BlackMATov/enum.hpp
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Matvey Cherevko
2019-11-22 06:34:53 +07:00
parent 3b47ce65e4
commit 516759f961
2 changed files with 24 additions and 22 deletions
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README.md
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@@ -164,33 +164,35 @@ namespace
(white = red | green | blue))
}
SECTION("traits_using") {
int main() {
// size
STATIC_REQUIRE(color_traits::size == 4);
static_assert(color_traits::size == 4);
// to_underlying
STATIC_REQUIRE(color_traits::to_underlying(color::white) == 0xFFFFFF);
static_assert(color_traits::to_underlying(color::white) == 0xFFFFFF);
// to_string
STATIC_REQUIRE(color_traits::to_string(color::red) == "red");
STATIC_REQUIRE(color_traits::to_string(color(42)) == std::nullopt);
static_assert(color_traits::to_string(color::red) == "red");
static_assert(color_traits::to_string(color(42)) == std::nullopt);
// from_string
STATIC_REQUIRE(color_traits::from_string("green") == color::green);
STATIC_REQUIRE(color_traits::from_string("error") == std::nullopt);
static_assert(color_traits::from_string("green") == color::green);
static_assert(color_traits::from_string("error") == std::nullopt);
// to_index
STATIC_REQUIRE(color_traits::to_index(color::blue) == 2);
STATIC_REQUIRE(color_traits::to_index(color(42)) == std::nullopt);
static_assert(color_traits::to_index(color::blue) == 2);
static_assert(color_traits::to_index(color(42)) == std::nullopt);
// from_index
STATIC_REQUIRE(color_traits::from_index(2) == color::blue);
STATIC_REQUIRE(color_traits::from_index(42) == std::nullopt);
static_assert(color_traits::from_index(2) == color::blue);
static_assert(color_traits::from_index(42) == std::nullopt);
// names
for ( auto n : color_traits::names ) {
std::cout << n << ",";
} // stdout: red,green,blue,
return 0;
}
```