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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"
template <class B>
struct trigonometric_test
{
using batch_type = B;
using value_type = typename B::value_type;
static constexpr size_t size = B::size;
using vector_type = std::vector<value_type>;
size_t nb_input;
vector_type input;
vector_type ainput;
vector_type atan_input;
vector_type expected;
vector_type res;
trigonometric_test()
{
nb_input = size * 10000;
input.resize(nb_input);
ainput.resize(nb_input);
atan_input.resize(nb_input);
for (size_t i = 0; i < nb_input; ++i)
{
input[i] = value_type(0.) + i * value_type(80.) / nb_input;
ainput[i] = value_type(-1.) + value_type(2.) * i / nb_input;
atan_input[i] = value_type(-10.) + i * value_type(20.) / nb_input;
}
expected.resize(nb_input);
res.resize(nb_input);
}
void test_trigonometric_functions()
{
// sin
{
std::transform(input.cbegin(), input.cend(), expected.begin(),
[](const value_type& v)
{ return std::sin(v); });
batch_type in, out;
for (size_t i = 0; i < nb_input; i += size)
{
detail::load_batch(in, input, i);
out = sin(in);
detail::store_batch(out, res, i);
}
size_t diff = detail::get_nb_diff(res, expected);
INFO("sin");
CHECK_EQ(diff, 0);
}
// cos
{
std::transform(input.cbegin(), input.cend(), expected.begin(),
[](const value_type& v)
{ return std::cos(v); });
batch_type in, out;
for (size_t i = 0; i < nb_input; i += size)
{
detail::load_batch(in, input, i);
out = cos(in);
detail::store_batch(out, res, i);
}
size_t diff = detail::get_nb_diff(res, expected);
INFO("cos");
CHECK_EQ(diff, 0);
}
// sincos
{
vector_type expected2(nb_input), res2(nb_input);
std::transform(input.cbegin(), input.cend(), expected.begin(),
[](const value_type& v)
{ return std::sin(v); });
std::transform(input.cbegin(), input.cend(), expected2.begin(),
[](const value_type& v)
{ return std::cos(v); });
batch_type in, out1, out2;
for (size_t i = 0; i < nb_input; i += size)
{
detail::load_batch(in, input, i);
std::tie(out1, out2) = sincos(in);
detail::store_batch(out1, res, i);
detail::store_batch(out2, res2, i);
}
size_t diff = detail::get_nb_diff(res, expected);
INFO("sincos(sin)");
CHECK_EQ(diff, 0);
diff = detail::get_nb_diff(res2, expected2);
INFO("sincos(cos)");
CHECK_EQ(diff, 0);
}
// tan
{
std::transform(input.cbegin(), input.cend(), expected.begin(),
[](const value_type& v)
{ return std::tan(v); });
batch_type in, out;
for (size_t i = 0; i < nb_input; i += size)
{
detail::load_batch(in, input, i);
out = tan(in);
detail::store_batch(out, res, i);
}
size_t diff = detail::get_nb_diff(res, expected);
INFO("tan");
CHECK_EQ(diff, 0);
}
}
void test_reciprocal_functions()
{
// asin
{
std::transform(ainput.cbegin(), ainput.cend(), expected.begin(),
[](const value_type& v)
{ return std::asin(v); });
batch_type in, out;
for (size_t i = 0; i < nb_input; i += size)
{
detail::load_batch(in, ainput, i);
out = asin(in);
detail::store_batch(out, res, i);
}
size_t diff = detail::get_nb_diff(res, expected);
INFO("asin");
CHECK_EQ(diff, 0);
}
// acos
{
std::transform(ainput.cbegin(), ainput.cend(), expected.begin(),
[](const value_type& v)
{ return std::acos(v); });
batch_type in, out;
for (size_t i = 0; i < nb_input; i += size)
{
detail::load_batch(in, ainput, i);
out = acos(in);
detail::store_batch(out, res, i);
}
size_t diff = detail::get_nb_diff(res, expected);
INFO("acos");
CHECK_EQ(diff, 0);
}
// atan
{
std::transform(atan_input.cbegin(), atan_input.cend(), expected.begin(),
[](const value_type& v)
{ return std::atan(v); });
batch_type in, out;
for (size_t i = 0; i < nb_input; i += size)
{
detail::load_batch(in, atan_input, i);
out = atan(in);
detail::store_batch(out, res, i);
}
size_t diff = detail::get_nb_diff(res, expected);
INFO("atan");
CHECK_EQ(diff, 0);
}
// atan2
{
std::transform(atan_input.cbegin(), atan_input.cend(), input.cbegin(), expected.begin(),
[](const value_type& v, const value_type& r)
{ return std::atan2(v, r); });
batch_type in, rhs, out;
for (size_t i = 0; i < nb_input; i += size)
{
detail::load_batch(in, atan_input, i);
detail::load_batch(rhs, input, i);
out = atan2(in, rhs);
detail::store_batch(out, res, i);
}
size_t diff = detail::get_nb_diff(res, expected);
INFO("atan2");
CHECK_EQ(diff, 0);
}
}
};
TEST_CASE_TEMPLATE("[trigonometric]", B, BATCH_FLOAT_TYPES)
{
trigonometric_test<B> Test;
SUBCASE("trigonometric")
{
Test.test_trigonometric_functions();
}
SUBCASE("reciprocal")
{
Test.test_reciprocal_functions();
}
}
#endif
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