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stuce-bot 2025-06-30 20:47:33 +02:00
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libraries/M5Utility/test/optional/constexpr.cpp Normal file
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#include <gtest/gtest.h>
#include <m5_utility/stl/optional.hpp>
#include "helper.hpp"
TEST(Optional, Constexpr)
{
#if !defined(TL_OPTIONAL_MSVC2015) && defined(TL_OPTIONAL_CXX14)
{
SCOPED_TRACE("empty construct");
constexpr m5::stl::optional<int> o2{};
constexpr m5::stl::optional<int> o3 = {};
constexpr m5::stl::optional<int> o4 = m5::stl::nullopt;
constexpr m5::stl::optional<int> o5 = {m5::stl::nullopt};
constexpr m5::stl::optional<int> o6(m5::stl::nullopt);
STATIC_EXPECT_TRUE(!o2);
STATIC_EXPECT_TRUE(!o3);
STATIC_EXPECT_TRUE(!o4);
STATIC_EXPECT_TRUE(!o5);
STATIC_EXPECT_TRUE(!o6);
}
{
SCOPED_TRACE("value construct");
constexpr m5::stl::optional<int> o1 = 42;
constexpr m5::stl::optional<int> o2{42};
constexpr m5::stl::optional<int> o3(42);
constexpr m5::stl::optional<int> o4 = {42};
constexpr int i = 42;
constexpr m5::stl::optional<int> o5 = std::move(i);
constexpr m5::stl::optional<int> o6{std::move(i)};
constexpr m5::stl::optional<int> o7(std::move(i));
constexpr m5::stl::optional<int> o8 = {std::move(i)};
STATIC_EXPECT_TRUE(*o1 == 42);
STATIC_EXPECT_TRUE(*o2 == 42);
STATIC_EXPECT_TRUE(*o3 == 42);
STATIC_EXPECT_TRUE(*o4 == 42);
STATIC_EXPECT_TRUE(*o5 == 42);
STATIC_EXPECT_TRUE(*o6 == 42);
STATIC_EXPECT_TRUE(*o7 == 42);
STATIC_EXPECT_TRUE(*o8 == 42);
}
#endif
}