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meta.hpp/untests/examples/enum_example.cpp
2022-01-08 07:14:16 +07:00

51 lines
1.5 KiB
C++

/*******************************************************************************
* This file is part of the "https://github.com/blackmatov/meta.hpp"
* For conditions of distribution and use, see copyright notice in LICENSE.md
* Copyright (C) 2021, by Matvey Cherevko (blackmatov@gmail.com)
******************************************************************************/
#include "../meta_tests.hpp"
namespace
{
enum class color : unsigned {
red = 0xFF0000,
green = 0x00FF00,
blue = 0x0000FF,
white = red | green | blue,
};
}
TEST_CASE("meta/examples/enum") {
namespace meta = meta_hpp;
meta::enum_<color>()
.evalue_("red", color::red)
.evalue_("green", color::green)
.evalue_("blue", color::blue)
.evalue_("white", color::white);
meta::enum_type color_type = meta::resolve_type<color>();
{
meta::number_type color_underlying_type = color_type.get_underlying_type();
CHECK(color_underlying_type.get_size() == 4);
CHECK(color_underlying_type.get_flags().has(meta::number_flags::is_unsigned));
}
{
meta::evalue green_evalue = color_type.get_evalue("green");
CHECK(green_evalue.get_name() == "green");
CHECK(green_evalue.get_type() == color_type);
CHECK(green_evalue.get_value() == color::green);
}
{
CHECK(color_type.value_to_name(color::blue) == "blue");
CHECK(color_type.name_to_value("white") == color::white);
}
}