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Extend unit testing of half with ADL and arrays.

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This commit is contained in:
Gael Guennebaud 2016-07-21 15:47:21 +02:00
parent 87fbda812f
commit 82798162c0
1 changed files with 45 additions and 4 deletions
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49
unsupported/test/cxx11_float16.cpp
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@ -9,7 +9,10 @@
#define EIGEN_TEST_NO_COMPLEX
#define EIGEN_TEST_FUNC cxx11_float16
#include <sstream>
#include "main.h"
#include <Eigen/src/Core/arch/CUDA/Half.h>
using Eigen::half;
@ -90,11 +93,11 @@ void test_conversion()
void test_numtraits()
{
std::cout << "expsilin = " << NumTraits<half>::epsilon() << std::endl;
std::cout << "highest = " << NumTraits<half>::highest() << std::endl;
std::cout << "lowest = " << NumTraits<half>::lowest() << std::endl;
std::cout << "epsilon = " << NumTraits<half>::epsilon() << std::endl;
std::cout << "highest = " << NumTraits<half>::highest() << std::endl;
std::cout << "lowest = " << NumTraits<half>::lowest() << std::endl;
std::cout << "inifinty = " << NumTraits<half>::infinity() << std::endl;
std::cout << "nan = " << NumTraits<half>::quiet_NaN() << std::endl;
std::cout << "nan = " << NumTraits<half>::quiet_NaN() << std::endl;
}
@ -150,48 +153,85 @@ void test_comparison()
void test_basic_functions()
{
VERIFY_IS_EQUAL(float(numext::abs(half(3.5f))), 3.5f);
VERIFY_IS_EQUAL(float(abs(half(3.5f))), 3.5f);
VERIFY_IS_EQUAL(float(numext::abs(half(-3.5f))), 3.5f);
VERIFY_IS_EQUAL(float(abs(half(-3.5f))), 3.5f);
VERIFY_IS_EQUAL(float(numext::floor(half(3.5f))), 3.0f);
VERIFY_IS_EQUAL(float(floor(half(3.5f))), 3.0f);
VERIFY_IS_EQUAL(float(numext::floor(half(-3.5f))), -4.0f);
VERIFY_IS_EQUAL(float(floor(half(-3.5f))), -4.0f);
VERIFY_IS_EQUAL(float(numext::ceil(half(3.5f))), 4.0f);
VERIFY_IS_EQUAL(float(ceil(half(3.5f))), 4.0f);
VERIFY_IS_EQUAL(float(numext::ceil(half(-3.5f))), -3.0f);
VERIFY_IS_EQUAL(float(ceil(half(-3.5f))), -3.0f);
VERIFY_IS_APPROX(float(numext::sqrt(half(0.0f))), 0.0f);
VERIFY_IS_APPROX(float(sqrt(half(0.0f))), 0.0f);
VERIFY_IS_APPROX(float(numext::sqrt(half(4.0f))), 2.0f);
VERIFY_IS_APPROX(float(sqrt(half(4.0f))), 2.0f);
VERIFY_IS_APPROX(float(numext::pow(half(0.0f), half(1.0f))), 0.0f);
VERIFY_IS_APPROX(float(pow(half(0.0f), half(1.0f))), 0.0f);
VERIFY_IS_APPROX(float(numext::pow(half(2.0f), half(2.0f))), 4.0f);
VERIFY_IS_APPROX(float(pow(half(2.0f), half(2.0f))), 4.0f);
VERIFY_IS_EQUAL(float(numext::exp(half(0.0f))), 1.0f);
VERIFY_IS_EQUAL(float(exp(half(0.0f))), 1.0f);
VERIFY_IS_APPROX(float(numext::exp(half(EIGEN_PI))), 20.f + float(EIGEN_PI));
VERIFY_IS_APPROX(float(exp(half(EIGEN_PI))), 20.f + float(EIGEN_PI));
VERIFY_IS_EQUAL(float(numext::log(half(1.0f))), 0.0f);
VERIFY_IS_EQUAL(float(log(half(1.0f))), 0.0f);
VERIFY_IS_APPROX(float(numext::log(half(10.0f))), 2.30273f);
VERIFY_IS_APPROX(float(log(half(10.0f))), 2.30273f);
}
void test_trigonometric_functions()
{
VERIFY_IS_APPROX(numext::cos(half(0.0f)), half(cosf(0.0f)));
VERIFY_IS_APPROX(cos(half(0.0f)), half(cosf(0.0f)));
VERIFY_IS_APPROX(numext::cos(half(EIGEN_PI)), half(cosf(EIGEN_PI)));
//VERIFY_IS_APPROX(numext::cos(half(EIGEN_PI/2)), half(cosf(EIGEN_PI/2)));
//VERIFY_IS_APPROX(numext::cos(half(3*EIGEN_PI/2)), half(cosf(3*EIGEN_PI/2)));
VERIFY_IS_APPROX(numext::cos(half(3.5f)), half(cosf(3.5f)));
VERIFY_IS_APPROX(numext::sin(half(0.0f)), half(sinf(0.0f)));
VERIFY_IS_APPROX(sin(half(0.0f)), half(sinf(0.0f)));
// VERIFY_IS_APPROX(numext::sin(half(EIGEN_PI)), half(sinf(EIGEN_PI)));
VERIFY_IS_APPROX(numext::sin(half(EIGEN_PI/2)), half(sinf(EIGEN_PI/2)));
VERIFY_IS_APPROX(numext::sin(half(3*EIGEN_PI/2)), half(sinf(3*EIGEN_PI/2)));
VERIFY_IS_APPROX(numext::sin(half(3.5f)), half(sinf(3.5f)));
VERIFY_IS_APPROX(numext::tan(half(0.0f)), half(tanf(0.0f)));
VERIFY_IS_APPROX(tan(half(0.0f)), half(tanf(0.0f)));
// VERIFY_IS_APPROX(numext::tan(half(EIGEN_PI)), half(tanf(EIGEN_PI)));
// VERIFY_IS_APPROX(numext::tan(half(EIGEN_PI/2)), half(tanf(EIGEN_PI/2)));
//VERIFY_IS_APPROX(numext::tan(half(3*EIGEN_PI/2)), half(tanf(3*EIGEN_PI/2)));
VERIFY_IS_APPROX(numext::tan(half(3.5f)), half(tanf(3.5f)));
}
void test_array()
{
typedef Array<half,1,Dynamic> ArrayXh;
Index size = internal::random<Index>(1,10);
Index i = internal::random<Index>(0,size-1);
ArrayXh a1 = ArrayXh::Random(size), a2 = ArrayXh::Random(size);
VERIFY_IS_APPROX( a1+a1, half(2)*a1 );
VERIFY( (a1.abs() >= half(0)).all() );
VERIFY_IS_APPROX( (a1*a1).sqrt(), a1.abs() );
VERIFY( ((a1.min)(a2) <= (a1.max)(a2)).all() );
a1(i) = half(-10.);
VERIFY_IS_EQUAL( a1.minCoeff(), half(-10.) );
a1(i) = half(10.);
VERIFY_IS_EQUAL( a1.maxCoeff(), half(10.) );
std::stringstream ss;
ss << a1;
}
void test_cxx11_float16()
{
CALL_SUBTEST(test_conversion());
@ -200,4 +240,5 @@ void test_cxx11_float16()
CALL_SUBTEST(test_comparison());
CALL_SUBTEST(test_basic_functions());
CALL_SUBTEST(test_trigonometric_functions());
CALL_SUBTEST(test_array());
}