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stuce-bot 2025-06-30 20:47:33 +02:00
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218
libraries/M5Utility/test/expected/bases.cpp Normal file
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#include <gtest/gtest.h>
#include <m5_utility/stl/expected.hpp>
#include <string>
// Old versions of GCC don't have the correct trait names. Could fix them up if needs be.
#if (defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ <= 9 && !defined(__clang__))
// nothing for now
#else
TEST(Expected, Triviality)
{
EXPECT_TRUE((std::is_trivially_copy_constructible<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_trivially_copy_assignable<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_trivially_move_constructible<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_trivially_move_assignable<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_trivially_destructible<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_trivially_copy_constructible<m5::stl::expected<void, int> >::value));
EXPECT_TRUE((std::is_trivially_move_constructible<m5::stl::expected<void, int> >::value));
EXPECT_TRUE((std::is_trivially_destructible<m5::stl::expected<void, int> >::value));
{
struct T {
T(const T&) = default;
T(T&&) = default;
T& operator=(const T&) = default;
T& operator=(T&&) = default;
~T() = default;
};
EXPECT_TRUE((std::is_trivially_copy_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_trivially_copy_assignable<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_trivially_move_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_trivially_move_assignable<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_trivially_destructible<m5::stl::expected<T, int> >::value));
}
{
struct T {
T(const T&)
{
}
T(T&&)
{
}
T& operator=(const T&)
{
return *this;
}
T& operator=(T&&)
{
return *this;
}
~T()
{
}
};
EXPECT_TRUE(!(std::is_trivially_copy_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE(!(std::is_trivially_copy_assignable<m5::stl::expected<T, int> >::value));
EXPECT_TRUE(!(std::is_trivially_move_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE(!(std::is_trivially_move_assignable<m5::stl::expected<T, int> >::value));
EXPECT_TRUE(!(std::is_trivially_destructible<m5::stl::expected<T, int> >::value));
}
}
TEST(Expected, Deletion)
{
EXPECT_TRUE((std::is_copy_constructible<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_copy_assignable<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_move_constructible<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_move_assignable<m5::stl::expected<int, int> >::value));
EXPECT_TRUE((std::is_destructible<m5::stl::expected<int, int> >::value));
{
struct T {
T() = default;
};
EXPECT_TRUE((std::is_default_constructible<m5::stl::expected<T, int> >::value));
}
{
struct T {
T(int)
{
}
};
EXPECT_TRUE(!(std::is_default_constructible<m5::stl::expected<T, int> >::value));
}
{
struct T {
T(const T&) = default;
T(T&&) = default;
T& operator=(const T&) = default;
T& operator=(T&&) = default;
~T() = default;
};
EXPECT_TRUE((std::is_copy_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_copy_assignable<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_move_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_move_assignable<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_destructible<m5::stl::expected<T, int> >::value));
}
{
struct T {
T(const T&) = delete;
T(T&&) = delete;
T& operator=(const T&) = delete;
T& operator=(T&&) = delete;
};
EXPECT_TRUE(!(std::is_copy_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE(!(std::is_copy_assignable<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((!std::is_move_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE(!(std::is_move_assignable<m5::stl::expected<T, int> >::value));
}
{
struct T {
T(const T&) = delete;
T(T&&) = default;
T& operator=(const T&) = delete;
T& operator=(T&&) = default;
};
EXPECT_TRUE(!(std::is_copy_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE(!(std::is_copy_assignable<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_move_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_move_assignable<m5::stl::expected<T, int> >::value));
}
{
struct T {
T(const T&) = default;
T(T&&) = delete;
T& operator=(const T&) = default;
T& operator=(T&&) = delete;
};
EXPECT_TRUE((std::is_copy_constructible<m5::stl::expected<T, int> >::value));
EXPECT_TRUE((std::is_copy_assignable<m5::stl::expected<T, int> >::value));
}
{
m5::stl::expected<int, int> e;
EXPECT_TRUE(std::is_default_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_copy_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_move_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_copy_assignable<decltype(e)>::value);
EXPECT_TRUE(std::is_move_assignable<decltype(e)>::value);
EXPECT_TRUE(TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(decltype(e))::value);
EXPECT_TRUE(TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(decltype(e))::value);
#if !defined(TL_EXPECTED_GCC49)
EXPECT_TRUE(std::is_trivially_move_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_trivially_move_assignable<decltype(e)>::value);
#endif
}
{
m5::stl::expected<int, std::string> e;
EXPECT_TRUE(std::is_default_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_copy_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_move_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_copy_assignable<decltype(e)>::value);
EXPECT_TRUE(std::is_move_assignable<decltype(e)>::value);
EXPECT_TRUE(!TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(decltype(e))::value);
EXPECT_TRUE(!TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(decltype(e))::value);
#if !defined(TL_EXPECTED_GCC49)
EXPECT_TRUE(!std::is_trivially_move_constructible<decltype(e)>::value);
EXPECT_TRUE(!std::is_trivially_move_assignable<decltype(e)>::value);
#endif
}
{
m5::stl::expected<std::string, int> e;
EXPECT_TRUE(std::is_default_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_copy_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_move_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_copy_assignable<decltype(e)>::value);
EXPECT_TRUE(std::is_move_assignable<decltype(e)>::value);
EXPECT_TRUE(!TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(decltype(e))::value);
EXPECT_TRUE(!TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(decltype(e))::value);
#if !defined(TL_EXPECTED_GCC49)
EXPECT_TRUE(!std::is_trivially_move_constructible<decltype(e)>::value);
EXPECT_TRUE(!std::is_trivially_move_assignable<decltype(e)>::value);
#endif
}
{
m5::stl::expected<std::string, std::string> e;
EXPECT_TRUE(std::is_default_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_copy_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_move_constructible<decltype(e)>::value);
EXPECT_TRUE(std::is_copy_assignable<decltype(e)>::value);
EXPECT_TRUE(std::is_move_assignable<decltype(e)>::value);
EXPECT_TRUE(!TL_EXPECTED_IS_TRIVIALLY_COPY_CONSTRUCTIBLE(decltype(e))::value);
EXPECT_TRUE(!TL_EXPECTED_IS_TRIVIALLY_COPY_ASSIGNABLE(decltype(e))::value);
#if !defined(TL_EXPECTED_GCC49)
EXPECT_TRUE(!std::is_trivially_move_constructible<decltype(e)>::value);
EXPECT_TRUE(!std::is_trivially_move_assignable<decltype(e)>::value);
#endif
}
}
#endif