rotgen/test/unit/matrix/inverse.cpp
2025-09-28 16:15:15 +02:00

62 lines
2 KiB
C++

//==================================================================================================
/*
ROTGEN - Runtime Overlay for Eigen
Copyright : CODE RECKONS
SPDX-License-Identifier: BSL-1.0
*/
//==================================================================================================
#include "unit/tests.hpp"
#include "unit/common/arithmetic.hpp"
#include <rotgen/rotgen.hpp>
TTS_CASE_TPL("Test dynamic matrix inverse", rotgen::tests::types)
<typename T, typename O>( tts::type< tts::types<T,O>> )
{
using mat_t = rotgen::matrix<T,rotgen::Dynamic,rotgen::Dynamic,O::value>;
auto eps = std::numeric_limits<T>::epsilon();
auto const cases = rotgen::tests::generate_matrix_references();
for (const auto& [r, c, fn] : cases)
{
if(r == c)
{
auto input = mat_t::Random(r, c);
auto inv = rotgen::inverse(input);
auto rec = input * inv;
auto id = mat_t::Identity(rotgen::rows(rec),rotgen::cols(rec));
auto error = rec - id;
TTS_LESS_EQUAL(rotgen::maxCoeff(rotgen::abs(error)) / eps, 64.)
<< "Result:\n" << rec << "\n"
<< "Residuals:\n" << error << "\n";
}
}
};
TTS_CASE_TPL("Test static matrix inverse", rotgen::tests::types)
<typename T, typename O>( tts::type< tts::types<T,O>> )
{
using mat_t = rotgen::matrix<T,rotgen::Dynamic,rotgen::Dynamic,O::value>;
auto eps = std::numeric_limits<T>::epsilon();
auto const cases = rotgen::tests::generate_static_matrix_references();
auto process = [&]<typename D>(D const&)
{
if constexpr(D::rows == D::cols)
{
auto input = rotgen::matrix<T,D::rows,D::cols,O::value>::Random();
auto inv = rotgen::inverse(input);
auto rec = input * inv;
auto id = mat_t::Identity(rotgen::rows(rec),rotgen::cols(rec));
auto error = rec - id;
TTS_LESS_EQUAL(rotgen::maxCoeff(rotgen::abs(error)) / eps, 64.)
<< "Result:\n" << rec << "\n"
<< "Residuals:\n" << error << "\n";
}
};
std::apply([&](auto const&... d) { (process(d),...);}, cases);
};