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#include <iostream>
#define BOOST_TEST_MAIN
#include <boost/test/included/unit_test.hpp>
#include <boost/test/floating_point_comparison.hpp>
#include <cmath>
#include "../vec.hpp"
using namespace nova;
using namespace std;
template <typename F>
void test_get_set(void)
{
vec<F> v;
for (int i = 0; i != v.size; ++i)
v.set(i, (F)1.0*i);
for (int i = 0; i != v.size; ++i)
BOOST_REQUIRE_EQUAL( v.get(i), F(1.0*i));
vec<F> w;
w.set_slope(0, 1.0);
for (int i = 0; i != v.size; ++i)
BOOST_REQUIRE_EQUAL( w.get(i), F(1.0*i));
}
template <typename VecType>
void compare_float_mask(VecType const & v, unsigned int mask)
{
for (int i = 0; i != v.size; ++i) {
union {
float f;
unsigned int i;
} x;
x.f = v.get(i);
BOOST_REQUIRE_EQUAL( x.i, mask);
}
}
void test_gen_float(void)
{
typedef vec<float> vec_t;
#if defined(__SSE__) || defined (__AVX__)
vec_t zero = vec_t::gen_zero();
for (int i = 0; i != zero.size; ++i)
BOOST_REQUIRE_EQUAL( zero.get(i), 0.f);
vec_t one = vec_t::gen_one();
for (int i = 0; i != one.size; ++i)
BOOST_REQUIRE_EQUAL( one.get(i), 1.f);
vec_t half = vec_t::gen_05();
for (int i = 0; i != one.size; ++i)
BOOST_REQUIRE_EQUAL( half.get(i), 0.5f);
vec_t sign_mask = vec_t::gen_sign_mask();
compare_float_mask(sign_mask, 0x80000000);
vec_t abs_mask = vec_t::gen_abs_mask();
compare_float_mask(abs_mask, 0x7fffffff);
vec_t exp_mask = vec_t::gen_exp_mask();
compare_float_mask(exp_mask, 0x7F800000);
vec_t exp1_mask = vec_t::gen_exp_mask_1();
compare_float_mask(exp1_mask, 0x3F000000);
#endif
}
BOOST_AUTO_TEST_CASE( get_set )
{
test_get_set<float>();
test_get_set<double>();
test_gen_float();
}
template <typename T>
void test_slope(void)
{
typedef vec<T> vec_t;
vec_t vec;
T increment = vec.set_slope(0, 1);
T expected_increment = vec_t::size * 1;
BOOST_REQUIRE_CLOSE_FRACTION( increment, expected_increment, 0.001);
for (int i = 0; i != vec_t::size; ++i)
BOOST_REQUIRE_CLOSE_FRACTION( vec.get(i), i, 0.001);
}
BOOST_AUTO_TEST_CASE( slope )
{
test_slope<float>();
test_slope<double>();
}
template <typename T>
void test_select(void)
{
typedef vec<T> vec_t;
vec_t a(1.0), b(2.0);
vec_t zero = vec_t::gen_zero();
vec_t ones = vec_t::gen_ones();
vec_t select_a = select(a, b, zero);
vec_t select_b = select(a, b, ones);
BOOST_REQUIRE(select_a.get(0) == 1);
BOOST_REQUIRE(select_b.get(0) == 2);
}
BOOST_AUTO_TEST_CASE( select_tester )
{
test_select<float>();
test_select<double>();
}
BOOST_AUTO_TEST_CASE( align_ )
{
BOOST_REQUIRE(vec<double>::is_aligned(NULL));
BOOST_REQUIRE(vec<float>::is_aligned(NULL));
BOOST_REQUIRE(!vec<double>::is_aligned((double*)(1)));
BOOST_REQUIRE(!vec<float>::is_aligned((float*)(1)));
}
template <typename T>
void test_undenormalize(void)
{
const T min_positive_value = std::numeric_limits<T>::min();
typedef vec<T> vec_t;
vec_t denormal(min_positive_value/2);
vec_t fixed = undenormalize(denormal);
BOOST_REQUIRE(fixed.get(0) == 0);
vec_t normal(min_positive_value);
BOOST_REQUIRE(normal.get(0) == min_positive_value);
}
BOOST_AUTO_TEST_CASE( undenormalize_tester )
{
test_undenormalize<float>();
test_undenormalize<double>();
}
template <typename T>
void test_reciprocal(void)
{
typedef vec<T> vec_t;
vec_t four(4.0);
T result = reciprocal(four).get(0);
BOOST_REQUIRE_CLOSE(result, 0.25, 1e-5);
}
BOOST_AUTO_TEST_CASE( reciprocal_tester )
{
test_reciprocal<float>();
test_reciprocal<double>();
}
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