow(glm::vec2(10.f), glm::vec2(10.f));
	glm::vec3 D = glm::pow(glm::vec3(10.f), glm::vec3(10.f));
	glm::vec4 E = glm::pow(glm::vec4(10.f), glm::vec4(10.f));

	return Error;
}

int test_exp()
{
	int Error(0);

	float A = glm::exp(10.f);
	glm::vec1 B = glm::exp(glm::vec1(10.f));
	glm::vec2 C = glm::exp(glm::vec2(10.f));
	glm::vec3 D = glm::exp(glm::vec3(10.f));
	glm::vec4 E = glm::exp(glm::vec4(10.f));

	return Error;
}

int test_log()
{
	int Error(0);

	float A = glm::log(10.f);
	glm::vec1 B = glm::log(glm::vec1(10.f));
	glm::vec2 C = glm::log(glm::vec2(10.f));
	glm::vec3 D = glm::log(glm::vec3(10.f));
	glm::vec4 E = glm::log(glm::vec4(10.f));

	return Error;
}

int test_exp2()
{
	int Error(0);

	float A = glm::exp2(10.f);
	glm::vec1 B = glm::exp2(glm::vec1(10.f));
	glm::vec2 C = glm::exp2(glm::vec2(10.f));
	glm::vec3 D = glm::exp2(glm::vec3(10.f));
	glm::vec4 E = glm::exp2(glm::vec4(10.f));

	return Error;
}

int test_log2()
{
	int Error(0);

	float A = glm::log2(10.f);
	glm::vec1 B = glm::log2(glm::vec1(10.f));
	glm::vec2 C = glm::log2(glm::vec2(10.f));
	glm::vec3 D = glm::log2(glm::vec3(10.f));
	glm::vec4 E = glm::log2(glm::vec4(10.f));

	return Error;
}

int test_sqrt()
{
	int Error(0);

	float A = glm::sqrt(10.f);
	glm::vec1 B = glm::sqrt(glm::vec1(10.f));
	glm::vec2 C = glm::sqrt(glm::vec2(10.f));
	glm::vec3 D = glm::sqrt(glm::vec3(10.f));
	glm::vec4 E = glm::sqrt(glm::vec4(10.f));

	return Error;
}

int test_inversesqrt()
{
	int Error(0);

	glm::uint ulp(0);
	float diff(0.0f);

	for(float f = 0.001f; f < 10.f; f *= 1.001f)
	{
		glm::lowp_fvec1 lowp_v = glm::inversesqrt(glm::lowp_fvec1(f));
		float defaultp_v = glm::inversesqrt(f);

		ulp = glm::max(glm::float_distance(lowp_v.x, defaultp_v), ulp);
		diff = glm::abs(lowp_v.x - defaultp_v);
	}

	return Error;
}

int main()
{
	int Error(0);

	Error += test_pow();
	Error += test_exp();
	Error += test_log();
	Error += test_exp2();
	Error += test_log2();
	Error += test_sqrt();
	Error += test_inversesqrt();

	return Error;
}