44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
#include <gtest/gtest.h>
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#include <m5_utility/stl/optional.hpp>
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#include "helper.hpp"
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TEST(Optional, Constexpr)
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{
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#if !defined(TL_OPTIONAL_MSVC2015) && defined(TL_OPTIONAL_CXX14)
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{
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SCOPED_TRACE("empty construct");
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constexpr m5::stl::optional<int> o2{};
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constexpr m5::stl::optional<int> o3 = {};
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constexpr m5::stl::optional<int> o4 = m5::stl::nullopt;
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constexpr m5::stl::optional<int> o5 = {m5::stl::nullopt};
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constexpr m5::stl::optional<int> o6(m5::stl::nullopt);
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STATIC_EXPECT_TRUE(!o2);
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STATIC_EXPECT_TRUE(!o3);
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STATIC_EXPECT_TRUE(!o4);
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STATIC_EXPECT_TRUE(!o5);
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STATIC_EXPECT_TRUE(!o6);
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}
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{
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SCOPED_TRACE("value construct");
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constexpr m5::stl::optional<int> o1 = 42;
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constexpr m5::stl::optional<int> o2{42};
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constexpr m5::stl::optional<int> o3(42);
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constexpr m5::stl::optional<int> o4 = {42};
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constexpr int i = 42;
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constexpr m5::stl::optional<int> o5 = std::move(i);
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constexpr m5::stl::optional<int> o6{std::move(i)};
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constexpr m5::stl::optional<int> o7(std::move(i));
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constexpr m5::stl::optional<int> o8 = {std::move(i)};
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STATIC_EXPECT_TRUE(*o1 == 42);
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STATIC_EXPECT_TRUE(*o2 == 42);
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STATIC_EXPECT_TRUE(*o3 == 42);
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STATIC_EXPECT_TRUE(*o4 == 42);
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STATIC_EXPECT_TRUE(*o5 == 42);
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STATIC_EXPECT_TRUE(*o6 == 42);
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STATIC_EXPECT_TRUE(*o7 == 42);
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STATIC_EXPECT_TRUE(*o8 == 42);
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}
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#endif
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}
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