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/***************************************************************************
* Copyright (c) Johan Mabille, Sylvain Corlay, Wolf Vollprecht and *
* Martin Renou *
* Copyright (c) QuantStack *
* Copyright (c) Serge Guelton *
* *
* Distributed under the terms of the BSD 3-Clause License. *
* *
* The full license is in the file LICENSE, distributed with this software. *
****************************************************************************/
#include "xsimd/xsimd.hpp"
#ifndef XSIMD_NO_SUPPORTED_ARCHITECTURE
#include "test_utils.hpp"
#ifndef __FAST_MATH__
namespace detail
{
template <class T, bool is_int = std::is_integral_v<typename T::value_type>>
struct infinity_tester
{
static void test_isfinite()
{
T input(1);
INFO("input: ", input);
CHECK_UNARY(xsimd::all(xsimd::isfinite(input)));
}
static void test_isinf()
{
T input(1);
INFO("input: ", input);
CHECK_FALSE(xsimd::any(xsimd::isinf(input)));
}
};
template <class T>
struct infinity_tester<T, false>
{
static void test_isfinite()
{
T input = xsimd::infinity<T>();
CHECK_FALSE(xsimd::any(xsimd::isfinite(input)));
}
static void test_isinf()
{
T input = xsimd::infinity<T>();
CHECK_UNARY(xsimd::all(xsimd::isinf(input)));
}
};
}
#endif
template <class B>
struct basic_math_test
{
using batch_type = B;
using value_type = typename B::value_type;
static constexpr size_t size = B::size;
using array_type = std::array<value_type, size>;
array_type lhs;
array_type rhs;
array_type clip_input;
array_type from_input;
basic_math_test()
{
for (size_t i = 0; i < size; ++i)
{
lhs[i] = value_type(i) / 4 + value_type(1.2) * std::sqrt(value_type(i + 0.25)) + value_type(1.);
rhs[i] = value_type(10.2) / (i + 2) + value_type(0.25) + value_type(1.);
clip_input[i] = static_cast<value_type>(i) * value_type(0.25);
from_input[i] = rhs[i] - value_type(1);
}
}
void test_fmod() const
{
array_type expected;
std::transform(
lhs.cbegin(), lhs.cend(), rhs.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return std::fmod(l, r); });
batch_type res = xsimd::fmod(batch_lhs(), batch_rhs());
CHECK_BATCH_EQ(res, expected);
}
void test_remainder() const
{
array_type expected;
std::transform(lhs.cbegin(), lhs.cend(), rhs.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return std::remainder(l, r); });
batch_type res = xsimd::remainder(batch_lhs(), batch_rhs());
CHECK_BATCH_EQ(res, expected);
}
void test_fdim() const
{
array_type expected;
std::transform(lhs.cbegin(), lhs.cend(), rhs.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return std::fdim(l, r); });
batch_type res = xsimd::fdim(batch_lhs(), batch_rhs());
CHECK_BATCH_EQ(res, expected);
}
void test_clip()
{
value_type clip_lo = static_cast<value_type>(0.5);
value_type clip_hi = static_cast<value_type>(1.);
array_type expected;
std::transform(clip_input.cbegin(), clip_input.cend(), expected.begin(),
[clip_lo, clip_hi](const value_type& l)
{
return l < clip_lo ? clip_lo : clip_hi < l ? clip_hi
: l;
});
batch_type res = xsimd::clip(batch_clip_input(), batch_type(clip_lo), batch_type(clip_hi));
CHECK_BATCH_EQ(res, expected);
}
#ifndef __FAST_MATH__
void test_isfinite()
{
detail::infinity_tester<batch_type>::test_isfinite();
}
void test_isinf()
{
detail::infinity_tester<batch_type>::test_isinf();
}
#endif
void test_nextafter()
{
array_type expected;
std::transform(from_input.cbegin(), from_input.cend(), rhs.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return std::nextafter(l, r); });
batch_type res = xsimd::nextafter(batch_from_input(), batch_rhs());
CHECK_BATCH_EQ(res, expected);
}
private:
batch_type batch_lhs() const
{
return batch_type::load_unaligned(lhs.data());
}
batch_type batch_rhs() const
{
return batch_type::load_unaligned(rhs.data());
}
batch_type batch_clip_input() const
{
return batch_type::load_unaligned(clip_input.data());
}
batch_type batch_from_input() const
{
return batch_type::load_unaligned(from_input.data());
}
};
TEST_CASE_TEMPLATE("[basic math tests]", B, BATCH_MATH_TYPES)
{
basic_math_test<B> Test;
SUBCASE("fmod") { Test.test_fmod(); }
SUBCASE("remainder") { Test.test_remainder(); }
SUBCASE("fdim") { Test.test_fdim(); }
SUBCASE("clip") { Test.test_clip(); }
#ifndef __FAST_MATH__
SUBCASE("isfinite") { Test.test_isfinite(); }
SUBCASE("isinf") { Test.test_isinf(); }
#endif
SUBCASE("nextafter") { Test.test_nextafter(); }
}
#endif